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Unusual MCB

Sparkymania
Here's an interesting one.

Federal Electric 20A MCB. Had no type on it and was taking a long time to trip. Opened one up and discovered why it didn't have a type.

Others with it were ECC but virtually the same design. Only thermal. Both are plug in types called stab-lok and are bakerlite.


No instantaneous trip mechanism. Only a thermal one.



34200b5e07a12e120f5fc679b8b1b9aa-huge-mcb-with-no-instantanious-trip-mechanism-4.jpg
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    Wow!

    I'd never have believed it.

    Shame we can't see the inside. If that were cheaper I'd get it just to open it up to check if this version has a magnetic mechanism.

    It's hard to believe they would produce an RCBO with only a thermal mechanism for the overcurrent.
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  • 0
    Wow!

    I'd never have believed it.

    Shame we can't see the inside. If that were cheaper I'd get it just to open it up to check if this version has a magnetic mechanism.

    It's hard to believe they would produce an RCBO with only a thermal mechanism for the overcurrent.
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