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  • 0

4 Fibaro Relay Switch FGS-221 burned in 3 month !


Question

Posted

Hello,

I've a strange problem.

I use FGS-221 to give a signal to the motor of my garage door

Wiring is simple :

N and L to 220V, IN and O1 to the switch

It works, but only few weeks. After, the switch is defintively dead. No bad smell. 4 are dead now !

Only thing, I measure +/- 30V DC between IN and O1 constantly. Is this can be the issue ?

3 answers to this question

Recommended Posts

  • 0
Posted

An electric motor is a highly inductive load and can draw very high currents when it is started in which case a failure of the FGS221 is expected.

  • 0
  • Inquirer
  • Posted
    An electric motor is a highly inductive load and can draw very high currents when it is started in which case a failure of the FGS221 is expected.

    The current is not going trough the swich. The swich is just acting as an impulsion and only 3 sec max. During the impulsion, only 100 ma is going throught.

    • 0
    Posted

    Could you please draw a schematic?

    If there is no significant current through the switch it should not fail. If four of them have failed in such a short time there is definitely something wrong somewhere..

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