This Teco/Westinghouse westinghouse DA3400XZ breaker 400A 240V 3PH DA-3400-XZ 400 amp 3 pole w/Bus tie is a circuit protection device manufactured by Teco/Westinghouse. Key specifications noted on this listing include 400A, 400 Amp, 3 Pole. It is commonly in panel builds and electrical system retrofits.
