A collection of the latest guides relating to 18th Edition, Hager is proud to be a technical contributor to these guides which provide technical advice on a range of 18th Edition related topics. Arc fault protection devices (AFDD) use microprocessors to identify characteristic current flow and voltage curves that indicate an arc fault and automatically trip the affected circuit. A transient overvoltage or surge is a short duration increase in voltage measured between two or more conductors. In short this means anything from microseconds (millionths of a second) to a few milliseconds (thousandths of a second) in duration.

Devices such as switches, RCCBs etc. in distribution boards and consumer units may have historically had their rated current determined after having taken diversity into account but without having considered overload protection of the devices.

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Equip­ment in­cor­por­at­ing elec­tronic com­pon­ents RCD can de­tect & re­spond as for type AC, PLUS pulsat­ing DC com­pon­ents.

The DESIGN 10 has ample cable space available in it even when RCBOs are fitted. The top mounted terminal rail, for example, makes the wiring of the neutral and earth connections neat and simple.Single phase in­vert­ers, class 1 IT & mul­ti­me­dia equip­ment, power sup­plies for class 2 equip­ment, ap­pli­ances such as wash­ing ma­chines, light­ing con­trols, in­duc­tion hobs & EV char­ging Im­mer­sion heater, oven / hob with res­ist­ive heat­ing ele­ments, elec­tric shower, tung­sten / halo­gen light­ing Equip­ment with fre­quency con­trolled speed drives RCD can de­tect & re­spons as for type A, PLUS high fre­quency re­sid­ual cur­rent. This Hager Consumer Unit is designed for safety, installation, and aesthetics, and it conforms to all the current regulations in the UK.