Siemens FXD63B150 3-Pole 600 VAC 150 Amp 22 kA Non-Interchangeable Trip Thermal Magnetic Molded Case Circuit BreakerSiemens FXD63B150 FXD63B150 Product Description Type FD Molded Case Circuit Breaker, 22kA @ 600V, 3 Poles, 150A, Non interchangeable, Standard 40 Degree Celsius Breaker, Thermal Magnetic, Standard IC Rating. Specifications: Actuator Varying Amperage 150 Amp Applications Standard 40C Breaker Current 150 Amp Enclosure Varying Frame FD Frequency 50 60 Hz Interrupt Rating 22 kAIC Number of Poles 3 Pole Operating Temperature 40C Standard HACR Temperature