Power supply is the first question we ask before quoting any commercial refrigeration unit. Get it wrong and you've ordered an expensive piece of equipment that physically can't run at your premises. Here's the simple version.
Single-phase (220-240V)
This is what most Indian commercial premises run on by default — kirana shops, small restaurants, parlours, offices. The electrical supply comes through a single live wire + neutral + earth, at 220-240 volts.
Which products run on single-phase:
- Almost all deep freezers up to 700L
- Most visi coolers up to 600L (single and double-door variants)
- All cold drink fridges
- Small water coolers up to 80L
- Most ice cream freezers up to 500L
- All water purifiers
3-phase (400-415V)
3-phase supply delivers higher power through three live wires + neutral + earth at higher voltage. Industrial premises, large hotels, factories, large institutional kitchens, and modern hospitality units usually have 3-phase.
Which products need 3-phase:
- Large water coolers 100L+ with high LPH cooling rate
- Large SS kitchen freezers over 800L
- Triple-door visi coolers and large display units
- Cold rooms and walk-in freezers (always 3-phase)
- Custom commercial fit-outs with multiple chillers running off one panel
How to check what you have
Look at your electrical meter or main switchboard. If you see a single MCB (Main Circuit Breaker) labelled like "single phase 32A" — you have single-phase. If you see three MCBs grouped together labelled "R, Y, B" or "L1, L2, L3" — you have 3-phase.
If you're not sure, ask the building electrician. Don't guess — running a 3-phase unit on single-phase will destroy the compressor within hours.
What if I have single-phase but need 3-phase?
Three options, ranked from cheapest to most expensive:
- Buy a smaller single-phase unit — often the simplest. Many buyers over-size their requirement; a smaller efficient single-phase model may actually meet your needs.
- Apply for 3-phase connection from your electricity board — costs depend on state (MSEDCL in Maharashtra) and your building. Typically ₹10,000-50,000 plus monthly fixed charge increase. Takes 2-6 weeks to commission.
- Use a phase converter — least preferred. They work but reduce efficiency and add a failure point. Only consider for short-term needs.
One thing to never skip — voltage stabiliser
Single-phase or 3-phase, every commercial refrigeration unit in India should run through a properly-rated voltage stabiliser. Indian commercial supply is rarely a perfect 240V or 415V; surges and drops are common and they kill compressors. A ₹3,000 stabiliser protects a ₹50,000+ unit.
We'll check before you buy
Tell us your business type and we'll ask the right questions to confirm what power you have, what unit size makes sense, and whether you need a stabiliser. Call +91 99115 50822 on WhatsApp or use our enquiry form.
