... install size. Table 7 Basic data of switch ModelsSturctureRated insulation voltage (V) Rated working voltage (V) Conventional free air thermal current (A) Fuse ... busbar or supporter, three phasesmake and break simultaneity, up output line1000400, 500, 690400NH1, NH2 5678H2-630/TN1000400, 500, 690630NH36168H2-160TNL1000400, 500, 690160NH00 ...