Siemens LXD63H600, Siemens Low Voltage Sentron Molded Case Circuit Breaker With Thermal – Magnetictrip Unit. High Instantaneous Range Eti Breaker Ld Frame With Standard Breakingcapacity And Non Interchangeable Trip. Meets Ul 489 / Iec 60947-2 Standards. 600A 3-Pole Breaker (25Kaic At 600V) (35Kaic At 480V). Special Features No Lugs Installed. Dimensions (W X H X D) In 7.5 X 11 X 4.