Three-Phase Supplies in London

Three-phase supplies, distribution boards, motor connections, CNC machinery, commercial kitchens. Properly designed, properly tested, properly certified.

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What's included

Everything covered under three-phase

New 3-Phase Supplies

Liaison with DNO for new 3-phase incomers. Tails, main switch, distribution, sub-mains — fully designed.

Machinery Connections

CNC machines, commercial kitchens, workshop tools, HVAC. Correctly sized cables, isolators, earth paths.

Distribution Boards

TPN and single-phase boards with surge protection. Clear circuit charts, neat cable management, photographed for records.

Motor & Inverter Circuits

VSD drives, soft starts, DOL starters. Correctly rated cabling, earthing, filtering where needed.

FAQ

Common questions

Can you apply for a 3-phase upgrade from single-phase?

Yes — we liaise with UKPN/SSE/National Grid on your behalf, design the installation to meet the new load profile and handle the internal work once the supply is live.

Do you test 3-phase correctly?

All testing to BS 7671 18th Edition including phase rotation, earth fault loop, RCD times, insulation and continuity. Certificates issued electronically.

Can you connect imported machinery?

Yes, including EU-spec machines. We verify suitability, correct any labelling, and install proper isolation and overcurrent protection.

Do you do fault-finding on 3-phase systems?

Yes — thermal imaging, insulation diagnostics, sequence checking. Often cheaper than guessing replacement parts.