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Momentary Switch Replacement

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  1. Momentary Switch Replacement, Turn off power: étape 1, image 1 de 3 Momentary Switch Replacement, Turn off power: étape 1, image 2 de 3 Momentary Switch Replacement, Turn off power: étape 1, image 3 de 3
    • Find your Breaker Panel.

    • Identify the breaker to turn off.

    • There'll typically be a table listing the rooms corresponding to breakers.

    • Turn off the breaker.

    • Press the switch to ensure that the power is actually off (p. ex. the lights don't turn on).

  2. Momentary Switch Replacement, Remove the old switch cover: étape 3, image 1 de 3 Momentary Switch Replacement, Remove the old switch cover: étape 3, image 2 de 3 Momentary Switch Replacement, Remove the old switch cover: étape 3, image 3 de 3
    • Remove the switch cover by jamming a flat head screwdriver, into the gap between the outer frame and the switch cover.

    • Some manufacturers, like Busch-Jaeger have an extra frame beneath the switch cover, so you'll have to remove that as well.

    • Remove the frame

    • If you can't remove the frame because there's a wall socket on the same frame, take a look at this guide, on how to remove the cover of a wall outlet.

  3. Momentary Switch Replacement, Remove the old switch: étape 4, image 1 de 1
    • Loosen the holding claws by turning the two screws.

    • If your switch is mounted inside a cavity wall box you can remove it by loosening the two screws around the perimeter and turning the switch until the two keyholes line up.

  4. Momentary Switch Replacement, Determine voltage absence: étape 5, image 1 de 2 Momentary Switch Replacement, Determine voltage absence: étape 5, image 2 de 2
    • Use a Duspol or any other Voltmeter to test if there is voltage at the contacts.

    • You can also use a single pole phase tester, but that's not the proper way to do it.

    • Do not work on live circuits if you are not an experienced professional.

  5. Momentary Switch Replacement, Disconnect the wires: étape 6, image 1 de 1
    • Disconnect the wires form the old switch.

    • If the old switch has Push-In contacts, you can unlock the terminals by pushing down on the plastic levers.

    • If you short Earth to Neutral you'll trigger your GFCI/RCD, even if the power is off.

  6. Momentary Switch Replacement, Connect the new switch: étape 7, image 1 de 1
    • Connect the new switch. The new switch will typically mark where to connect which wire.

    • In (Phase Conductor/L)

    • Out

Conclusion

To reassemble your device, follow these instructions in reverse order.

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