1SBN040200R1011

ABB 1SBN040200R1011 – WA4-96-11 is a front-mounted mechanical latching unit designed specifically for ABB AF80 and AF96 contactors. It converts a standard electrically operated contactor into a compact mechanically latched contactor, allowing the contactor to remain in the closed/ON position even when the supply voltage at the main contactor coil is removed or fails. The WA4-96-11 operates over a wide control-voltage range of 24–60 V AC at 50/60 Hz and 24–60 V DC. This wide-range design covers common control voltages such as 24 V, 28 V, 32 V, 36 V, 42 V, 48 V, 50 V, 55 V and 60 V within one accessory version.