Does Commercial Induction Need Three Phase? Full Guide | 2026

Induction has moved from a novelty to a genuine option in Australian commercial kitchens, driven by three things: tenancies where gas is unavailable or not permitted, rising attention to kitchen heat load and staff comfort, and equipment that has finally become powerful and robust enough for real service.

It is not, however, a universal replacement for gas. This guide sets out honestly how induction works, where it clearly wins, where gas still has the advantage, and — most importantly — the electrical supply reality that determines whether induction is even possible on your site. Browse the current range of commercial induction cooking equipment at Commercial Kitchen Appliances.

Does commercial induction need three phase power?

Often, yes. Smaller benchtop induction plates may run on a standard 10 A outlet, higher-output single plates typically need a dedicated 15 A circuit, and multi-zone or drop-in commercial units frequently require three-phase. A full induction cookline can demand considerably more electrical capacity than a site currently has.

This is the decision that determines whether induction is viable at all, so settle it first. Have a licensed electrician assess your switchboard and available supply before you specify equipment — a supply upgrade can occasionally cost more than the appliances.

How induction actually works

An induction hob contains a coil carrying alternating current, which generates a rapidly changing magnetic field. When a ferrous (magnetic) pan sits on the surface, that field induces electrical currents within the base of the pan itself, and the pan's own resistance turns those currents into heat.

The important consequence: the pan is the heating element. The hob surface stays comparatively cool, warmed only by contact with the hot pan rather than by generating heat itself.

That is why induction is so efficient. A gas burner sends a large proportion of its energy around the pan and into the room; induction puts energy almost entirely into the vessel. Efficiency figures around 85–90% are commonly cited for induction against considerably lower figures for gas — the exact numbers vary by equipment and conditions, but the direction is not in dispute.

Induction vs gas — the honest comparison

Where induction wins:

• Kitchen heat load. Far less waste heat radiates into the room. In a hot Australian kitchen this is a material difference to working conditions, and it reduces the load on air conditioning.
• Extraction demand. With less radiant heat to remove, ventilation requirements are typically lower than for an equivalent gas line. On a constrained site this can be decisive.
• Precision and repeatability. Power levels are set numerically and repeat exactly. For delicate sauces, chocolate, custards and anything temperature-critical, this is a real advantage over judging a flame.
• Speed. Water boils noticeably faster on comparable induction than gas, because so little energy is wasted.
• Safety and cleaning. No open flame, no combustion products, and a flat surface that wipes down. Spills don't bake onto burner heads and trivets.
• Sites without gas. Many shopping-centre tenancies, mixed-use buildings and new fit-outs either lack a gas supply or prohibit it. Induction is often the only route to a serious cookline.

Where gas still wins:

• Cookware freedom. Gas heats anything. Induction requires ferrous cookware — aluminium, copper and most non-magnetic stainless will not work.
• Flame-dependent technique. Charring directly over flame, and traditional wok work where flame contact up the vessel walls is part of the method.
• Upfront cost. Induction equipment generally costs more to buy.
• Electrical infrastructure. This is the big one, covered below.
• Resilience. Gas keeps working in a power outage; induction does not.

Cookware — the constraint people discover too late

Induction only works with cookware that has a ferrous (magnetic) base. Cast iron and magnetic stainless steel work well. Aluminium, copper and non-magnetic stainless do not, unless they have a bonded magnetic base layer.

The simple test: if a magnet sticks firmly to the base, it will work.

Two practical points:

• Budget for cookware in the changeover. Converting a gas kitchen to induction may mean replacing a substantial part of your pan inventory. Cost that in from the start rather than discovering it at commissioning.
• Base flatness and diameter matter. Induction couples best with a flat base well matched to the hob's coil diameter. A warped or undersized pan performs poorly and heats unevenly.

Electrical supply — the real deciding factor

This determines whether induction is viable on your site, and it must be checked before anything else.

Induction equipment draws substantial power. Smaller benchtop plates may run on a standard 10 A outlet, but higher-output single plates typically require a 15 A circuit, and multi-zone or drop-in commercial units frequently require three-phase power.

The consequences are worth stating plainly:

• A full induction cookline can require significantly more electrical capacity than the site currently has, and a supply upgrade can be expensive — occasionally more than the equipment.
• Diversity matters: several induction units running simultaneously at full power is a very different load from one.
• Have a licensed electrician assess your switchboard and available supply before you commit. This single step prevents the most expensive surprise in induction fit-outs.

Formats available

• Benchtop induction plates. Single-zone portable units. The easiest entry point — front-of-house cooking, buffets, function service, extra capacity at peak, or simply trialling induction before committing. The range includes ceramic-glass and Schott Ceran hob variants from Benchstar, plus units from Electmax and Anvil.
• Multi-zone benchtop units. Two or more zones in one appliance for small kitchens and secondary stations.
• Drop-in / built-in units. Integrated into a bench or cookline for a permanent installation.
• Induction woks. Purpose-built units with a recessed bowl matched to a ferrous wok — see the IWOK induction wok range and our wok burner buying guide, which compares gas and induction wok cooking directly.

Where induction wins outright

Some situations point clearly to induction regardless of preference:

• Front-of-house and display cooking. No flame, no combustion products, minimal radiant heat — safe and comfortable metres from guests. Live stations, buffets, chef's tables and demonstrations.
• Sites with no gas. Shopping-centre tenancies, heritage buildings, commercial tenancies inside mixed-use buildings, and many new developments.
• Small or poorly ventilated tenancies. Lower extraction requirements can make a marginal site workable.
• Function and mobile catering. Portable plates run wherever there is adequate power, with no gas bottles to transport, store or certify.
• Temperature-critical work. Chocolate, custards, emulsified sauces and anything needing precise, repeatable low heat.
• Kitchens with a heat problem. If your kitchen is genuinely uncomfortable in summer, converting even part of the line to induction makes a noticeable difference.

Equally, a traditional high-volume Asian kitchen with an established gas supply and engineered extraction has less to gain, and a kitchen relying on flame-charring technique should keep gas. Many kitchens end up mixed — gas for the primary cookline, induction for sauce work, front-of-house and overflow capacity. That is a sensible outcome, not a compromise.

For the gas side of the comparison, see our guides on gas vs electric cooktops and what to look for when buying a commercial cooktop.

What to check before buying

• Power rating and supply — verified by a licensed electrician against your switchboard.
• Number and diameter of zones against your pan sizes.
• Power-level granularity — more steps means finer control for delicate work.
• Hob surface material. Ceramic glass is standard; higher-specification glass such as Schott Ceran is more resistant to thermal shock and impact. In a busy kitchen, surface durability matters.
• Cooling fan and filter. Induction electronics need cooling. Check the fan intake is accessible and can be kept clear of grease — a blocked filter is the most common cause of induction unit failure.
• IP rating / spill resistance for wash-down environments.
• Pan-detection and auto-shutoff for safety.
• Ventilation clearance around the unit for electronics cooling.

Warranty, finance and support

Commercial cooking equipment is manufacturer-backed with warranty terms that vary by product and brand — check the terms for your specific model on our warranty information page. Note that induction electronics generally require correct installation and adequate cooling airflow for warranty to apply.

Equipment finance is available through SilverChef, with approvals up to around $65,000 typically completed in about five minutes. Commercial Kitchen Appliances ships nationally from our Sydney headquarters in Granville, with partner warehouses in Melbourne, Brisbane, Adelaide and Perth.

Is induction right for your kitchen?

Start with the electrical assessment — if the supply isn't there and an upgrade isn't affordable, the rest is academic. If it is viable, weigh the heat-load and extraction savings against cookware replacement and upfront cost. And consider a mixed line rather than treating it as all-or-nothing: a couple of induction zones alongside gas often delivers most of the benefit at a fraction of the disruption.

Browse the full range of commercial induction cooking equipment, or talk to our team about whether induction suits your site.

Frequently asked questions

How does commercial induction cooking work?

An induction hob contains a coil carrying alternating current, generating a rapidly changing magnetic field. When a ferrous pan is placed on the surface, that field induces currents within the pan's base, and the pan's own resistance converts them to heat. The pan is effectively the heating element, so the hob surface stays comparatively cool and very little energy is wasted heating the room.

Is induction better than gas for a commercial kitchen?

It depends on the kitchen. Induction wins on efficiency, kitchen heat load, extraction demand, precision, cleaning and safety, and is often the only option on sites without gas. Gas wins on cookware freedom, flame-dependent techniques like charring and traditional wok work, lower upfront cost, and continuing to work during a power outage. Many kitchens run a mix, using gas on the primary cookline and induction for sauce work and front-of-house.

What cookware works on commercial induction?

Only cookware with a ferrous (magnetic) base — cast iron and magnetic stainless steel work well, while aluminium, copper and non-magnetic stainless do not unless they have a bonded magnetic base layer. The simple test is whether a magnet sticks firmly to the base. Budget for cookware replacement when converting a gas kitchen, and check that pan bases are flat and well matched to the hob's coil diameter.

Does commercial induction need three-phase power?

Often, yes. Smaller benchtop plates may run on a standard 10 A outlet, higher-output single plates typically need a 15 A circuit, and multi-zone or drop-in commercial units frequently require three-phase. A full induction cookline can demand significantly more electrical capacity than a site currently has. Always have a licensed electrician assess your switchboard and available supply before committing.

Does induction reduce ventilation requirements?

Typically yes. Because induction produces far less radiant waste heat than gas and no combustion products, there is less hot air to remove, so extraction requirements are generally lower than for an equivalent gas line. You still need extraction for cooking vapour, grease and steam, and the canopy must be assessed by a qualified person — but on a constrained site the reduced load can be the difference between a workable fit-out and an unworkable one.

Why did my induction unit shut down mid-service?

The most common cause is inadequate cooling. Induction electronics rely on a cooling fan, and if the intake or filter becomes blocked with grease and dust the unit will reach thermal cut-out and shut down to protect itself. Keep the fan intake clear and clean as part of scheduled maintenance, and ensure the manufacturer's ventilation clearances around the unit are respected.