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DAPPRA DPR-1240-NPN-NC Safety Light Curtain Area Sensor Datasheet
DAPPRA Automation
Technical Datasheet
DPR-1240-NPN-NC
Safety Light Curtain Area Sensor · 440 mm Protection Height
DPR-1240-NPN-NC Safety Light Curtain Area Sensor
12 Beams · 40 mm Pitch · 440 mm Protection Height · NPN NC · IP65
⭐ Featured Product · DPR-1240-NPN-NC
12 beams · 40 mm pitch · 440 mm protection height · NPN NC · IP65 · SIL Certified
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The DAPPRA DPR-1240-NPN-NC is a light curtain sensor designed for industrial machine protection and area detection applications. In the Indonesian market, products in this category may be commonly referred to as either “Safety Light Curtain” or “Area Sensor”, depending on the application and user terminology.
Product Description
The DAPPRA DPR-1240-NPN-NC is a Safety Light Curtain and Area Sensor from the DPR Series, designed for industrial automation equipment requiring reliable multi-beam object detection and machine protection.
The DPR-1240-NPN-NC uses through-beam infrared detection technology with a separate emitter and receiver. With 12 optical beams, a 40 mm optical axis pitch, and a 440 mm protection height (526 mm total height), it provides stable detection performance for industrial applications.
Key Features
- 12 parallel infrared beams
- 40 mm optical axis pitch
- 440 mm protection height / 526 mm total height
- NPN NC output configuration
- DC24V power supply
- Detection distance up to 3 m
- IP65 protection rating
- Oil-resistant design
- Anti-vibration and anti-interference design
- SIL functional safety certification
SIL
CE
FCC
RoHS
IP65
Product Identity
| Parameter | Specification |
|---|---|
| Brand | DAPPRA |
| Manufacturer | DAPPRA Automation |
| Product Series | DPR Series |
| Model | DPR-1240-NPN-NC |
| SKU | SH29 |
| Product Category | Safety Light Curtain / Area Sensor |
| Detection Method | Through Beam Infrared Detection |
| Beam Configuration | Parallel Beam |
| Optical Axis Quantity | 12 Beams |
| Optical Axis Pitch | 40 mm |
| Output Type | NPN |
| Signal Logic | NC (Normally Closed) |
Technical Specifications
| Specification | Value |
|---|---|
| Model | DPR-1240-NPN-NC |
| SKU | SH29 |
| Series | DPR Series |
| Detection Method | Through Beam Infrared Detection |
| Beam Configuration | Parallel Beam |
| Optical Axis Quantity | 12 beams |
| Optical Axis Pitch | 40 mm |
| Protection Height | 440 mm |
| Total Height (including end caps) | 526 mm |
| Maximum Detection Distance | 3 m |
| Power Supply | DC24V ±20% |
| Response Time | <5 ms |
| Output Type | NPN |
| Signal Logic | NC (Normally Closed) |
| Connector | M12 Cable |
| Output Current | ≤200 mA |
| Power Consumption | <5 W |
| Cross Section Size | 29 × 30 mm |
| Protection Rating | IP65 |
| Housing Material | Aluminum Alloy |
| Operating Temperature | -10°C to 55°C |
| Operating Humidity | Relative Humidity <85% at 20°C |
| Ambient Light Resistance | 10000 Lux (incident angle >5°) |
Model Number Explanation
| Code | Meaning |
|---|---|
| DPR | DAPPRA DPR Series |
| 12 | 12 Optical Beams |
| 40 | 40 mm Optical Axis Pitch |
| NPN | NPN Output Type |
| NC | Normally Closed Signal Logic |
Protection Height Calculation
Protection Height = (Beam Quantity − 1) × Optical Axis Pitch
(12 − 1) × 40 mm = 440 mm
Total Height: 526 mm (including end caps)
NPN NC Signal Logic
| Detection Condition | Output Status |
|---|---|
| Normal beam transmission (no object) | 0V (low level) — Output active |
| Beam interrupted (object detected) | High impedance — Output inactive |
Industrial Applications
Typical application areas include:
- CNC Machines
- Press and Hydraulic Machinery
- Packaging Machinery
- Conveyor Systems
- Robot Workcells
- Automated Assembly Equipment
- Shearing and Cutting Machinery
- Stamping Machinery
- Woodworking Machinery
- Welding Production Lines
- Vertical Parking Systems
- Falling Object Detection Applications
Safety & Compliance
The DPR-1240-NPN-NC is supported by functional safety and product compliance documentation, including SIL Certification, CE, FCC, and RoHS compliance.
Standard Product Package
- 1 × Emitter
- 1 × Receiver
- 2 × Connecting cables (M12)
- Standard mounting accessories
Frequently Asked Questions
What is the DAPPRA DPR-1240-NPN-NC?
+
The DAPPRA DPR-1240-NPN-NC is a DPR Series Safety Light Curtain / Area Sensor designed for multi-beam infrared detection, machine protection and industrial automation applications. It provides 12 infrared beams, 40 mm optical axis pitch, 440 mm protection height, 526 mm total height and NPN NC output.
Are Safety Light Curtain and Area Sensor the same?
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Not necessarily. In the Indonesian industrial automation market, the terms “Safety Light Curtain” and “Area Sensor” are sometimes used to describe similar light-beam sensing products. However, they should not automatically be considered identical. The correct choice depends on the required safety function, resolution, application, output configuration, and applicable safety standards.
What is the difference between a Safety Light Curtain and an Area Sensor?
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A Safety Light Curtain is generally associated with machine safety and personnel protection, while Area Sensor is commonly used as a broader term for multi-beam area detection. For DPR-1240-NPN-NC, the product is presented as a Safety Light Curtain / Area Sensor because it provides multi-beam infrared detection and is positioned for machine protection and industrial automation applications.
How many beams does the DPR-1240-NPN-NC have?
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The DPR-1240-NPN-NC has 12 infrared optical beams.
What is the protection height of the DPR-1240-NPN-NC?
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The protection height is 440 mm. Calculation: (12 − 1) × 40 mm = 440 mm.
Is the DPR-1240-NPN-NC suitable for a machine opening of about 440 mm?
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DPR-1240-NPN-NC provides a 440 mm protection height. Whether it is suitable for a specific machine opening depends on the actual machine design, required detection coverage, installation position and applicable safety requirements.
Can the DPR-1240-NPN-NC be connected to a PLC?
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Yes. The NPN output can be connected to compatible PLC input circuits. Verify the PLC input specifications and wiring requirements before installation.
What certifications does the DPR-1240-NPN-NC have?
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The product documentation includes SIL Safety Certification, CE Certification, FCC Certification and RoHS Compliance.
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