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RCD types

Regarding RCD types, AC, A, F, etc. Do these classification/types apply only to RCD's installed in CU's/DB's, or to RCD's incorporated in RCD sockets and fused connection units as well? A manufacturer is getting back to me about their products later in the week, and I'd like to have something to compare their answer to.


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  • or moot if we believe the reg writers really intended this, - but not a daft question to ask in any case .

    Most plug in RCDs for example are designed as AC type, but do still respond to lumpy DC (as A type) but need rather more of it to trip them.

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  • or moot if we believe the reg writers really intended this, - but not a daft question to ask in any case .

    Most plug in RCDs for example are designed as AC type, but do still respond to lumpy DC (as A type) but need rather more of it to trip them.

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