Schmersal ZR 336-11Z-M20 Safety Relay Modules

Schmersal ZR 336-11Z‑M20 is a compact safety limit switch in a thermoplastic, double‑insulated housing designed for safety‑related control circuits. It features a snap‑action mechanism with constant contact force up to the switching point and a 1 NO/1 NC contact arrangement, making it suitable for interlock and guarding applications in industrial machinery. The unit provides a single cable entry M 20 x 1.5 and adheres to EN 50041, ensuring interchangeability with Schmersal’s actuator family, with actuator heads that can be repositioned by 4 x 90°. The housing is oil‑ and petrol‑resistant, supporting reliable operation in harsh environments. This specific configuration is identified by Artikelnummer 151156135 and carries safety certifications CCC and cULus, reflecting compliance with international standards for safety devices. The ZR 336‑11Z‑M20 integrates into control systems where robust, field‑configurable actuation and dependable snap‑action switching are required, offering flexible mounting options and long‑term performance within the Schmersal ZR safety switch portfolio.