"CC" Product Range:-
Chopped Coil Controller
All Albright contactors can be supplied with a module which initially provides full supply voltage to the contactor coil enabling the contactor to close on full power. Then after approximately 1/2 second the supply voltage is "chopped" back to a preset level. The contactor will thus remain closed on a much reduced power level.
The benefit from this system is that contactors can be engineered with powerful coils and springs but can be operated continuously producing very little heat. Typically an SW80 will run at 2 watts, SW200 at 3 watts and an SW1500 at 5 watts.
Momentarily interrupting the supply to the coil automatically resets the device so that when re-energised the coil will see full voltage supply for approximately 1/2 second and then the chopped supply will resume.
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Contactors energised using the chopper are fundamentally fail safe in that interruption of the supply will cause the contacts to open.
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