In Finland (and several other countries), all outlets and extension cords are required to have child protection shutters. They are small plastic covers inside the outlet that are supposed to open when the pins are inserted simultaneously to both holes. You can see them as green in the image below:

Schuko extension cord

On good quality outlets they usually work quite well. However especially on cheap extension cords they often fail to open.

Pushing harder or wiggling rarely helps. Inserting the plug very carefully so that the pins enter at exactly the same time sometimes work, but not always. Spraying some lubricant seems like it might help, but probably isn't very safe as it could harm the electrical contact and cause overheating.

Is there a way to force a plug into a stubborn outlet?

  • 1
    @pseyfert If you have an answer, please post it below. Thanks. Jan 18, 2018 at 0:32

1 Answer 1


I haven't found a better way than wiggling the plug. Examine the shutters: they are usually wedge-shaped. Wiggle in the direction of the slope (downhill) while applying a bit of force.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.