Type-tested busbar adapter for NZM circuit breakers and N load-break switches, for installation on Cu flat bars 12-30x5-10, double-T and triple-T profile, rated operating current Ie=250A, can be used for NZM2,, PN2,, N(S)2, NZM2(-4), PN2(-4), N(S)2(-4), adapter width=140mm, rated operating voltage Ue=690VAC, screw connection to the busbar 5mm or 10mm thick, cable connection at the bottom, temperature resistant up to 120°C, self-extinguishing according to UL 94, tracking resistance CTI 200, number of poles=4-pole, busbar center distance=60mm, can be used in conjunction with busbar system SASY 60i,