What it is
The Square D XUB4BPBNM12 is a fixed diffuse-mode photoelectric sensor in the Telemecanique XUB tubular family — an 18 mm threaded barrel in nickel-plated brass, terminated on a 4-pin micro connector and rated for 12-24 VDC operation across an industry-standard diffuse-reflective sensing class. It carries UL, CSA, and CE approvals and is sealed to IP67 with NEMA 4X/12 enclosure rating, so it drops directly into washdown, outdoor conveyor, and food-and-beverance panel-side mounting without a separate shroud.
Performance envelope
The diffuse sensing range tops out at 4 inches from the front face — short by retroreflective standards but appropriate for object detection on a conveyor or part-present check at a fixture, where the 1 millisecond on/off response keeps up with line speeds. An operating frequency of 500 Hz sits behind that response time, and the infrared beam is invisible to the eye but picked up cleanly off most production parts, with a yellow LED indicating output state on the housing for the panel-builder during commissioning.
Output and wiring
Wiring is 3 conductors through the 4-pin micro connector, switching as a PNP normally-closed output into a 100 milliampere load — directly compatible with the sourcing inputs common on modern PLCs without an interface relay in between. With a 12-24 VDC supply range, the same sensor can ride a 24 VDC PLC backplane or a stand-alone 12 VDC machine supply; a 100 mA rating means it can drive a small solenoid or indicator directly but is not sized to switch motor contactor coils.
Mechanical and environment
The 18 mm threaded barrel takes a standard through-hole mount or bracket, with front sensing and nickel-plated brass body that tolerates incidental contact and chemical cleaning in process cells. Operating temperature runs -13 to 131 Deg F per the spec table, covering cold storage and cabinet-side mounting without published derating.
Sourcing posture
Lifecycle is recorded as current, so the XUB4BPBNM12 is specified into the BOM against an active channel and quoted to order; no last-time-buy window is on record today.