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Unusual MCB

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
Parents
  • I've found an RCBO on ebay for a tenner. Don't know how long it will take to get to me as the postal service has massive delays at the moment.

    As soon as I get it I will open it and put the pic of it on here.


    Should be interesting to see if a company would make and RCBO with no magnetic mechanism. There was no excuse to make the MCBs that are used in DBs without them, Even worse if they made RCBOs without them.

    From the info about FE's failures and falsifying their testing they deserved to go out of business.


    From now on I will fail any of their DBs with a code 2 and include the pics of the insides of the MCBs and RCBOs and the 2 reports on them.

    Even the ones that have magnetic mechanisms in as the reports says they are prone to jamming, even the single pole ones.

    The reports seem to focus on the bakerlite ones. Not too sure about the newer plastic 60898 ones. They must have gone out of business just after manufacturing those.

Reply
  • I've found an RCBO on ebay for a tenner. Don't know how long it will take to get to me as the postal service has massive delays at the moment.

    As soon as I get it I will open it and put the pic of it on here.


    Should be interesting to see if a company would make and RCBO with no magnetic mechanism. There was no excuse to make the MCBs that are used in DBs without them, Even worse if they made RCBOs without them.

    From the info about FE's failures and falsifying their testing they deserved to go out of business.


    From now on I will fail any of their DBs with a code 2 and include the pics of the insides of the MCBs and RCBOs and the 2 reports on them.

    Even the ones that have magnetic mechanisms in as the reports says they are prone to jamming, even the single pole ones.

    The reports seem to focus on the bakerlite ones. Not too sure about the newer plastic 60898 ones. They must have gone out of business just after manufacturing those.

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