The Westinghouse BA230 Quicklag circuit breaker is a 2 Pole, 30 Amp, 120/240V thermal circuit breaker with a Type A tripping characteristic. It features a bolt-on plug type and a switch control style, suitable for wall mounting in an interior room. The circuit breaker provides overcurrent protection with a maximum amperage of 30, making it suitable for commercial and electrical wiring applications. With a quick-lag design and trip indicator feature, this main breaker from Cutler-Hammer offers reliable and efficient operation for electrical systems requiring instantaneous break time.