FUNCTIONAL UNIT FOR A LOW VOLTAGE PANEL WITH TEST POSITION

摘要

FUNCTIONAL UNIT FOR A LOW VOLTAGE PANEL WITH TEST POSITION. In order to simplify the connections of a functional unit to a low voltage box while at the same time gaining in compactness and modularity and providing a test function through auxiliary contacts, a platform for a functional unit has been developed. The platform (40) comprises a bracket (42) equipped with mating contact lugs (44) for connecting power supply and distribution, said bracket (42) being designed to be fitted to the moving unit support plate partial relative in the direction of engagement. The platform (40) further comprises a three-part telescopic auxiliary contact block (60) with a frame (70) securely attached to the support (42), two sliding connectors on the frame (70) and one with respect to the another, so that the contacts (56) of the connectors can assume an open position and a closed position, independent of the position of the frame (70) and thus of the locking contact jaws (44). Positive block-level locking means (60) perform a consecutive snap-in sequence 1 test 1 unlatch energy and its opposite compulsory.