3RV Motor Starter Protectors/Circuit Breakers up to 100 A Accessories Mountable accessories Circuit diagrams Undervoltage trip unit Shunt trip unit 3RV19 02-1A.., 3RV19 .2-1C.. 3RV19 02-1D.0 Undervoltage trip unit F4 Fuse (gL/gG), max. 10 A F1, F2 L1 F1 NSB0_00021b OFF button in the system S1, S2 L1(L+) F1 NSB0_00020c OFF button in the system S0 Motor starter protector Q1 Auxiliary switch of the molded case motor starter protector Q1 S1 S0 S S2 12 14(14) Shunt trip unit F3 Fuse (gL/gG), max.
10 A F1, F2 Q1 S 11(13) F4 F2 D2 D1 U F3 F2 C2 C1 N(L2) N(L2,L-) Switching examples 3RV1 motor starter protector with 3RV19 21-1M signal switch Motor starter protectors tripped by means of pushbutton or EMERGENCY-STOP pushbutton in the system L1 L2 Seperate "tripped" and "short-circuit" signals L2 L1 The leading auxiliary contacts will open in switch position "OFF" to deenergize the coil of the undervoltage release, thus avoiding power consumption in the switched off state. Signaling switch S1 Motor starter protector Q1 Fuse (gL/gG) max. 10 A F1 Signal lamp "Short-circuit" H1 In the "tripped" position of the motor starter protector, these contacts are not guaranteed to open.
H2 Signal lamp "Overload" or "Tripping by auxiliary trip unit" NSB0_00022c NSB0_00023b Motor starter protector Q1 S1, S2, S3 OFF pushbutton Q1 F4 S1 Fuse (gL/gG) max. 10 A F1, F2 S2 Undervoltage trip unit F4 S3 31 Siemens · 2009 1 3 5 v v v 2 4 6 57 65 77 85 86 v 2 v 4 v 6 58 66 78 F2 1 3 5 v v v 2 4 6 1 3 5 D1 07 U v v v v v 2 4 6