ABB A1N070TW-1 Three-Phase Magnetic Contactor

ABB A1N070TW-1 is a three-pole molded-case circuit breaker (MCCB) from ABB’s FORMULA family, engineered to provide thermal-magnetic overcurrent protection in low-voltage distribution panels. The A1N070TW-1 variant belongs to the A1N frame family, sits in the 70–700 A current-range, and is UL-listed for standard electrical installations. As a 3P device, it protects three-phase circuits in panelboards and switchgear assemblies used in industrial and commercial power distribution. The TMF designation indicates a thermal-magnetic trip mechanism that provides both overload protection and magnetic short-circuit interruption, enabling coordinated protection in multi-branch distribution schemes. This model is compatible with ABB FORMULA accessories and enclosures designed for A1N-frame MCCBs, supporting straightforward mounting, isolation, and integration within protection schemes. Alternate catalog number A1N070TW-2 is also listed for this same frame and rating, reflecting ABB’s cross-reference options across the FORMULA MCCB family.