General Electric TFK Series circuit breakers are designed to protect electrical appliances from short-circuit and overload conditions. These UL-listed breakers feature an interchangeable, thermal-magnetic trip unit that facilitates field-adjustments to provide both long-time and instantaneous current limiting functions. Calibrated at 40 degrees C, these units deliver a maximum interrupting capacity of 22kA @ 480V and current ratings ranging from 80A to 225A. Choose from a wide range of these IEC supplementary protectors available in two- and three-pole configurations on Raptor Supplies.