Choosing the Right Power Supply: Single Phase vs. Three Phase for Tanning Salons

Opening a salon or adding new beds? One of the most common technical questions we get is: “Do I need single phase or three phase power?” And it’s a fair question — because making the wrong choice can delay installation, limit your setup, or worse, overload your electrical system.

In this guide, we break down the difference between single phase and three phase power in simple terms, explain how it applies to tanning salons, and help you determine what your location can support.

What’s the Difference Between Single and Three Phase Power?

Put simply, single phase power is what you’ll find in most homes and small businesses. It delivers electricity through one alternating current (AC). It’s reliable for running typical appliances — and in many cases, even a single tanning bed.

Three phase power, on the other hand, delivers electricity through three alternating currents that reach their peaks at different times. This results in more consistent power delivery, especially for high-demand equipment like multiple tanning beds running at once.

Think of it like this:

Why It Matters for Your Salon

Your power supply doesn’t just affect how many beds you can run — it determines which models you can install, how stable your operation is, and how safe your electrical setup will be.

For example:

• Running 3–4 beds on a single phase system may lead to overloads or tripping fuses.
• Choosing a bed that requires three phase when you only have single phase access can delay installation and rack up electrician costs.
• Some advanced or hybrid sunbeds may only be compatible with three phase power due to higher wattage requirements.

Ultrasun beds are designed with flexibility in mind But it’s still essential to check in advance.

How to Check What Power You Have

Not sure what kind of power supply your location has? Here’s how to find out:

1. Check your electrical meter or fuse box
   • A single phase setup usually has one fuse or circuit breaker.
   • A three phase setup typically has three fuses, often labeled L1, L2, L3.
     
     
2. Ask your electrician or building manager
   • If in doubt, always consult a professional — especially before committing to a new machine.
     
     
3. Still unsure?
   • Contact our team with your building info and planned setup. We’re happy to check your requirements and recommend the best fit.
     
     

Which Ultrasun Beds Use Single or Three Phase?

Single phase (left) and three phase (right)

Most Ultrasun beds are available in both configurations, though larger beds require three phase for optimal performance.

Here’s a quick example:

• Ultrasun Q6, E7: Often configured for single phase (ideal for small salons)
• Ultrasun Q18, i9: Typically require three phase 

💡 Tip: If you’re looking for the most energy-efficient setup, also check out our blog on How to Keep Your Sunbed in Top Condition — regular maintenance reduces unnecessary power draw. 

What If You Don’t Have Three Phase?

If your building is wired for single phase only, don’t worry — there are still plenty of options. Ultrasun offers multiple bed models suitable for single phase salons, and we can help you find a solution that fits your setup.

In some cases, an upgrade to three phase is worth considering — especially if you're planning future expansion. It allows you to run more beds, reduce voltage drops, and prepare for higher-performance machines.

Final Takeaway

Power might not be the most exciting part of running a tanning salon — but get it wrong, and it becomes a major headache. Choosing between single phase and three phase is all about understanding your space, your goals, and your equipment.

If you’re unsure which supply you have, or want help selecting a bed that fits your existing setup, our team is here to help. Reach out to our team with your salon’s details, and we’ll make sure you get a recommendation that works — safely, efficiently, and future-proof.