The CK series Keylock Switch feature high insulating material for 16mm CKM models withstands rockers over 15kV of electrostatic discharge, thus providing antistatic feature. Rugged die-cast housing 19mm CKL models designed for higher security requirements. Vertically rotating switching mechanism combines with self-cleaning sliding contacts for high reliability and long operating life. CKL and CKM on-off-on models with tubular keys have push-and-lock mechanism which allows contactor to drop and slide over stationary contacts.