ABB VM140/190 Mechanical Interlock Unit is a dedicated accessory for ABB AF contactors within the VM140/190 family, designed to mechanically interlock two adjacent contactors to prevent simultaneous energization in dual-contactor control circuits. Compatible with 30 mm-wide AF contactors, the interlock’s enclosure measures 30 mm in width by 41.8 mm in depth by 84.9 mm in height and carries ABB part number 1SFN034403R1000. Used in VM140/190 configurations to enforce safe interlocking in control arrangements, this unit provides a robust mechanical solution that integrates with ABB’s AF contactor lineup.
