150 A, 2-Pole — What It Switches and Where It Fits
The ABB A2N150TW is a 2-pole contactor rated 150 A continuous with a 240 V AC coil, panel-mounted. The 2-pole configuration means it switches two lines — typically used for single-phase motor loads, resistive heating banks, or DC circuits where only two wires need breaking. The 150 A rating covers large single-phase compressors, industrial ovens, or UPS bypass paths.
25 kA Interrupting Rating — SCCR Headroom for High-Fault Panels
Rated 25 kA interrupting capacity at 240 V AC, this contactor can safely clear a fault up to 25 kA without welding or exploding — critical for panels with high available fault current from large transformers or utility feeds. The 25 kA SCCR means it can sit downstream of a 25 kA-rated breaker without needing a current-limiting fuse ahead of it.
Panel Mount — Not DIN-Rail, Plan the Cutout
Mounting is panel, not DIN rail — the contactor bolts to a backplate or sub-panel through its own base. No DIN-rail adapter is standard, so the enclosure layout must allocate screw-down space and access for the coil and load wiring. The 2-pole form factor is narrower than a 3-pole, saving panel width.