ZCKS limit switch housing, 2NO, stepped switching, Pg 13.5. Product series: OsiSense XC - Series name: Standard format - Product or component type: Limit switch housing - Device short name: ZCKS - Housing type: Fixed - Product compatibility: XCKS - Associated head: ZCKD81, ZCKD39, ZCKD31, ZCKD91, ZCKD41, ZCKD49, ZCKD06, ZCKD54, ZCKD02, ZCKD019, ZCKD029, ZCKD34, ZCKD08, ZCKD33, ZCKD59, ZCKD01, ZCKD05, ZCKD55 - Connection structure and type: 2NO - Contact material: Silver plated contacts.