3 Phase Power Supply - NJM Electrical & Mechanical

3 Phase Power

Supply

When your property demands robust, high-capacity electricity, whether to power industrial machinery, large HVAC systems, or other heavy loads, a 3-phase power supply is the the smart solution. At NJM, we design, install, upgrade, and maintain three-phase electrical systems tailored to commercial and industrial environments.

Unlike single-phase setups that can struggle under heavy or fluctuating loads, 3-phase power delivers electricity on three separate alternating currents, each offset by 120°. This allows for smoother, more consistent power delivery, helps reduce risk of overload, and allows equipment to run more efficiently and reliably. It also enables you to transmit more power without significantly increasing conductor size.

Why NJM?

Fully qualified team of electricians.

Experience in commercial and industrial Installation

Nationwide coverage; UK, Ireland and the Scottish isles.

Full design & installation

We assess your site’s power needs, handle switchgear selection, load balancing, panel upgrades, and full wiring for new or existing buildings.

Upgrades & retrofits

If you already have three-phase in place but need more capacity or to support additional equipment, we can expand or reconfigure systems to accommodate your needs.

Maintenance & testing

We carry out routine inspections, load balancing checks, verification of distribution boards, earthing system checks, and compliance testing to keep everything safe and reliable.

Coordination with network operators:

For commercial or industrial meters or incoming supplies, we liaise with providers/ network operators to ensure smooth connection, permit approvals, and compliance with supply regulations.