SIEMENS LOW VOLTAGE 3VA IEC MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP UNIT. 3VA11 FRAME WITH MEDIUM (CLASS M) BREAKING CAPACITY. 63A 4-POLE Icu: (10KAIC AT 690V) (55KAIC AT 415V). TM220 TRIP UNIT WITH ADJUSTABLE Ir FIXED Ii. SPECIAL FEATURES: CONNECTION WITH BOX TERMINAL / STEEL WRAP AROUND LUG. DIMENSIONS (W x H x D) IN: 4 x 5.1 x 3.5.