ABB 1SCA129242R1001 OTM3200E4CM230C 4P Motorized Changeover Switch

The ABB 1SCA129242R1001 OTM3200E4CM230C is the 4-pole, 3200 A motorized changeover switch in the same frame as its 3-pole sibling, adding a switched neutral for 4-wire distribution driven by a 220-240 V AC motor operator. Rated operational voltage is 1000 V, with a direct-mount handle for manual backup and base mounting for panel installation.

Technical Specifications

Selection Notes

The fourth pole switches simultaneously with the three line poles at the full 3200 A rating, the configuration needed where neutral must be isolated between two 1000 V sources rather than bonded on both. Current rating and motor voltage match the 3-pole 1SCA129240R1001 exactly, so the decision between them is purely about neutral switching, not capacity. At 831.5 mm wide and 76 kg it is noticeably larger than the 3-pole frame (691.5 mm, 61 kg), and the extra pole adds load to the same 220-240 V AC motor operator; as with the 3-pole unit, the source record carries no Icw or Ui figures to confirm against upstream fault levels before installation.