How to Wire a CCU for Power and Cooker Circuits

Wiring a Consumer Control Unit (CCU) is one of the most crucial steps in any domestic or commercial electrical installation. A well-wired CCU ensures that all loads are safely protected and separated for easy management and fault detection. In this guide, we’ll walk through how to wire a CCU to support both power sockets and a dedicated cooker circuit. Materials and Tools Required - Consumer Control Unit (double pole) - Miniature Circuit Breakers (MCBs): - 1 × 32A for cooker - 1 × 20A for power sockets - 1 × 63A DP Main Switch - 6mm² cable for cooker - 2.5mm² cable for socket circuit - 10mm² Earth wire (if TT system) - Screwdriver set - Wire stripper - Test meter - PVC conduit or trunking - Proper earthing and bonding conductors Step-by-Step Wiring Process Isolate the Supply Before doing anything, isolate the mains supply to ensure safety. Confirm using a voltage tester that the CCU is not live. Mount the CCU Secure the CCU on a plywood board or wall surface u...
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