Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Polarity-responsive
Patent
1999-04-28
2000-02-01
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Polarity-responsive
335 80, 335113, H01H 5122
Patent
active
060208015
ABSTRACT:
Simplicity and reliability in a trip mechanism for an overload relay is achieved in a construction including a housing containing a bistable armature mounted on a pivot for movement between two stable positions. Fixed contacts are located within the housing and moveable contacts are carried by the armature for movement to a closed position with the fixed contacts for one of the two stable positions and for movement to an open position relative to the fixed contacts for the other of the two stable positions. A latch arm is carried by the armature and has a latch surface thereon. A torsion spring is mounted on the housing and has a latch finger for engaging the latch surface and retaining the armature in one of the two positions. A push button is provided for disabling the latch finger.
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Donovan Lincoln
Siemens Energy & Automation Inc.
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