Pressure switch with side operator mechanism and door assembly

Details Pressure switch with side operator mechanism and door assembly Pressure switch with side operator mechanism and door assembly

H - Electricity

01

H

306/327

H01H 9/22 (2006.01)

Patent

CA 1100166

Boltswitch - Case 102 ABSTRACT OF THE DISCLOSURE An operating mechanism for opening and closing the movable contacts of a load break pressure contact switch which is operable from a side of a switch enclosure and has an optional door safety interlock. The operating mechanism comprises a main shaft with a handle attached thereto for rotating the shaft in opposite directions between switch- open and switch-closed positions An operating lever which is connected to the movable switch contacts is driven by an overcenter toggle spring means which is operated by the main shaft through a lost motion connection mechanism. An optional interlock is provided for the switch enclosure access door and includes a latch to hold the access door closed when the switch contacts are in their closed position and a mechanism to prevent movement of the switch contacts to their closed position when the access door is open. The interlock is operatively actuatable through cam surfaces and stop surfaces on the lost motion connection mechanism. An override for the door latch allows the access door to be opened while the switch contacts remain closed.

298961

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