TeSys Deca mechanical latch block, for LC1D09-D80A, LC1DT20-DT80A contactors and CAD control relays (except devices with low consumption coils). Electrical latching and unlatching is performed applying a 220-240V control voltage pulse (> 100ms in AC, 250ms in DC). Unlatching can be manually operated. Clip-on mounting on front of contactor, connection by screw terminals. For applications with high operating rates until 1200 cycles/hour. Multi standards certified (IEC, UL, CSA), Green Premium compliant (RoHS/REACh).