Lock case with an automatically deadlocking latchbolt. The latchbolt protrudes to 21 mm when the door is closed. The lock has no lever handle operation. The bolt is opened with either a key or a thumbturn. 4194X is the microswitch version of the lock. The switch changes it’s status when the bolt has protruded to 15 mm or more. Following striker plates are recommended to be used with a microswitch locking box: 4692, 4693. Striker plate: 4690, 4691, LP711, LP714 Cylinder: ABLOY® C, N, T, U Fire resistance: Wooden doors EI115 – EI160 and EI215 – EI260, Metal doors EI115 – EI1120 and EI215 – EI2120 Mortise standard: SFS 5209.