SIEMENS LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH SOLID STATE SENSITRIP III ELECTRONIC TRIP UNIT. ASSEMBLED STANDARD 40 DEG C BREAKER JD FRAME WITH STANDARD BREAKING CAPACITY. 300A 3-POLE (25KAIC AT 600V) (35KAIC AT 480V). NON-INTERCHANGEABLE LSIG TRIP UNIT. SPECIAL FEATURES NO LUGS INSTALLED. DIMENSIONS (Wx H x D) IN 7.50 x 11.0 x 4.00.