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Main Power on/off Switch
Anonymous user 10/09/2026 - 9.49 AM
Hello, I need to know how to turn off the power of my building. Please can I have help? Thanks
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1 Answer
Plug House
Rating: 4.9 out of 5
To safely turn off main domestic power:
Turn Off Circuit Breakers: Open the consumer unit (fuse box) door and switch all individual MCBs/RCBOs off first to prevent arcing.
Switch Main Isolator Off: Switch the main double-pole isolator switch (usually large/red, labeled Main Switch) to the OFF position.
Older Fuse Boards: Pull the main isolator lever down before removing individual fuses.
Note: Never break the seal on the DNO service fuse next to the meter.
Answered10 September 2026
0