Dielectric test switch for ground fault circuit-breaker, has fixed electrodes placed, in form of cassette, in lower region of switch case and maintained on electrode holding element, and bridge type mobile contacts placed above electrodes

摘要

The switch (11) has a pair of fixed electrodes (14), for each terminal, placed, in the form of a cassette, in a lower region of a switch case (13) and maintained on a cartridge type fixed electrode holding element (15). Bridge type mobile contacts (16) are provided for each terminal and are disposed above the pair. A mobile contact holding element (17) maintains the mobile contacts with respect to each other. The contacts are slidably contained in vertical direction in the case. An operating head (17a) extends the element and is extended towards the top from the case.