Eaton / Cutler-Hammer CH320 Miniature Circuit Breaker

This plug-on miniature breaker is exclusively designed for use in Eaton or legacy Cutler-Hammer Type CH load centers. It will not fit in Type BR or other manufacturer panels.

The Type CH series features a 3/4-inch per pole footprint. This three pole breaker requires three consecutive 3/4-inch spaces, occupying a total width of 2.25 inches on your load center bus.

Yes, this model is fully HACR rated. It is tested and approved to handle the inrush currents and continuous loads of heating, air conditioning, and refrigeration equipment.

Standard Eaton Type CH circuit breakers trip fully to the OFF position rather than stopping in a middle position. This design eliminates the need to push the handle firmly to the OFF position before resetting.

No, the CH320 is a standard plug-on circuit breaker. It snaps directly onto the bus bar of a Type CH load center without the need for bolted connections or additional mounting accessories.

This model features an internal common trip mechanism. If an overload or short circuit occurs on any one of the three poles, the internal linkage ensures all three poles open simultaneously to prevent single-phasing of three phase equipment.

Yes. Eaton acquired Cutler-Hammer and maintained the exact physical and electrical specifications for the Type CH series. An Eaton CH320 is a direct, UL 489 listed replacement for an older Cutler-Hammer CH320.