ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades RCD TYPES

Can anyone tell me if MEM RCDd as installed in consumer units are electronic type or just purely electro mechanical the RCD I'm thinking of are MEM T ones

Annmarie,
Are you reffering to the standard 30mA sub-circuit RCD's or the 100mA Selective types used as Main switches, that protect the whole installation?

I mean the 30 mA ones for individual circuits