Product details:
Murray breakers are intended for use in Murray and Crouse Hinds type load centers. These breakers are plug in style and are on a 1 in. format. Single Pole breakers are 1 in., double pole are 2 in., 3 pole are 3 in., and 4 pole are 4 in. wide. See the wiring diagram on the load center for breaker type acceptance.
