Cutler Hammer ch120st Circuit Breaker, 1-Pole 20-Amp with shunt trip Breaker Type:Thermal Magnetic Application/Feature:Shunt Trip Mounting:Loadcenter, Plug-On Line Terminal:Plug-On Clip Load Terminal:Lug Poles:1P Amps:20 Voltage:120/240V AC HxWxD:3.25' x 2.00' x 3.00' Manufacturer Series:BR Product Details: Cutler Hammer BR120ST -- 1 Each Breaker Type:Thermal Magnetic Application/Feature:Shunt Trip Mounting:Loadcenter, Plug-On Line Terminal:Plug-On Clip Load Terminal:Lug Poles:1P Amps:20 Voltage:120/240V AC HxWxD:3.25' x 2.00' x 3.00' Manufacturer Series:ch