Overview
The Allen-Bradley 871L-XCB40S40 is a plastic limit switch-style inductive proximity sensor designed as a non-contact alternative to traditional NEMA electromechanical limit switches. With a 40mm sensing distance and 2-wire connection, it detects ferrous metallic targets reliably in industrial automation, motion control, and machine safety systems without requiring physical contact.
Key Features
- Non-contact detection: Eliminates mechanical wear and extends component lifespan
- 40mm sensing distance: Reliable ferrous metal detection at consistent range
- Dual-output configuration: 1NO/1NC (normally open/normally closed) contacts for flexible logic control
- Wide voltage range: 20–250 VAC/VDC operation for global installation flexibility
- Compact form factor: Plastic limit switch housing fits standard mounting locations
- Industrial-grade construction: NEMA 3/4/6/12/13, IP65 rated for washdown and harsh environments
Technical Specifications
- Part Number: 871L-XCB40S40
- Series: 871L
- Sensing Method: Inductive
- Sensing Distance: 40 mm
- Supply Voltage: 20–250 VAC/VDC
- Output Current: 0.5 A (500 mA) maximum load
- Contact Configuration: 1NO / 1NC (selectable)
- Wiring: 2-wire
- Connection Type: 1/2-14 NPT Conduit or Quick-Disconnect
- Shielding: Unshielded
- Dimensions: 40 × 40 × 120 mm
- Operating Temperature: −13 to +158°F (−10 to +70°C)
