CDD Infrared Photoelectric Sensor NPN PNP Diffuse Proximity Switch
CDD Infrared Photoelectric Sensor NPN PNP Diffuse Proximity Switch
CDD-11/40/80 Infrared Photoelectric Proximity Switch – Reliable Automation Sensing
The CKCTINNER CDD Series Infrared Photoelectric Sensor is a high-performance optical proximity switch designed for demanding industrial automation applications. Available in three detection range variants (CDD-11, CDD-40, CDD-80), this diffuse-reflection sensor supports both NPN and PNP output configurations, making it compatible with virtually any PLC, controller, or automation system operating on a 10–30V DC supply.
Built from durable alloy construction and carrying CE and CCC certifications, this sensor delivers precise, non-contact object detection for conveyor lines, assembly machines, packaging equipment, and more.
Key Features
- Diffuse Reflection Technology: Detects objects without requiring a separate reflector — emitter and receiver are housed in one compact unit.
- NPN & PNP Output: Flexible signal output options for compatibility with virtually any automation controller or PLC.
- Wide Supply Voltage: Operates on 10–30V DC, suitable for most industrial power supplies.
- Multiple Models: CDD-11, CDD-40, and CDD-80 offer different sensing ranges to match your application requirements.
- Alloy Housing: Rugged metallic construction for durability in factory and industrial environments.
- CE & CCC Certified: Meets international safety and electromagnetic compatibility standards.
- Infrared Light Source: Invisible infrared beam ensures accurate detection without interference from ambient visible light.
Technical Specifications
| Brand | CKCTINNER |
| Model | CDD-11 / CDD-40 / CDD-80 |
| Switch Type | Photoelectric (Diffuse Reflection) |
| Output Type | NPN / PNP |
| Supply Voltage | 10–30V DC |
| Housing Material | Alloy |
| Certification | CE, CCC |
| Country of Origin | Made in Mainland China |
Typical Applications
- Conveyor belt object detection & counting
- Packaging and labelling machine automation
- Assembly line part presence verification
- Industrial robotic systems
- Access control and door automation
- Filling and bottling machinery
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Frequently Asked Questions
Q: What is the difference between the CDD-11, CDD-40, and CDD-80 models?
A: The numbers in each model name correspond to different detection (sensing) ranges. The CDD-11 offers a shorter range, the CDD-40 a medium range, and the CDD-80 a longer detection distance. Choose the model that best suits the distance between the sensor and the objects you need to detect in your automation setup.
Q: Does this photoelectric sensor work with both NPN and PNP PLCs?
A: Yes. The CDD series is available in both NPN (sinking) and PNP (sourcing) output configurations, making it compatible with the vast majority of PLCs and industrial automation controllers operating on a 10–30V DC supply.
Q: Is a separate reflector required for this sensor to work?
A: No. This sensor uses diffuse reflection technology, which means both the infrared emitter and the receiver are contained within the same housing unit. It detects objects directly when they reflect the infrared beam back to the sensor — no separate reflector or receiver is needed.
Q: Is this sensor suitable for outdoor or harsh industrial environments?
A: The alloy housing provides solid durability for factory and industrial environments. Please verify the specific IP (ingress protection) rating of the model you select to ensure it meets the requirements of your particular installation environment.