ABB A1N025TW-1 Three-Phase AC Contactor, 3-Pole, 25 A

ABB A1N025TW-1 is a three-pole molded-case circuit breaker (MCCB) in ABB’s Formula A1N family, rated for 25 A in 3‑phase low‑voltage circuits. This UL-listed device uses a thermal‑magnetic TMF trip to provide both overload and short‑circuit protection and is suitable for panel boards, motor control centers, and distribution panels. It features front‑connected wiring with optional DIN rail or fixed mounting and sits in the A1N 100 A frame family with an adjustable trip range from 25 A up to 300 A. The unit is rated for nominal voltages up to 240 VAC and up to 250 VDC, with interrupt ratings listed as up to 10/25 kA depending on configuration. Its dimensions are 5.12 in high, 3 in wide, and 2.36 in deep, and the 3‑pole configuration makes it well suited for protecting 3‑phase circuits in industrial settings. The A1N025TW‑1 is commonly used as branch‑circuit protection in industrial controls and can be integrated with other Formula protection devices within ABB installations.