SIEMENS LOW VOLTAGE 3VA UL MOLDED CASE CIRCUIT BREAKER WITH ELECTRONIC TRIP UNIT. 3VA63 FRAME WITH MEDIUM HIGH (CLASS C) BREAKING CAPACITY. 250A 3-POLE (35KAICAT 600V) (100KAIC AT 480V). ETU320 TRIP UNIT LI. SPECIAL FEATURES CONNECTION WITH ALUMINUM LUG. 100 PERCENT RATED. DIMENSIONS (W x H x D) IN 5.4 x 9.8 x 5.4.