Allen‑Bradley – 42CM‑R8MPB‑D4 – 18 mm Metal Laser Transmitted‑Beam Receiver, PNP

The Allen‑Bradley 42CM‑R8MPB‑D4 is a rugged, industrial-grade 18 mm cylindrical photoelectric sensor that functions as a transported-beam receiver. It features a Class 1 laser light source, no sensitivity adjustment (fixed), and a fast 0.5 ms response time. With a PNP output and M12 quick-disconnect connector, it reliably detects objects up to 50 m away. Perfect for long-range automation, object detection, and safety applications.  

Key Features:

• Model: 42CM‑R8MPB‑D4

• Function: Transmitted-beam receiver (requires separate emitter)  

• Light Source: Class 1 laser, fixed sensitivity

• Output: PNP, complementary Light‑On/Dark‑On logic

• Response Time: 0.5 ms  

• Sensing Distance: Up to ~50 m  

• Connection: 4‑pin M12 DC micro quick-disconnect  

• Load Capacity: 100 mA max  

• Housing: Robust metal (nickel-plated brass), IP67 sealed  

• Protection: Reverse-polarity, short-circuit, false-pulse immunity  

• Indicators: Bi-color LED for power and output state