Used condition; may have wear and age related marks. See pics for condition / what’s included / testing conducted. Schmersal AZ 16 ZVK Safety Interlock Limit Switch IP67 230V 4A Photo front marking proves Schmersal AZ 16 ZVK, IP67, IEC 947-5-1 / VDE0660, AC-15 230V 4A, A600 and Made in Germany. No M16/M20 suffix is inferred. Condition: Used industrial surplus item with possible age, storage and cosmetic wear. Untested unless explicitly stated; see photographs for exact condition and included parts. Please match the exact part/model/configuration and photographed connectors/specification to your application before purchase. Includes x1 Safety Interlock Limit Switch as photographed.