Three Phase Power Done Properly. The First Time.
When your equipment, machinery, or commercial premises need three phase power, the installation has to be right. HSQ Electrical designs, installs, and upgrades commercial three phase power systems and switchboards across Melbourne and Victoria.
- REC No. 28315
- Commercial & Industrial Switchboard Specialists
- 10+ Years Experience
- Fully Compliant Installations
- Servicing Melbourne & All of Victoria
Three Phase Power Is The Backbone Of Commercial Operations.
Single phase power is fine for the average home, but commercial premises with high-load equipment, large air conditioning systems, commercial kitchens, or industrial machinery need three phase power to operate safely and efficiently.
A properly designed three phase installation balances loads across phases, prevents nuisance tripping, and ensures your equipment runs at peak efficiency without prematurely failing. A poorly designed installation creates ongoing operational headaches, and serious safety risks.
Complete Three Phase & Switchboard Services.
Three Phase Power Installation
New three phase power installations for commercial premises, workshops, and industrial applications, coordinated with your distributor where required.
Switchboard Design & Installation
Custom commercial switchboard design and installation, sized correctly for your current and future load requirements.
Switchboard Upgrades
Upgrading outdated commercial switchboards to meet current load demands and Australian Standards, including main switch upgrades and circuit additions.
Sub-Metering Installation
Tenancy and equipment sub-metering for accurate cost allocation in multi-tenancy buildings or for energy management programs.
Load Balancing
Analysis and rebalancing of three phase loads to prevent overloading single phases, improving efficiency and reducing the risk of nuisance tripping.
Power Factor Correction
Power factor correction installation to reduce reactive power charges and improve overall system efficiency.
Surge Protection
Switchboard-level surge protection to safeguard sensitive electronic equipment from power spikes and lightning events.
Fault Finding & Diagnostics
Specialist fault finding for three phase systems, identifying and resolving issues quickly to minimise operational downtime.
From Load Calculation to Energisation.
1
Site Assessment & Load Calculation
We assess your existing infrastructure, calculate current and future load requirements, and design accordingly.
2
Detailed Design & Quote
Full schematic design and itemised quote, including any distributor coordination required.
3
Installation
Licensed installation by our commercial electricians, coordinated with your operations to minimise downtime.
4
Testing & Energisation
Full testing, commissioning, and energisation, with complete compliance documentation issued on completion.
Commercial Switchboard Specialists
Properly Sized For Your Load
We calculate current and projected load requirements, ensuring your switchboard handles today’s needs and tomorrow’s growth.
Distributor Coordination
We coordinate with your local network distributor for new connections, supply upgrades, and metering changes.
Compliant Installations
Every installation meets AS/NZS 3000 and Victorian electrical regulations, with complete documentation issued on completion.
Minimised Downtime
We plan switchboard upgrades and energisation to minimise operational disruption, including after-hours work where required.
10+ Years Commercial Experience
Extensive experience with three phase commercial and industrial installations, from small workshops to large facilities.
Three Phase Power FAQs.
How do I know if I need three phase power?
If you have or plan to install large air conditioning, commercial kitchen equipment, machinery, EV charging stations, or solar above ~10kW, you likely need three phase power. We’ll assess your specific situation.
Can my existing single phase property be upgraded to three phase?
In most cases yes, though it requires coordination with your local network distributor and potentially a service upgrade. We manage the entire process.
How long does a switchboard upgrade take?
Most commercial switchboard upgrades are completed within 1-3 days, with the actual energisation changeover scheduled to minimise operational disruption.
Do you provide compliance documentation?
Yes, every three phase installation and switchboard upgrade includes Certificates of Electrical Safety and full test documentation.
Can you provide power factor correction?
Yes. Power factor correction can significantly reduce reactive power charges on your electricity bill, we assess, design, and install PFC equipment for commercial premises.
Related Electrical Services.
Power Your Operation The Way It Should Be Powered.
From new three phase installations to switchboard upgrades and load balancing, HSQ Electrical delivers commercial power infrastructure that’s safe, compliant, and built for the long term.