Selection Of Types Of RCD
RCD's exist in various different forms and react differently depending on the presence of DC components or different frequencies.
The following RCD's are available with the respective symbols and the designer or installer is required to select the appropriate device for the specific application.
RCD Testing
Type AC
General purpose use, RCD can detect & respond to AC sinusoidal wave only.
Type A
Equipment incorporating electronic components RCD can detect & respond as for type AC, PLUS pulsating DC components.
Type F
Equipment with frequency controlled speed drives RCD can detect & respons as for type A, PLUS high frequency residual current.
Type B
Electric vehicle chargers, PV supplies.
RCD can detect & respond for type F, PLUS smooth DC residual current.
RCD's & Their Loads
|
RCD |
Types of Load |
|
Type AC |
Resistive, capacitive, inductive loads |
|
Type A |
Single phase with electronic components |
|
Type F |
Frequency controlled equipment |
|
Type B |
Three phase electronic equipment |
Downloads
Types of RCD files
Download our documentations below, containing everything you need to know about Arc Fault Detection and the 18th Edition.
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At a Glance | RCD Types
All of the key info you need to know about Arc Fault Detection Devices.
pdf593.98 KB -
Bitesize Guide | 18th Edition
Our small guide to everything you need to know about the 18th edition.pdf1.3 MB -
Residential Distribution Catalogue
Our Residential Distribution Catalogue contains all of our 18th edition solutions for residential applications.pdf5.79 MB
More from the 18th Edition
Surge Protection
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.
Arc Fault Detection Devices
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.
Overload Protection
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.
BEAMA Guides
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.
