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Square D Legacy & Current Circuit Breakers for Consumer units / Distribution boards
Legacy breakers & replacements:

Domae breakers - prefix DOM**  these have now been replaced by Easy 9 range of circuit breaker prefix Ez9*

Quickline II - prefix SQO**  these have been replaced by the Resi9 range prefix R9F**

Quickline / QO Loadcentre (QOE)  these were the original consumer units and dis board pre date 1999 prefix QOE**  these have been replaced by a black breaker QO***VSC10 range these are an old product we still support (C type only breakers available) (you can see from image the plastic clamp at bottom and the pins at the top)

KQ Loadcentre -prefix KQ - these have been replaced by IKQ breakers SE10C110 example.

Unsupported breakers:
Quickline older versions (QOX, QOH) We no longer have an offer for these they will be over 20 years + old no replacements for these non of above will fit.

Here are images below to get familiar with the products.
Square D breakers
SD breakers fronts

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