Patent ID: 8653915
Filing Date: 2014-02-18
Classification: H01H

Abstract:
1. An electrical contactor comprising: a housing; an electrical conductor assembly at least partially within the housing, the electrical conductor assembly including a stationary contact assembly and a movable contact assembly; and a contact actuator operably interfaced with the electrical conductor assembly, the contact actuator including a plunger movable from a first plunger position in contact with the movable contact assembly to a second plunger position spaced from the movable contact assembly, wherein translation of the plunger is limited by a stop flange provided thereon, wherein the contact actuator further comprises an electromagnetic solenoid assembly comprising: a movable plunger assembly comprising the plunger extending between a first contact end and a second bobbin end, and a plunger biasing mechanism configured to bias the plunger towards the movable contact assembly, a stationary coil assembly comprising a substantially cylindrical can having an open washer end, a bobbin situated substantially within the can, a plurality of turns of electrical conductor disposed around the bobbin, and a magnetically permeable cover washer configured to rest against the open washer end, wherein the stationary contact assembly defines a first electrically conductive path from a first electrical contact to a first terminal, the first electrical contact located within the housing and the first terminal extending through the housing, further wherein the movable contact assembly defines a second electrically conductive path from a second electrical contact to a second terminal, the second electrical contact located within the housing and the second terminal extending through the housing, and further wherein, when the plunger is in the second plunger position, a third electrically conductive path is defined from the first terminal to the second terminal.