FIELD: electricity.
SUBSTANCE: invention relates to release mechanism (6) for an electrical switching device, comprising protective housing (12), first electrical connecting contacts and power supply module (14) comprising at least one transformer and second input and output terminals capable of being connected to the first connection contacts in accordance with the connection direction. Power supply module (14) is capable of generating a supply voltage based on the input voltage received between the second input terminals and supplying the supply voltage between the second output terminals. Power supply module (14) is movable relative to protective housing (12).
EFFECT: maintaining safety when performing electrical tests.
11 cl, 8 dwg
