DAPPRA DPR-1440-NPN-NC Safety Light Curtain Area Sensor
Rp2,050,000.00
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DAPPRA DPR-1440-NPN-NC is a 14-beam industrial safety light curtain area sensor with 40 mm optical axis pitch and 520 mm protection height. Through-beam infrared detection, NPN NC output, IP65 protection, ideal for machine protection, access monitoring, and industrial automation applications.
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DPR-1440-NPN-NC Safety Light Curtain Area Sensor
When an object enters the detection area and interrupts the infrared beams, the receiver detects the interruption and changes the sensor output according to the configured signal logic. The DPR-1440-NPN-NC is a Safety Light Curtain Area Sensor designed for machine protection and industrial automation applications, including CNC machines, packaging machinery, conveyor systems and robot peripheral protection. This product uses multiple infrared beams to create a protective detection field, offering a more comprehensive safety solution than single-point photoelectric sensors.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | DAPPRA |
| Manufacturer | DAPPRA Automation |
| Product Series | DPR Series |
| Model | DPR-1440-NPN-NC |
| SKU | SH30 |
| Product Category | Safety Light Curtain Area Sensor |
| Detection Method | Through Beam Infrared Detection |
| Beam Quantity | 14 Beams |
| Optical Axis Pitch | 40 mm |
| Protection Height | 520 mm |
| Total Height | 606 mm |
| Output Type | NPN Output |
| Signal Logic | NC (Normally Closed) |
| Response Time | <5 ms |
| Power Supply | DC24V ±20% |
| Protection Rating | IP65 |
| Detection Distance | 0.2–3 m |
| Ambient Light Resistance | 10000 Lux |
| Operating Temperature | -10°C to 55°C |
| Cross Section | 29 × 30 mm |
Key Features
Through-Beam Infrared Detection
14-Beam Detection System with 40 mm Optical Axis Pitch, The DPR-1440-NPN-NC uses an emitter and receiver structure to create a through-beam infrared detection field. With 14 optical beams and 40 mm optical axis pitch, the sensor provides a 520 mm protection height for industrial object detection and machine monitoring.
Technical Attributes
- Detection Method: Through Beam Infrared Detection
- Beam Quantity: 14 Beams
- Optical Axis Pitch: 40 mm
- Protection Height: 520 mm
- Total Height: 606 mm
Fast Response Time <5 ms
The DPR-1440-NPN-NC provides a response time of less than 5 ms, enabling rapid detection when an object interrupts the infrared beam. This feature supports automated equipment requiring fast signal processing and machine control response.
IP65 Industrial Protection
The DPR Series is designed for industrial environments with IP65 protection rating.
It provides resistance against:
- Dust exposure
- Water exposure
- Oil contamination
- High-humidity operating conditions
High-Humidity Industrial Environment
The DPR Series is suitable for industrial automation equipment operating in environments where humidity and contamination may occur.
Typical applications include:
- CNC machines
- Packaging machinery
- Conveyor systems
- Automated production equipment
Anti-Vibration and Anti-Interference Design
The DPR-1440-NPN-NC is designed for industrial environments affected by mechanical vibration and electrical interference. The design helps maintain stable operation in automation systems.
NPN NC Output Configuration
Output Type: NPN
Signal Logic: NC (Normally Closed)
Operating logic:
Normal beam condition: Signal output 0V (low level)
Beam interrupted: Output high impedance (no output)
Refer to the wiring diagram for connection details.
How Does the DPR-1440-NPN-NC Safety Light Curtain Work?
Working Principle of DPR-1440-NPN-NC
The DPR-1440-NPN-NC Safety Light Curtain Area Sensor uses a through-beam infrared detection method with an emitter and receiver. The emitter continuously sends multiple infrared beams toward the receiver to create a detection area. When an object enters the detection zone and blocks one or more beams, the receiver detects the interruption and changes the output signal according to the configured NPN NC logic.
Detection Process
- Infrared Beam Transmission — The emitter generates multiple infrared beams and sends them toward the receiver.
- Detection Area Creation — The multiple beams create a detection field. For DPR-1440-NPN-NC: Beam Quantity: 14, Optical Axis Pitch: 40 mm, Protection Height: 520 mm.
- Object Detection — When an object enters the detection area, one or more infrared beams are interrupted.
- Signal Output — The receiver processes the interruption and changes the output signal. DPR-1440-NPN-NC: Output Type: NPN, Signal Logic: NC.
Model Number Explanation
How to Read the DPR-1440-NPN-NC Model Number?
The model number of the DAPPRA DPR Series identifies the main technical configuration, including beam quantity, optical axis pitch, output type and signal logic.
Model Structure Table
| Model Code | Meaning | Description |
|---|---|---|
| DPR | Product Series | DAPPRA DPR Safety Light Curtain Series |
| 14 | Beam Quantity | 14 optical beams |
| 40 | Optical Axis Pitch | 40 mm beam spacing |
| NPN | Output Type | NPN transistor output |
| NC | Signal Logic | Normally Closed |
Example: DPR-1440-NPN-NC means:
| Item | Value |
|---|---|
| Series | DPR Series |
| Beam Quantity | 14 Beams |
| Optical Axis Pitch | 40 mm |
| Output | NPN |
| Signal Logic | NC |
| Product Type | Safety Light Curtain Area Sensor |
How to Select a DPR Series Safety Light Curtain?
Select According to Application Requirements
The DAPPRA DPR Series provides different beam quantities and optical axis pitch configurations for various industrial detection requirements.
When selecting a suitable Safety Light Curtain, consider the following parameters:
| Selection Factor | Explanation |
|---|---|
| Protection Height | Determines the vertical detection area required for the machine |
| Optical Axis Pitch | Determines beam spacing and detection resolution |
| Detection Distance | Select according to emitter and receiver installation distance |
| Output Type | Choose NPN or PNP according to controller input |
| Signal Logic | Select NO or NC according to control requirements |
| Installation Environment | Consider humidity, dust, vibration and interference conditions |
Understanding Protection Height
The protection height of a Safety Light Curtain is determined by the number of optical beams and the optical axis pitch.
Example: DPR-1440-NPN-NC
Optical Axis Pitch: 40 mm
Calculation: (14 - 1) × 40 mm = 520 mm
Complete DPR Series Model Selection Table
The DAPPRA DPR Series Safety Light Curtain Area Sensor includes different configurations based on beam quantity, optical axis pitch, and protection height.
The complete DPR Series model selection chart is provided below as a technical reference.
DPR Series 40 mm Optical Axis Pitch Configuration
The DPR Series 40 mm optical axis pitch models are available with different beam quantities and protection heights. The DPR-1440-NPN-NC model uses NPN output.
| Model | Beam Quantity | Optical Axis Pitch | Protection Height | Total Height | Output Type | Signal Logic |
|---|---|---|---|---|---|---|
| DPR-0440-NPN-NC | 4 | 40 mm | 120 mm | 206 mm | NPN | NC |
| DPR-0640-NPN-NC | 6 | 40 mm | 200 mm | 286 mm | NPN | NC |
| DPR-0840-NPN-NC | 8 | 40 mm | 280 mm | 366 mm | NPN | NC |
| DPR-1040-NPN-NC | 10 | 40 mm | 360 mm | 446 mm | NPN | NC |
| DPR-1240-PNP-NC | 12 | 40 mm | 440 mm | 526 mm | PNP | NC |
| DPR-1440-NPN-NC | 14 | 40 mm | 520 mm | 606 mm | NPN | NC |
| DPR-1640-NPN-NC | 16 | 40 mm | 600 mm | 686 mm | NPN | NC |
Complete DPR Series Selection Chart
The complete selection table includes:
- 10 mm optical axis pitch models
- 20 mm optical axis pitch models
- 40 mm optical axis pitch models
- Different beam quantity options
- Corresponding protection height values
- DPR Series model numbers
NPN NC Output and Wiring
DPR-1440-NPN-NC Wiring
The DPR-1440-NPN-NC uses NPN NC output.
Signal Logic
| Condition | Signal |
|---|---|
| Normal beam transmission | 0V output (low level) |
| Beam interrupted | High impedance (no output) |
DPR-1440-NPN-NC SH30 WIRING DIAGRAM
Mechanical Dimensions
DPR-1440-NPN-NC Dimensions
- 520 mm protection height
- 606 mm total height
- 40 mm optical axis pitch
- 29 × 30 mm cross section
DPR-1440-NPN-NC SH30 MECHANICAL DIMENSION DRAWING
Installation Methods
The DPR-1440-NPN-NC Safety Light Curtain supports flexible installation methods according to different machine structures and protection requirements.
The sensor can be installed using:
- Standard Vertical Installation
- Side Installation
- Adjustable Bracket Installation
DPR-1440-NPN-NC Installation Methods
Standard Vertical Installation
The standard vertical installation method places the emitter and receiver vertically opposite each other to create a detection area.
Suitable for:
- CNC machines
- Press machines
- Machine entrances
- Safety protection areas
Side Installation
Side installation allows the sensor to be mounted according to machine structure limitations where standard mounting space is restricted.
Suitable for:
- Compact equipment
- Limited installation space
- Customized machine layouts
Adjustable Bracket Installation
The adjustable bracket installation method allows flexible positioning and alignment of the emitter and receiver.
Advantages:
- Easier alignment
- Flexible mounting angle adjustment
- Suitable for customized automation equipment
Industrial Applications
DPR-1440-NPN-NC Application Areas
The DAPPRA DPR-1440-NPN-NC Safety Light Curtain is designed for industrial automation equipment requiring reliable object detection and machine protection.
With multi-beam infrared detection, fast response time and industrial protection features, the DPR Series can be applied in various automated production environments.
Typical applications include:
- CNC machines
- Press and hydraulic machines
- Packaging machinery
- Conveyor systems
- Robot workcells
DPR-1440-NPN-NC Industrial Application Overview
CNC Machine Protection
The DPR-1440-NPN-NC can be installed around CNC machining equipment to create a detection area for machine monitoring and protection applications.
Typical equipment:
- CNC machining centers
- Milling machines
- Turning machines
Press Machine Protection
The multi-beam infrared detection area of DPR Series sensors can be used around industrial press and hydraulic equipment.
Typical applications:
- Hydraulic presses
- Punching machines
- Metal forming equipment
Packaging Machinery
DPR Series sensors support object detection applications in automated packaging equipment.
Typical applications:
- Packaging lines
- Filling machines
- Automatic assembly systems
Conveyor System Detection
The DPR-1440-NPN-NC can be integrated into conveyor automation systems for object detection and machine control applications.
Typical applications:
- Material handling systems
- Production conveyors
- Automated logistics equipment
Robot Workcell Protection
The DPR-1440-NPN-NC can be installed around industrial robot workcells to create a multi-beam infrared detection area.
Typical applications:
- Robotic assembly cells
- Automated manufacturing lines
- Robot peripheral areas
Industrial Environment & Safety Performance
Designed for Demanding Industrial Automation Environments
The DAPPRA DPR-1440-NPN-NC Safety Light Curtain is designed for demanding industrial automation environments where equipment may be exposed to humidity, water, oil contamination, mechanical vibration and electromagnetic interference.
The DPR Series provides reliable detection performance for industrial machine applications with:
- High humidity resistance
- Water and oil protection
- Anti-vibration design
- Anti-interference capability
- IP65 protection rating
The DPR-1440-NPN-NC is suitable for industrial equipment requiring stable operation in challenging manufacturing environments.
Industrial Environment Specification
| Parameter | Specification |
|---|---|
| Protection Rating | IP65 |
| Operating Temperature | -10°C to 55°C |
| Ambient Light Resistance | 10000 Lux |
| Environmental Features | Humidity Resistance / Oil Protection / Anti-Vibration / Anti-Interference |
Safety Light Curtain for Machine Protection
The DAPPRA DPR-1440-NPN-NC belongs to the Safety Light Curtain Area Sensor category for machine protection applications.
Unlike single-point photoelectric sensors, the DPR-1440-NPN-NC uses multiple infrared beams between the emitter and receiver to create a detection zone.
The sensor provides:
- Multi-beam infrared detection
- Fast response time <5 ms
- NPN NC output configuration
- Machine protection applications
- SIL safety performance certification
SIL Safety Certification
SIL Certified Safety Performance
The DAPPRA DPR-1440-NPN-NC Safety Light Curtain has achieved SIL certification through third-party testing and verification.
The SIL certification confirms that the product has been evaluated by an independent third-party testing organization according to functional safety requirements.
Safety Certification Information
| Safety Parameter | Specification |
|---|---|
| Safety Integrity Level | SIL |
| Certification Type | Third-party Safety Certification |
| Product Model | DPR-1440-NPN-NC |
| SKU | SH30 |
Safety & Compliance Certifications
DAPPRA DPR-1440-NPN-NC is supported by safety and compliance documentation including:
- SIL Safety Certification
- CE Certification
- FCC Certification
- RoHS Compliance
Safety Light Curtain vs Single-Point Photoelectric Sensor
| Feature | Safety Light Curtain | Single-Point Photoelectric Sensor |
|---|---|---|
| Detection method | Multiple infrared beams | Single optical detection point |
| Detection area | Multi-beam area | Single point |
| Beam quantity | Multiple (e.g., 14 beams) | Typically one detection beam |
| Typical use | Area detection and machine protection | Object presence / position detection |
| DPR Series | Yes | No |
Safety Light Curtain vs Standard Area Sensor
The terms Safety Light Curtain and Area Sensor are sometimes used interchangeably, but they serve distinct purposes in industrial automation.
A Safety Light Curtain is specifically designed for machine protection applications and typically includes safety certifications (such as SIL). An Area Sensor generally describes a multi-beam photoelectric detection device used for general object detection.
The DPR-1440-NPN-NC is positioned as a Safety Light Curtain Area Sensor, combining the detection capabilities of an area sensor with safety-rated performance for machine protection.
Safety Light Curtain Area Sensor for Machine Protection
The DPR-1440-NPN-NC has obtained SIL Functional Safety Certification through third-party testing and certification. The SIL certification should be considered together with the product's documented safety characteristics and intended machine-protection applications.
Parameter Dictionary
Optical Axis Pitch
The distance between adjacent optical detection beams.
DPR-1440-NPN-NC: 40 mm
Beam Quantity
The number of optical beams used to form the detection field.
DPR-1440-NPN-NC: 14 beams
Protection Height
The vertical detection height created by the optical beam arrangement.
DPR-1440-NPN-NC: 520 mm
Total Height
The overall physical height of the sensor housing including end caps.
DPR-1440-NPN-NC: 606 mm
Detection Distance
The distance between the emitter and receiver within which the sensor operates.
DPR-1440-NPN-NC: 0.2–3 m
Response Time
The time required for the sensor to respond to a detected beam interruption.
DPR-1440-NPN-NC: <5 ms
NPN Output
A transistor output configuration commonly used with sinking inputs of PLCs and industrial control systems.
NC Signal Logic
Normally Closed signal logic. For the specified DPR-1440-NPN-NC configuration, normal beam transmission produces the specified 0V signal condition, while beam interruption removes the output.
DAPPRA Automation — Industrial Sensor Manufacturer
DAPPRA Automation is an industrial automation manufacturer and platform providing industrial control components, sensors, drives and supporting components for automation applications.
The DPR Series Safety Light Curtain is manufactured by DAPPRA's own production facility, supporting consistent product quality control and customized production requirements.
OEM & ODM Services
DAPPRA provides OEM and ODM manufacturing services based on customer designs, specifications or samples.
OEM & ODM support includes:
- Product customization
- Manufacturing based on customer requirements
- Customized industrial automation solutions
Global Service Markets
DAPPRA provides industrial automation products and OEM/ODM services for customers in:
- Indonesia
- Vietnam
- Russia
Factory Production Capability
Technical Resources
Download technical documents for the DAPPRA DPR-1440-NPN-NC Safety Light Curtain, including datasheet, CAD drawing and installation guide.
DPR-1440-NPN-NC Datasheet
Technical specification document including product parameters, working principle, wiring information, dimensions, certifications and application details.
DPR-1440-NPN-NC Installation Guide
Installation reference showing mounting methods, vertical installation, side installation and adjustable bracket installation.
DPR-1440-NPN-NC CAD Drawing
Mechanical drawing resource for engineers, including product dimensions and installation reference for machine integration.
Engineering FAQ
The following FAQ provides technical information about the DAPPRA DPR-1440-NPN-NC Safety Light Curtain, including product specifications, output configuration, applications, environmental performance and certification information.
The DAPPRA DPR-1440-NPN-NC is a DPR Series Safety Light Curtain Area Sensor designed for machine protection and industrial automation applications.
The product features:
| Parameter | Specification |
|---|---|
| Product Series | DPR Series |
| Model | DPR-1440-NPN-NC |
| SKU | SH30 |
| Detection Method | Through Beam Infrared Detection |
| Beam Quantity | 14 Beams |
| Optical Axis Pitch | 40 mm |
| Protection Height | 520 mm |
| Output Type | NPN |
| Signal Logic | NC |
The SKU of the DPR-1440-NPN-NC is: SH30
The model number represents the product configuration:
| Code | Description |
|---|---|
| DPR | DAPPRA DPR Series |
| 14 | 14 Optical Beams |
| 40 | 40 mm Optical Axis Pitch |
| NPN | NPN Output |
| NC | Normally Closed Signal Logic |
The DPR-1440-NPN-NC uses: 14 infrared optical beams
The optical axis pitch is: 40 mm
The optical axis pitch represents the distance between adjacent infrared beams.
The DPR-1440-NPN-NC provides: 520 mm protection height
The calculation is:
(14 - 1) × 40 mm = 520 mm
The total height of the DPR-1440-NPN-NC is: 606 mm
This includes the housing and end caps.
The DPR-1440-NPN-NC uses: Through-beam infrared detection
The system consists of:
- Infrared emitter
- Infrared receiver
- Detection area
- Output signal interface
The response time is: <5 ms
The DPR-1440-NPN-NC has a detection distance of 0.2–3 m.
The DPR-1440-NPN-NC has an IP65 protection rating, making it suitable for industrial environments where protection against dust and water jets is required.
The operating temperature range of the DPR-1440-NPN-NC is -10°C to +55°C.
The DPR-1440-NPN-NC uses: NPN NC output configuration
NPN output (sinking) switches the output to 0V when active, commonly used with PLC sinking inputs. PNP output (sourcing) switches the output to +V when active.
The DPR-1440-NPN-NC uses NPN output, which is compatible with NPN input modules commonly found in Asian and European industrial control systems.
NC means: Normally Closed signal logic
For the DPR-1440-NPN-NC configuration:
| Condition | Output Status |
|---|---|
| Normal beam condition | 0V signal output (low level) |
| Beam interruption | High impedance (no output) |
The specified power supply is: DC24V ±20%
The DPR-1440-NPN-NC should be connected according to the official DAPPRA wiring diagram.
The wiring configuration includes:
- DC24V power supply
- Emitter and receiver connection
- M12 connector interface
- NPN NC signal output
For detailed wiring information, refer to: DPR-1440-NPN-NC Wiring Diagram
Yes. The NPN NC output of the DPR-1440-NPN-NC can be connected to compatible PLC input circuits and industrial control systems. Check the wiring diagram and PLC input specifications before installation.
Yes. The DPR Series is designed for industrial environments requiring:
- High humidity resistance
- Water protection
- Oil contamination resistance
- IP65 protection
Yes. The DPR Series is designed for industrial automation environments where oil contamination may occur.
Yes. The DPR Series incorporates anti-vibration design features for industrial machinery applications.
Yes. The DPR Series is designed with interference-resistant capability for industrial automation environments.
Yes. The DPR-1440-NPN-NC can be applied to CNC machine protection and detection applications.
Yes. The DPR Series can be used for industrial press and hydraulic machine applications.
Yes. The DPR Series is suitable for automated packaging machinery requiring multi-beam object detection.
Yes. The DPR Series can be integrated into conveyor automation systems for object detection and machine control applications.
Yes. The DPR Series can be applied for robot peripheral protection and automated workcell detection.
The DPR-1440-NPN-NC can be used for industrial detection and machine protection applications, including CNC machines, press machines, conveyors, packaging equipment, and automated production lines.
Yes. The DPR-1440-NPN-NC has obtained SIL Functional Safety Certification through third-party testing and certification.
Certification information:
| Parameter | Specification |
|---|---|
| Safety Level | SIL |
| Certification Type | Third-party Certification |
| Product Model | DPR-1440-NPN-NC |
| SKU | SH30 |
Browse the certificate: Browse SIL Certificate section →
DAPPRA provides certification documentation including:
- SIL Functional Safety Certification
- CE Certification
- FCC Certification
- RoHS Compliance
Select the DPR Series model according to the required beam quantity, optical axis pitch, protection height, output configuration, and sensing distance. The DPR-1440-NPN-NC provides 14 beams, 40 mm optical axis pitch, 520 mm protection height, and NPN NC output.
The protection height is calculated using: Protection Height = (Beam Quantity - 1) × Optical Axis Pitch
For DPR-1440-NPN-NC: (14 - 1) × 40 mm = 520 mm
For selection, ensure the protection height covers the full area requiring detection on your machine.
The minimum safety distance depends on your machine's stopping time, the sensor's response time (<5 ms), and applicable safety standards. A general formula is: Safety Distance = Stopping Distance + Response Distance + Safety Margin
Refer to the installation guide or consult with a DAPPRA engineer for specific calculations based on your application.
The DPR-1440-NPN-NC is a safety-rated light curtain with SIL certification. Type 2 and Type 4 light curtains refer to categories defined in IEC 61496. The DPR Series is designed to meet the performance requirements for machine protection applications. For specific type classification, please refer to the product datasheet or contact DAPPRA engineering support.
The DPR Series can be integrated into conveyor systems for object detection and machine control. For muting applications (temporary suspension of safety function for material passage), additional external muting sensors and a muting logic controller would typically be required. Consult with DAPPRA engineering for your specific conveyor application requirements.
The DPR-1440-NPN-NC has an ambient light resistance of 10000 Lux, ensuring reliable operation even in brightly lit industrial environments.
Align the emitter and receiver by ensuring they are positioned directly opposite each other at the same height. Use the alignment indicator LEDs and a level tool to achieve proper alignment. The DPR Series includes alignment indicators to assist with installation. Refer to the installation guide for detailed procedures.
The cross-section of the DPR-1440-NPN-NC is 29 × 30 mm.
Yes. DAPPRA offers customization options including cable lengths, connector types, and other OEM specifications. Contact DAPPRA Automation for custom requirements.
Need Technical Support or a Quote?
Contact DAPPRA Automation for engineering assistance, pricing, or OEM/ODM inquiries.
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DPR-1440-NPN-NC Safety Light Curtain Area Sensor
When an object enters the detection area and interrupts the infrared beams, the receiver detects the interruption and changes the sensor output according to the configured signal logic. The DPR-1440-NPN-NC is a Safety Light Curtain Area Sensor designed for machine protection and industrial automation applications, including CNC machines, packaging machinery, conveyor systems and robot peripheral protection. This product uses multiple infrared beams to create a protective detection field, offering a more comprehensive safety solution than single-point photoelectric sensors.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | DAPPRA |
| Manufacturer | DAPPRA Automation |
| Product Series | DPR Series |
| Model | DPR-1440-NPN-NC |
| SKU | SH30 |
| Product Category | Safety Light Curtain Area Sensor |
| Detection Method | Through Beam Infrared Detection |
| Beam Quantity | 14 Beams |
| Optical Axis Pitch | 40 mm |
| Protection Height | 520 mm |
| Total Height | 606 mm |
| Output Type | NPN Output |
| Signal Logic | NC (Normally Closed) |
| Response Time | <5 ms |
| Power Supply | DC24V ±20% |
| Protection Rating | IP65 |
| Detection Distance | 0.2–3 m |
| Ambient Light Resistance | 10000 Lux |
| Operating Temperature | -10°C to 55°C |
| Cross Section | 29 × 30 mm |
Key Features
Through-Beam Infrared Detection
14-Beam Detection System with 40 mm Optical Axis Pitch, The DPR-1440-NPN-NC uses an emitter and receiver structure to create a through-beam infrared detection field. With 14 optical beams and 40 mm optical axis pitch, the sensor provides a 520 mm protection height for industrial object detection and machine monitoring.
Technical Attributes
- Detection Method: Through Beam Infrared Detection
- Beam Quantity: 14 Beams
- Optical Axis Pitch: 40 mm
- Protection Height: 520 mm
- Total Height: 606 mm
Fast Response Time <5 ms
The DPR-1440-NPN-NC provides a response time of less than 5 ms, enabling rapid detection when an object interrupts the infrared beam. This feature supports automated equipment requiring fast signal processing and machine control response.
IP65 Industrial Protection
The DPR Series is designed for industrial environments with IP65 protection rating.
It provides resistance against:
- Dust exposure
- Water exposure
- Oil contamination
- High-humidity operating conditions
High-Humidity Industrial Environment
The DPR Series is suitable for industrial automation equipment operating in environments where humidity and contamination may occur.
Typical applications include:
- CNC machines
- Packaging machinery
- Conveyor systems
- Automated production equipment
Anti-Vibration and Anti-Interference Design
The DPR-1440-NPN-NC is designed for industrial environments affected by mechanical vibration and electrical interference. The design helps maintain stable operation in automation systems.
NPN NC Output Configuration
Output Type: NPN
Signal Logic: NC (Normally Closed)
Operating logic:
Normal beam condition: Signal output 0V (low level)
Beam interrupted: Output high impedance (no output)
Refer to the wiring diagram for connection details.
How Does the DPR-1440-NPN-NC Safety Light Curtain Work?
Working Principle of DPR-1440-NPN-NC
The DPR-1440-NPN-NC Safety Light Curtain Area Sensor uses a through-beam infrared detection method with an emitter and receiver. The emitter continuously sends multiple infrared beams toward the receiver to create a detection area. When an object enters the detection zone and blocks one or more beams, the receiver detects the interruption and changes the output signal according to the configured NPN NC logic.
Detection Process
- Infrared Beam Transmission — The emitter generates multiple infrared beams and sends them toward the receiver.
- Detection Area Creation — The multiple beams create a detection field. For DPR-1440-NPN-NC: Beam Quantity: 14, Optical Axis Pitch: 40 mm, Protection Height: 520 mm.
- Object Detection — When an object enters the detection area, one or more infrared beams are interrupted.
- Signal Output — The receiver processes the interruption and changes the output signal. DPR-1440-NPN-NC: Output Type: NPN, Signal Logic: NC.
Model Number Explanation
How to Read the DPR-1440-NPN-NC Model Number?
The model number of the DAPPRA DPR Series identifies the main technical configuration, including beam quantity, optical axis pitch, output type and signal logic.
Model Structure Table
| Model Code | Meaning | Description |
|---|---|---|
| DPR | Product Series | DAPPRA DPR Safety Light Curtain Series |
| 14 | Beam Quantity | 14 optical beams |
| 40 | Optical Axis Pitch | 40 mm beam spacing |
| NPN | Output Type | NPN transistor output |
| NC | Signal Logic | Normally Closed |
Example: DPR-1440-NPN-NC means:
| Item | Value |
|---|---|
| Series | DPR Series |
| Beam Quantity | 14 Beams |
| Optical Axis Pitch | 40 mm |
| Output | NPN |
| Signal Logic | NC |
| Product Type | Safety Light Curtain Area Sensor |
How to Select a DPR Series Safety Light Curtain?
Select According to Application Requirements
The DAPPRA DPR Series provides different beam quantities and optical axis pitch configurations for various industrial detection requirements.
When selecting a suitable Safety Light Curtain, consider the following parameters:
| Selection Factor | Explanation |
|---|---|
| Protection Height | Determines the vertical detection area required for the machine |
| Optical Axis Pitch | Determines beam spacing and detection resolution |
| Detection Distance | Select according to emitter and receiver installation distance |
| Output Type | Choose NPN or PNP according to controller input |
| Signal Logic | Select NO or NC according to control requirements |
| Installation Environment | Consider humidity, dust, vibration and interference conditions |
Understanding Protection Height
The protection height of a Safety Light Curtain is determined by the number of optical beams and the optical axis pitch.
Example: DPR-1440-NPN-NC
Optical Axis Pitch: 40 mm
Calculation: (14 - 1) × 40 mm = 520 mm
Complete DPR Series Model Selection Table
The DAPPRA DPR Series Safety Light Curtain Area Sensor includes different configurations based on beam quantity, optical axis pitch, and protection height.
The complete DPR Series model selection chart is provided below as a technical reference.
DPR Series 40 mm Optical Axis Pitch Configuration
The DPR Series 40 mm optical axis pitch models are available with different beam quantities and protection heights. The DPR-1440-NPN-NC model uses NPN output.
| Model | Beam Quantity | Optical Axis Pitch | Protection Height | Total Height | Output Type | Signal Logic |
|---|---|---|---|---|---|---|
| DPR-0440-NPN-NC | 4 | 40 mm | 120 mm | 206 mm | NPN | NC |
| DPR-0640-NPN-NC | 6 | 40 mm | 200 mm | 286 mm | NPN | NC |
| DPR-0840-NPN-NC | 8 | 40 mm | 280 mm | 366 mm | NPN | NC |
| DPR-1040-NPN-NC | 10 | 40 mm | 360 mm | 446 mm | NPN | NC |
| DPR-1240-PNP-NC | 12 | 40 mm | 440 mm | 526 mm | PNP | NC |
| DPR-1440-NPN-NC | 14 | 40 mm | 520 mm | 606 mm | NPN | NC |
| DPR-1640-NPN-NC | 16 | 40 mm | 600 mm | 686 mm | NPN | NC |
Complete DPR Series Selection Chart
The complete selection table includes:
- 10 mm optical axis pitch models
- 20 mm optical axis pitch models
- 40 mm optical axis pitch models
- Different beam quantity options
- Corresponding protection height values
- DPR Series model numbers
NPN NC Output and Wiring
DPR-1440-NPN-NC Wiring
The DPR-1440-NPN-NC uses NPN NC output.
Signal Logic
| Condition | Signal |
|---|---|
| Normal beam transmission | 0V output (low level) |
| Beam interrupted | High impedance (no output) |
DPR-1440-NPN-NC SH30 WIRING DIAGRAM
Mechanical Dimensions
DPR-1440-NPN-NC Dimensions
- 520 mm protection height
- 606 mm total height
- 40 mm optical axis pitch
- 29 × 30 mm cross section
DPR-1440-NPN-NC SH30 MECHANICAL DIMENSION DRAWING
Installation Methods
The DPR-1440-NPN-NC Safety Light Curtain supports flexible installation methods according to different machine structures and protection requirements.
The sensor can be installed using:
- Standard Vertical Installation
- Side Installation
- Adjustable Bracket Installation
DPR-1440-NPN-NC Installation Methods
Standard Vertical Installation
The standard vertical installation method places the emitter and receiver vertically opposite each other to create a detection area.
Suitable for:
- CNC machines
- Press machines
- Machine entrances
- Safety protection areas
Side Installation
Side installation allows the sensor to be mounted according to machine structure limitations where standard mounting space is restricted.
Suitable for:
- Compact equipment
- Limited installation space
- Customized machine layouts
Adjustable Bracket Installation
The adjustable bracket installation method allows flexible positioning and alignment of the emitter and receiver.
Advantages:
- Easier alignment
- Flexible mounting angle adjustment
- Suitable for customized automation equipment
Industrial Applications
DPR-1440-NPN-NC Application Areas
The DAPPRA DPR-1440-NPN-NC Safety Light Curtain is designed for industrial automation equipment requiring reliable object detection and machine protection.
With multi-beam infrared detection, fast response time and industrial protection features, the DPR Series can be applied in various automated production environments.
Typical applications include:
- CNC machines
- Press and hydraulic machines
- Packaging machinery
- Conveyor systems
- Robot workcells
DPR-1440-NPN-NC Industrial Application Overview
CNC Machine Protection
The DPR-1440-NPN-NC can be installed around CNC machining equipment to create a detection area for machine monitoring and protection applications.
Typical equipment:
- CNC machining centers
- Milling machines
- Turning machines
Press Machine Protection
The multi-beam infrared detection area of DPR Series sensors can be used around industrial press and hydraulic equipment.
Typical applications:
- Hydraulic presses
- Punching machines
- Metal forming equipment
Packaging Machinery
DPR Series sensors support object detection applications in automated packaging equipment.
Typical applications:
- Packaging lines
- Filling machines
- Automatic assembly systems
Conveyor System Detection
The DPR-1440-NPN-NC can be integrated into conveyor automation systems for object detection and machine control applications.
Typical applications:
- Material handling systems
- Production conveyors
- Automated logistics equipment
Robot Workcell Protection
The DPR-1440-NPN-NC can be installed around industrial robot workcells to create a multi-beam infrared detection area.
Typical applications:
- Robotic assembly cells
- Automated manufacturing lines
- Robot peripheral areas
Industrial Environment & Safety Performance
Designed for Demanding Industrial Automation Environments
The DAPPRA DPR-1440-NPN-NC Safety Light Curtain is designed for demanding industrial automation environments where equipment may be exposed to humidity, water, oil contamination, mechanical vibration and electromagnetic interference.
The DPR Series provides reliable detection performance for industrial machine applications with:
- High humidity resistance
- Water and oil protection
- Anti-vibration design
- Anti-interference capability
- IP65 protection rating
The DPR-1440-NPN-NC is suitable for industrial equipment requiring stable operation in challenging manufacturing environments.
Industrial Environment Specification
| Parameter | Specification |
|---|---|
| Protection Rating | IP65 |
| Operating Temperature | -10°C to 55°C |
| Ambient Light Resistance | 10000 Lux |
| Environmental Features | Humidity Resistance / Oil Protection / Anti-Vibration / Anti-Interference |
Safety Light Curtain for Machine Protection
The DAPPRA DPR-1440-NPN-NC belongs to the Safety Light Curtain Area Sensor category for machine protection applications.
Unlike single-point photoelectric sensors, the DPR-1440-NPN-NC uses multiple infrared beams between the emitter and receiver to create a detection zone.
The sensor provides:
- Multi-beam infrared detection
- Fast response time <5 ms
- NPN NC output configuration
- Machine protection applications
- SIL safety performance certification
SIL Safety Certification
SIL Certified Safety Performance
The DAPPRA DPR-1440-NPN-NC Safety Light Curtain has achieved SIL certification through third-party testing and verification.
The SIL certification confirms that the product has been evaluated by an independent third-party testing organization according to functional safety requirements.
Safety Certification Information
| Safety Parameter | Specification |
|---|---|
| Safety Integrity Level | SIL |
| Certification Type | Third-party Safety Certification |
| Product Model | DPR-1440-NPN-NC |
| SKU | SH30 |
Safety & Compliance Certifications
DAPPRA DPR-1440-NPN-NC is supported by safety and compliance documentation including:
- SIL Safety Certification
- CE Certification
- FCC Certification
- RoHS Compliance
Safety Light Curtain vs Single-Point Photoelectric Sensor
| Feature | Safety Light Curtain | Single-Point Photoelectric Sensor |
|---|---|---|
| Detection method | Multiple infrared beams | Single optical detection point |
| Detection area | Multi-beam area | Single point |
| Beam quantity | Multiple (e.g., 14 beams) | Typically one detection beam |
| Typical use | Area detection and machine protection | Object presence / position detection |
| DPR Series | Yes | No |
Safety Light Curtain vs Standard Area Sensor
The terms Safety Light Curtain and Area Sensor are sometimes used interchangeably, but they serve distinct purposes in industrial automation.
A Safety Light Curtain is specifically designed for machine protection applications and typically includes safety certifications (such as SIL). An Area Sensor generally describes a multi-beam photoelectric detection device used for general object detection.
The DPR-1440-NPN-NC is positioned as a Safety Light Curtain Area Sensor, combining the detection capabilities of an area sensor with safety-rated performance for machine protection.
Safety Light Curtain Area Sensor for Machine Protection
The DPR-1440-NPN-NC has obtained SIL Functional Safety Certification through third-party testing and certification. The SIL certification should be considered together with the product's documented safety characteristics and intended machine-protection applications.
Parameter Dictionary
Optical Axis Pitch
The distance between adjacent optical detection beams.
DPR-1440-NPN-NC: 40 mm
Beam Quantity
The number of optical beams used to form the detection field.
DPR-1440-NPN-NC: 14 beams
Protection Height
The vertical detection height created by the optical beam arrangement.
DPR-1440-NPN-NC: 520 mm
Total Height
The overall physical height of the sensor housing including end caps.
DPR-1440-NPN-NC: 606 mm
Detection Distance
The distance between the emitter and receiver within which the sensor operates.
DPR-1440-NPN-NC: 0.2–3 m
Response Time
The time required for the sensor to respond to a detected beam interruption.
DPR-1440-NPN-NC: <5 ms
NPN Output
A transistor output configuration commonly used with sinking inputs of PLCs and industrial control systems.
NC Signal Logic
Normally Closed signal logic. For the specified DPR-1440-NPN-NC configuration, normal beam transmission produces the specified 0V signal condition, while beam interruption removes the output.
DAPPRA Automation — Industrial Sensor Manufacturer
DAPPRA Automation is an industrial automation manufacturer and platform providing industrial control components, sensors, drives and supporting components for automation applications.
The DPR Series Safety Light Curtain is manufactured by DAPPRA's own production facility, supporting consistent product quality control and customized production requirements.
OEM & ODM Services
DAPPRA provides OEM and ODM manufacturing services based on customer designs, specifications or samples.
OEM & ODM support includes:
- Product customization
- Manufacturing based on customer requirements
- Customized industrial automation solutions
Global Service Markets
DAPPRA provides industrial automation products and OEM/ODM services for customers in:
- Indonesia
- Vietnam
- Russia
Factory Production Capability
Technical Resources
Download technical documents for the DAPPRA DPR-1440-NPN-NC Safety Light Curtain, including datasheet, CAD drawing and installation guide.
DPR-1440-NPN-NC Datasheet
Technical specification document including product parameters, working principle, wiring information, dimensions, certifications and application details.
DPR-1440-NPN-NC Installation Guide
Installation reference showing mounting methods, vertical installation, side installation and adjustable bracket installation.
DPR-1440-NPN-NC CAD Drawing
Mechanical drawing resource for engineers, including product dimensions and installation reference for machine integration.
Engineering FAQ
The following FAQ provides technical information about the DAPPRA DPR-1440-NPN-NC Safety Light Curtain, including product specifications, output configuration, applications, environmental performance and certification information.
The DAPPRA DPR-1440-NPN-NC is a DPR Series Safety Light Curtain Area Sensor designed for machine protection and industrial automation applications.
The product features:
| Parameter | Specification |
|---|---|
| Product Series | DPR Series |
| Model | DPR-1440-NPN-NC |
| SKU | SH30 |
| Detection Method | Through Beam Infrared Detection |
| Beam Quantity | 14 Beams |
| Optical Axis Pitch | 40 mm |
| Protection Height | 520 mm |
| Output Type | NPN |
| Signal Logic | NC |
The SKU of the DPR-1440-NPN-NC is: SH30
The model number represents the product configuration:
| Code | Description |
|---|---|
| DPR | DAPPRA DPR Series |
| 14 | 14 Optical Beams |
| 40 | 40 mm Optical Axis Pitch |
| NPN | NPN Output |
| NC | Normally Closed Signal Logic |
The DPR-1440-NPN-NC uses: 14 infrared optical beams
The optical axis pitch is: 40 mm
The optical axis pitch represents the distance between adjacent infrared beams.
The DPR-1440-NPN-NC provides: 520 mm protection height
The calculation is:
(14 - 1) × 40 mm = 520 mm
The total height of the DPR-1440-NPN-NC is: 606 mm
This includes the housing and end caps.
The DPR-1440-NPN-NC uses: Through-beam infrared detection
The system consists of:
- Infrared emitter
- Infrared receiver
- Detection area
- Output signal interface
The response time is: <5 ms
The DPR-1440-NPN-NC has a detection distance of 0.2–3 m.
The DPR-1440-NPN-NC has an IP65 protection rating, making it suitable for industrial environments where protection against dust and water jets is required.
The operating temperature range of the DPR-1440-NPN-NC is -10°C to +55°C.
The DPR-1440-NPN-NC uses: NPN NC output configuration
NPN output (sinking) switches the output to 0V when active, commonly used with PLC sinking inputs. PNP output (sourcing) switches the output to +V when active.
The DPR-1440-NPN-NC uses NPN output, which is compatible with NPN input modules commonly found in Asian and European industrial control systems.
NC means: Normally Closed signal logic
For the DPR-1440-NPN-NC configuration:
| Condition | Output Status |
|---|---|
| Normal beam condition | 0V signal output (low level) |
| Beam interruption | High impedance (no output) |
The specified power supply is: DC24V ±20%
The DPR-1440-NPN-NC should be connected according to the official DAPPRA wiring diagram.
The wiring configuration includes:
- DC24V power supply
- Emitter and receiver connection
- M12 connector interface
- NPN NC signal output
For detailed wiring information, refer to: DPR-1440-NPN-NC Wiring Diagram
Yes. The NPN NC output of the DPR-1440-NPN-NC can be connected to compatible PLC input circuits and industrial control systems. Check the wiring diagram and PLC input specifications before installation.
Yes. The DPR Series is designed for industrial environments requiring:
- High humidity resistance
- Water protection
- Oil contamination resistance
- IP65 protection
Yes. The DPR Series is designed for industrial automation environments where oil contamination may occur.
Yes. The DPR Series incorporates anti-vibration design features for industrial machinery applications.
Yes. The DPR Series is designed with interference-resistant capability for industrial automation environments.
Yes. The DPR-1440-NPN-NC can be applied to CNC machine protection and detection applications.
Yes. The DPR Series can be used for industrial press and hydraulic machine applications.
Yes. The DPR Series is suitable for automated packaging machinery requiring multi-beam object detection.
Yes. The DPR Series can be integrated into conveyor automation systems for object detection and machine control applications.
Yes. The DPR Series can be applied for robot peripheral protection and automated workcell detection.
The DPR-1440-NPN-NC can be used for industrial detection and machine protection applications, including CNC machines, press machines, conveyors, packaging equipment, and automated production lines.
Yes. The DPR-1440-NPN-NC has obtained SIL Functional Safety Certification through third-party testing and certification.
Certification information:
| Parameter | Specification |
|---|---|
| Safety Level | SIL |
| Certification Type | Third-party Certification |
| Product Model | DPR-1440-NPN-NC |
| SKU | SH30 |
Browse the certificate: Browse SIL Certificate section →
DAPPRA provides certification documentation including:
- SIL Functional Safety Certification
- CE Certification
- FCC Certification
- RoHS Compliance
Select the DPR Series model according to the required beam quantity, optical axis pitch, protection height, output configuration, and sensing distance. The DPR-1440-NPN-NC provides 14 beams, 40 mm optical axis pitch, 520 mm protection height, and NPN NC output.
The protection height is calculated using: Protection Height = (Beam Quantity - 1) × Optical Axis Pitch
For DPR-1440-NPN-NC: (14 - 1) × 40 mm = 520 mm
For selection, ensure the protection height covers the full area requiring detection on your machine.
The minimum safety distance depends on your machine's stopping time, the sensor's response time (<5 ms), and applicable safety standards. A general formula is: Safety Distance = Stopping Distance + Response Distance + Safety Margin
Refer to the installation guide or consult with a DAPPRA engineer for specific calculations based on your application.
The DPR-1440-NPN-NC is a safety-rated light curtain with SIL certification. Type 2 and Type 4 light curtains refer to categories defined in IEC 61496. The DPR Series is designed to meet the performance requirements for machine protection applications. For specific type classification, please refer to the product datasheet or contact DAPPRA engineering support.
The DPR Series can be integrated into conveyor systems for object detection and machine control. For muting applications (temporary suspension of safety function for material passage), additional external muting sensors and a muting logic controller would typically be required. Consult with DAPPRA engineering for your specific conveyor application requirements.
The DPR-1440-NPN-NC has an ambient light resistance of 10000 Lux, ensuring reliable operation even in brightly lit industrial environments.
Align the emitter and receiver by ensuring they are positioned directly opposite each other at the same height. Use the alignment indicator LEDs and a level tool to achieve proper alignment. The DPR Series includes alignment indicators to assist with installation. Refer to the installation guide for detailed procedures.
The cross-section of the DPR-1440-NPN-NC is 29 × 30 mm.
Yes. DAPPRA offers customization options including cable lengths, connector types, and other OEM specifications. Contact DAPPRA Automation for custom requirements.
Need Technical Support or a Quote?
Contact DAPPRA Automation for engineering assistance, pricing, or OEM/ODM inquiries.
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