Sick RT-B2221 Proximity Sensor, Class 2 10-30VDC

Compact industrial photoelectric proximity sensor designed for reliable object detection in automation environments. Built with a rugged housing, IP67 protection, and Class 2 low‑voltage operation, it provides stable switching performance in harsh conditions. Technical Specifications Model: RT‑B2221 Part Number: 1003175 Operating Voltage: 10–30 VDC, Class 2 Output Current Rating: ≤ 100 mA Operating Temperature: –? to +60°C (label specifies max 60°C; lower limit standard is typically –25°C for this series) Sensor Type: Photoelectric proximity sensor (retro‑reflective type, based on RT series) Switching Output: Likely NPN/PNP depending on variant (RT‑B models commonly PNP light‑on) Connector Type: M12, 4‑pin male Protection Rating: IP67 Housing Material: Industrial‑grade polymer (blue Sick housing) Optical Window: Red lens (visible on front housing) Mounting Style: Through‑hole or bracket mounting, two mounting holes Certifications: CE, UL, CSA (symbols shown on nameplate) Electrical Protection: Class 2 circuit Manufacturer: SICK AG Manufacture/Assembly Location: Assembled in U.S.A. Please review pictures carefully and let us know if you have any questions!