Three Phase Switchboards Sydney

Three-phase power is the answer when a single-phase board can no longer cope — large homes, workshops, commercial kitchens, ducted air conditioning, pool heating, machinery and EV charging all benefit from the extra capacity and balanced load. Sydney Power Group (SPG) installs and upgrades three-phase switchboards across Sydney.

Moving to three-phase supply involves the consumer mains, metering and network connection, all of which legally require a Level 2 ASP. SPG is authorised across Ausgrid, Endeavour Energy and Essential Energy, so we can deliver the board and coordinate the supply in one project.

When You Need Three-Phase

If you are constantly tripping breakers, adding high-draw equipment, or planning solar, batteries or fast EV charging, single-phase supply may already be maxed out. A three-phase board spreads demand across three supply phases, reducing strain and giving you headroom to grow.

We assess your current load and future plans, then design a board sized and configured to suit, with proper phase balancing so no single phase is overloaded.

Level 2 ASP End To End

Upgrading to three-phase almost always involves new consumer mains, metering changes and a supply upgrade — work only a Level 2 ASP can perform and coordinate with the network. Because SPG holds this accreditation across all three NSW networks, you deal with one team from board to supply.

We fit modern protection throughout, from circuit breakers to surge protection, and label every phase and circuit clearly.

Upgrade To Three-Phase

SPG installs and upgrades three-phase switchboards across Greater Sydney and NSW for residential, commercial and light industrial sites. See also our commercial switchboards and industrial switchboards services.

Call 0466 125 125 or book a free on-site quote to plan your three-phase upgrade.