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CGF50‑R4NB – Retro-Reflective Photoelectric Sensor (4 m Range, NPN-NC)

CGF50‑R4NB – Retro-Reflective Photoelectric Sensor (4 m Range, NPN-NC)

GH₵500.00 GH₵700.00

The CGF50‑R4NB is a high-precision retro-reflective photoelectric sensor capable of detecting objects up to 4 meters away using a reflector. It is designed for industrial automation tasks that demand reliable, long-range detection with minimal wiring and robust performance.

This model features a 3-wire NPN Normally Closed (NC) output, making it suitable for safety-sensitive applications or systems that require signal continuity when no object is detected.


✅ Key Features

  • Detection Mode: Retro-reflective – requires a reflector to detect object interruptions

  • Sensing Range: Up to 4 meters (with standard reflector)

  • Output Type: NPN, Normally Closed (NC)

  • Fast Switching: Response time < 8.2 ms

  • Indicator: Red LED for output status

  • Protection: Reverse polarity and surge protection built-in

  • Enclosure Rating: IP65 – dust and water resistant

  • Construction: Rugged 50 × 50 mm ABS housing with clear optical face


🔌 Electrical Specifications

Parameter Specification
Supply Voltage 10 – 30 V DC
Output Type NPN, Normally Closed
Output Current Max. 200 mA
Current Consumption ~25 mA
Residual Voltage ≤ 1 V
Cable Length ~1.5 m, 3-core, PVC (AWG 22)

🌡️ Environmental & Mechanical Specs

Parameter Specification
Operating Temp Range –15 °C to +55 °C
Shock Resistance 50 g (3× per axis)
Vibration Resistance 1 mm at 10–55 Hz
Housing Material ABS body, PMMA lens
Protection Rating IP65

📦 Typical Applications

  • High-speed object interruption detection

  • Conveyor line presence sensors with safety logic

  • Entry/exit detection in access systems

  • Packaging equipment feedback loops

  • NC-based logic systems that require fail-detection

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