Square D A1B370 – 70A 3 Pole Molded Case Circuit Breaker Grab Now

Part of the A1B series, the Square D A1B370 is a 3-pole, 70A molded case circuit breaker for commercial distribution. It provides essential long-time and instantaneous (LI) trip functions. This unit features a bolt-on configuration and installs into legacy Square D NA1B panelboards. It accommodates 8-2 AWG wire via standard lugs, making it an exact fit for maintaining older infrastructure. Rated at 10kAIC (240VAC), it includes a Visi-Trip indicator for quick status checks.