Type-checked busbar adapter for NZM circuit-breaker and N switch-disconnector, for surface mounting on Cu-busbars 12-30x5-10, double t and triple t profile, rated operational current Ie=250A, can be used for NZM2, PN2, N(S)2, adapter width=106mm, rated operating voltage Ue=690VAC, threaded connection on the busbar 5mm or 10mm thickness, connection top or bottom possible by turning the adapter, temperature resistant to 120 °C, self-extinguishing to UL 94, track resistance CTI 200, number of poles=3 pole, between busbar centers=60mm, can be used in conjunction with busbar system SASY 60i, UL approved