MULTIPLE CIRCUIT SWITCH INCORPORATING POWER SUPPLY UNIT

PURPOSE:To easily cope with the centralized control of multiple multi-circuit switches by protruding the primary side of a built-in power source terminal from a tank, connecting one end of a flexible cable to it, and removably connecting the other end to a test terminal. CONSTITUTION:One end section of each plug-in type cable 14 is inserted and connected to a primary side terminal 12. The other end section of each cable 14 is removably inserted into the test terminal 10 of an optional two-phase bushing 4 among three phases of a power source side main circuit section. The phase selection can be easily changed for the connection of a power source side power distribution cable 5 and a power supply device 3, and the withstand voltage test can be performed for only the optional phase of the cable 5 by removing the end section of the cable 14.