BUSBAR ADAPTER SYSTEM BUSBAR ADAPTER 185MM WIDE FOR SWITCHING UNITS UP TO 630A (3KA53,3KL52/53,3NP42, WITH 3VF4/5, 3VL1-4, IN CONNECTION WITH 8US1927-4AF0 MOUNTING PLATE ONLY. 60MM SYSTEM, 5 + 10MM BUSBAR THICKNESS WITHOUT CONNECTION WIRING