IZMB2-4-A1600, Klockner Moeller, IZM Series, type IZM-2, 4P, 3PH, 1600A, 690V, 55kA@415V, basic switching capacity, complete with non-interchangeable trip, (LI) Long-Time and Instantaneous trip functions, solid state electronic, insulated case circuit breakers for distribution circuit protection
