Multipole circuit breaker with modular assembly

Details Multipole circuit breaker with modular assembly Multipole circuit breaker with modular assembly

H - Electricity

01

H

H01H 73/02 (2006.01) H01H 71/02 (2006.01) H01H 71/10 (2006.01) H01H 71/16 (2006.01) H01H 71/24 (2006.01)

Patent

CA 2119287

Each breaking module (14) is formed by a parallelepipedic monoblock cartridge (26) made of plastic material, housed in the corresponding compartment (96), (98), (100) of the base plate (88), said cartridge housing at least a stationary contact (34), (36), an arc extinguishing chamber (84), and a pair of connecting strips (38), (42) for connection to a terminal (40) and to the trip module (46) of the same pole. A mechanical actuation module (122) constituted by the switching bar (82) and mechanism (60) assembly, is securedly united to the cover (90). The rotary trip bar (52) is supported by clipping means (138), (140) arranged on the bottom face of the cover (90). A plurality of recesses (114), (116) and cutouts (138), (140) are arranged in the spacers (94), (95) of the base plate (88) to act as first bearing surfaces respectively for the switching bar (82) and trap bar (52) when the first sub-assembly A composed of the base plat a (88) with the set of breaking modules (14) and trip modules (46), (46a) is adjoined with the second sub-assembly B formed by the cover (90) on which the mechanical actuation module (122), trip bar (52) and latch (58) are fitted.

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