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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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    the breakers in the UK are Federal Electric, the USA ones are Federal Pacific Electric (fire-prone equipment) 


    the look the same outwardly, but the UK ones are, apparently, ok, combustion wise. 


    the RCBOs for those boards, have a little neon that lights if it trips
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    the breakers in the UK are Federal Electric, the USA ones are Federal Pacific Electric (fire-prone equipment) 


    the look the same outwardly, but the UK ones are, apparently, ok, combustion wise. 


    the RCBOs for those boards, have a little neon that lights if it trips
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