Technical details System pro M compact®

Systempro M compact ®Technical detailsE 250 latching relaysCommanddevicesUse of lighted pushbuttonsLatching relays can be controlled through lighted pushbuttons, without any limitations in terms ofconnection of three-terminal types.In two-terminals pushbuttons the current that fl ows through pushbutton lamps can trigger anunwanted activation; in order to avoid this there is the E 250 CP compensation module, installed inparallel on the coil.Number of E 250 CPNumber of connectable lighted pushbuttonscompensation modules1P – 2P types3P – 4P types0 8 91 18 222 45 38Maximum length of very low voltage connectionsToo long feeding cables can reduce voltage so that it is no more enough for guaranteeing standardoperating conditions of latching relays, in particular for very low voltage types.For this reason the wiring must comply with the total lengths (outward and return) shown in thetable.U N 0.5 mm 2 0.75 mm 2 1 mm 2 1.5 mm 28 V~ 28 m 41 m 55 m 90 m12 V~ 68 m 102 m 136 m 224 m24 V~ 272 m 412 m 548 m 896 m1111/94 ABB