SIEMENS LOW VOLTAGE 3VA UL MOLDED CASE CIRCUIT BREAKER WITH ELECTRONIC TRIP UNIT. 3VA63 FRAME WITH VERY HIGH (CLASS E) BREAKING CAPACITY. 250A 3-POLE (100KAIC AT 600V) (200KAIC AT 480V). ETU320 TRIP UNIT LI. SPECIAL FEATURES CONNECTION WITH LUG TERMINAL / NUT KEEPER.. DIMENSIONS (W x H x D) IN 5.4 x 9.8 x 5.4.