Allen-Bradley 871P-NW35BP40LD4 is a four-wire DC inductive proximity sensor from Rockwell Automation with a 40 mm head and a 35 mm sensing distance, featuring a PNP (source) output and offering cube or rectangular housing. It employs Weld Field Immune construction and provides both normally open and normally closed outputs, terminating with a Micro Quick Disconnect (QD) DC connector for field wiring. This 871P-series device detects metal targets without contact in industrial automation applications, making it suitable for use in welding environments where electromagnetic interference may affect less rugged sensors.
