42EF-R2MNBT-F4

Overview of Allen Bradley 42EF-R2MNBT-F4

The Allen Bradley 42EF-R2MNBT-F4 PhotoSwitch RightSight is a compact, fixed general-purpose photoelectric sensor designed for demanding industrial environments. This model uses a visible red sensing beam and features a right-angle, 18 mm cylindrical housing, which allows for simple integration into tight spaces or complex machine layouts. With a sensing range of up to 8 meters and a fast 1 ms response time, the 42EF-R2MNBT-F4 delivers reliable detection for both light and dark operate applications. Its 4-pin Micro QD connector ensures quick, secure installation and connection to control systems. The sensor is engineered with an IP67/IP69K enclosure rating and NEMA 4X/6P protection, making it suitable for harsh environments where moisture and debris resistance are critical. The RightSight platform is valued for its high visibility LED indicators, easy alignment, and robust performance in automation and manufacturing applications.

Key Features of Allen Bradley 42EF-R2MNBT-F4

• Visible red sensing beam for easy alignment
• Up to 8 m sensing range (transmitted beam receiver type)
• Right-angle 18 mm form factor for flexible installation
• 1 ms response time ideal for high-speed applications
• Light/dark operate modes for versatile detection
• 4-pin Micro QD connector simplifies wiring and maintenance
• IP67 and IP69K environmental protection, NEMA 4X/6P rugged enclosure
• Ultra-bright 360° LED status indicators for visibility during setup and operation

Technical Specs of 42EF-R2MNBT-F4

• Sensing principle: Transmitted beam (receiver)
• Sensing range: 8 meters
• Supply voltage: 10.8–30 VDC
• Current draw: 15 mA
• Output: NPN, light/dark operate
• Connector: 4-pin DC M12 pigtail (Micro QD)
• Response time: 1 ms
• Enclosure: 18 mm (diameter) right-angle housing
• Protection: IP67, IP69K, NEMA 4X/6P
• Dimensions: 27 mm (W) × 46.7 mm (H) × 34.5 mm (L)
• Weight: ~0.001 lb

Applications / Use Case

The Allen Bradley 42EF-R2MNBT-F4 is widely used for reliable object detection in automated assembly lines, materials handling, and packaging operations. Its compact right-angle design allows mounting in constrained areas on conveyors, robotic cells, or machinery where space is limited but performance requirements are high. The 8 meter sensing range, combined with a high immunity to electrical noise and environmental contaminants, makes it suitable for detecting products, monitoring presence or absence, and controlling gates or ejectors in production environments. The IP67/IP69K enclosure ensures long-term durability in food and beverage, automotive, and general manufacturing facilities. Maintenance crews appreciate the sensor's visible status LEDs for quick troubleshooting, reducing downtime and supporting efficient operations.

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