Busbar system Busbar center-to-center spacing 60 mm Device adapter, Width: 185mm Bar thickness: 5.10 mm+TT profile for switchgear up to 630 A 3KA52/53, 3KL52/53 For 3VF4/5, additionally order 8US1927-4AF00 For 3VL1+DI, 3VL4, additionally order 8US1927-4AF01