8-Way Dual RCD Consumer Unit | UKCA Certified

8-Way Dual RCD Consumer Unit | UKCA Certified

The E1408DR is a 8-way consumer unit configured with a dual RCD split-load arrangement, providing enhanced circuit protection and improved discrimination for domestic and small commercial electrical installations. The dual RCD configuration divides the outgoing circuits across two independent 80A 30mA RCDs — so a fault on one group of circuits does not affect the other group, eliminating the total loss of supply that occurs with a single RCD incomer.

Each RCD protects approximately 4 ways, with the circuits split across two busbars. This arrangement meets BS 7671 (18th Edition) requirements for RCD protection while providing a practical level of discrimination — critical circuits such as lighting and freezers can be placed on separate RCDs to ensure continued operation during an earth fault trip on the other group. The 8-way board is suitable for standard domestic installations.

Key Features

• 8 usable ways — split across two independent RCD-protected groups
• Dual 80A 30mA RCDs — improved discrimination; fault on one group does not affect the other
• 100A main switch — provides safe local isolation of the entire installation
• Split-load arrangement — allows critical circuits to be separated across RCD groups
• Metal construction — powder-coated galvanised steel enclosure for fire resistance
• 35mm DIN rail — compatible with all MCBs, RCBOs and modular devices
• Neutral bar and earth bar included as standard
• Top and bottom cable entry knockouts — flexible installation options
• UKCA certified — compliant with UK product safety regulations

Technical Specification

Compliance & Certification

• UKCA certified
• Metal enclosure as required by BS 7671 (18th Edition) Regulation 421.1.201
• Dual 30mA RCD protection compliant with BS 7671 earth fault protection requirements
• Suitable for use in installations compliant with BS 7671 (18th Edition IET Wiring Regulations)

Installation Notes

This consumer unit must be installed by a qualified electrician in accordance with BS 7671 (18th Edition). Always isolate the supply before installation. Distribute circuits across the two RCD groups to achieve balanced loading and optimum discrimination — place critical circuits (e.g. lighting, alarm, freezer) on a separate RCD group from high-risk circuits (e.g. outdoor sockets, bathroom circuits). Both RCD test buttons should be operated at least quarterly. Mount on a flat, non-combustible surface at a height between 450mm and 1350mm from finished floor level. Fit blanking modules in all unused ways.