TeSys Deca mechanical latch block, for contactors LC1D40-D65(4P AC) and LP1D40-65(4P DC).Electrical latching and unlatching is performed applying a 110…127V DC/AC control voltage pulse.Unlatching can be manually operated.Clip-on mounting on front of contactor, connection by screw terminals.Multi standards certified (IEC, UL, CSA), Green Premium compliant (RoHS/REACh).