1SFN034403R1000

Supplied by Ahmedabad Electric Corporation, the ABB VM140/190 is a specialized mechanical interlock unit engineered to interlock two block contactors across the AF116 through AF205 range for maximum operational security. This mechanical interlock unit provides a robust physical restraint designed specifically to interlock contactors of different frame sizes—such as interlocking AF116 ... AF146 contactors with AF190 ... AF205 contactors. When mounted between two contactors, the VM140/190 physically prevents one contactor from closing whenever the adjacent contactor is in the closed position. This lockout functionality prevents short circuits, phase-to-phase faults, and dangerous dual-power feed conditions in automatic transfer switches (ATS), motor reversing assemblies, star-delta starters, and changeover panels. Built with reliable screw terminals and high mechanical endurance, you can trust Ahmedabad Electric Corporation for 100% original ABB switchgear accessories, direct stock delivery, and expert engineering assistance for your switchboard projects