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DAPPRA DPR-0640-NPN-NC Industrial Area Sensor Safety Light Curtain CAD Drawing
✦ CAD Drawing
DPR-0640-NPN-NC CAD Drawing, Selection & Comparison Guide
A complete reference for the DAPPRA DPR-0640-NPN-NC — mechanical dimensions, product category comparison, resolution differences and model selection guidance.
At a Glance
DPR-0640-NPN-NC
Beams6
Pitch40 mm
Protection Height200 mm
Total Height286 mm
Housing29 × 30 mm
MountingSide Bracket
Mechanical Dimensions
Model Comparison
Resolution Differences
Mounting Layout
General Information
The DAPPRA DPR-0640-NPN-NC is a 6-beam Industrial Area Sensor and Safety Light Curtain with a 40 mm optical axis pitch and a 200 mm protection height. This article provides the mechanical dimensions, selection guidance and category comparison for engineers evaluating the DPR-0640-NPN-NC.
Mechanical Reference
DPR-0640-NPN-NC · 6 Beams · 200 mm Protection · 286 mm Total
View full mechanical drawings, CAD reference and mounting layout.
View DPR-0640-NPN-NC Product Page →
Mechanical Dimensions
| Parameter | Value |
|---|---|
| Model | DPR-0640-NPN-NC |
| SKU | SD73 |
| Beam Quantity | 6 Beams |
| Optical Axis Pitch | 40 mm |
| Protection Height | 200 mm |
| Total Height | 286 mm |
| Housing Cross Section | 29 × 30 mm |
| Mounting Type | Side bracket mounting |
| Connection | M12 industrial connector |
Mechanical dimensions of the DAPPRA DPR-0640-NPN-NC Industrial Area Sensor
Light Curtain vs Photoelectric Sensor
A safety light curtain uses multiple parallel beams to create a protective sensing field, and is designed for personnel and machine protection with defined safety functions (e.g., SIL 2). A photoelectric sensor typically uses a single beam or a small number of beams for object detection and does not carry a safety certification.
The DPR-0640-NPN-NC is a safety light curtain with 6 parallel beams and SIL 2
certification, not a single-beam photoelectric sensor.
When to Use a Safety Light Curtain Instead of an Area Sensor
Use a safety light curtain when the application requires personnel protection and the machine risk assessment demands a defined safety function (e.g., SIL 2). Use an area sensor when the application is primarily object detection, counting or area monitoring without a safety-related function.
- Safety light curtain — Personnel protection, machine guarding, E-stop integration, SIL-rated
- Area sensor — Object detection, counting, presence/absence, general automation
Resolution Comparison: 10 mm, 20 mm, 30 mm and 40 mm
| Resolution | Detection Capability | Typical Application |
|---|---|---|
| 10 mm | Finger detection | High-precision hand/finger protection |
| 20 mm | Hand detection | General machine guarding |
| 30 mm | Hand/arm detection | Medium-resolution guarding |
| 40 mm | Body/arm detection | Area sensing and object detection (DPR-0640-NPN-NC) |
Machine Access Protection
For machine access protection, the appropriate sensor depends on the required resolution and protection height. The DPR-0640-NPN-NC with 6 beams and a 200 mm protection height is suitable for machine openings requiring body or arm detection. For hand or finger detection, a higher-resolution model with 10 mm or 20 mm pitch should be used.
Model Selection: 20 mm Resolution
If a 20 mm resolution safety light curtain is required, the DPR Series provides models with 20 mm optical axis pitch, such as the DPR-0820-NPN-NC (8 beams), DPR-1220-NPN-NC (12 beams) and DPR-1620-NPN-NC (16 beams). The protection height depends on the beam quantity.
Full Selection Guide
DPR Series Model Selection & Comparison Chart
Compare beam quantities, pitches, protection heights and output configurations across the DPR Series.
View DPR-0640-NPN-NC Product Page →
Mounting layout for the DPR-0640-NPN-NC Area Sensor
Frequently Asked Questions
What is the difference between a light curtain and a photoelectric sensor?
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A light curtain uses multiple parallel beams to create a protective sensing field and is designed for personnel and machine protection with defined safety functions (e.g., SIL 2). A photoelectric sensor typically uses a single beam or a small number of beams for object detection and does not carry a safety certification. The DPR-0640-NPN-NC is a safety light curtain with 6 parallel beams and SIL 2 certification.
When should I use a safety light curtain instead of an area sensor?
+
Use a safety light curtain when the application requires personnel protection and the machine risk assessment demands a defined safety function (e.g., SIL 2). Use an area sensor when the application is primarily object detection, counting or area monitoring without a safety-related function.
What is the difference between 10mm, 20mm, 30mm and 40mm resolution or beam spacing?
+
The resolution determines the minimum detectable object size: 10 mm detects fingers, 20 mm detects hands, 30 mm detects hands/arms, and 40 mm detects body/arm. The DPR-0640-NPN-NC uses 40 mm spacing with 6 beams, providing a 200 mm protection height suitable for body and arm detection.
Which sensor should I use for machine access protection?
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For machine access protection, the appropriate sensor depends on the required resolution and protection height. The DPR-0640-NPN-NC with 6 beams and a 200 mm protection height is suitable for machine openings requiring body or arm detection. For hand or finger detection, a higher-resolution model with 10 mm or 20 mm pitch should be used.
I need a 20mm resolution safety light curtain. Which model should I choose?
+
If a 20 mm resolution safety light curtain is required, the DPR Series provides models with 20 mm optical axis pitch, such as the DPR-0820-NPN-NC (8 beams), DPR-1220-NPN-NC (12 beams) and DPR-1620-NPN-NC (16 beams). The protection height depends on the beam quantity.
Need help selecting the right DPR Series model?
Our engineers can assist with model selection, resolution comparison, mechanical layout and technical documentation for the DPR Series Industrial Area Sensor and Safety Light Curtain.
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