HT46C4P-M12 Photoelectric Sensor with Background Suppression IP67 & IP69K Protection and PNP Switching Output

HT46C4P‑M12 Photoelectric Sensor Switch, Diffuse Reflection Sensor With Background Suppression

HT46C4P‑M12 is a high‑performance diffuse reflection photoelectric sensor with background suppression, widely applied for elevator and industrial position detection. It adopts red‑light LED light source, equipped with M12 4‑pin plug‑in connector for fast wiring and replacement. The robust PC‑ABS plastic housing reaches IP67 & IP69K protection grade, resisting dust, splash and mechanical vibration. It features anti‑reverse‑polarity and short‑circuit protection, stable PNP switching output, fast response time, effectively filter background object interference and avoid false triggering. Compact rectangular structure supports flexible mounting. It is a reliable replacement unit for elevator modernization, escalator maintenance and automated equipment repair projects.

Functions

1. Detects target objects reliably with background‑suppression function, eliminates interference from rear background surfaces to prevent mis‑detection.
2. Delivers PNP switching signal feedback to elevator controller or PLC, completes position sensing for elevator doors, escalators and automation equipment.
3. M12 plug‑and‑play design simplifies on‑site installation, disassembly and component replacement.
4. Built‑in circuit protection defends against reverse connection and short‑circuit damage, enhances long‑term operating stability.

Rich Content (Working Environment, Parameters & Application Notes)

Operating voltage: DC10‑30V; Response time ≤2ms; Switching frequency up to 250Hz. Working temperature:‑25℃ ~ +55℃; Relative humidity ≤95%, non‑condensing. Protection class: IP67, IP69K; Keep away from strong corrosive gas, heavy oil contamination and direct strong light irradiation. Suitable for elevator car‑door detection, escalator object monitoring and general industrial automated production lines. Regular cleaning for lens surface is required during routine maintenance; dirty lens will cause sensing failure. Direct replacement for damaged original sensor without extra modification.