You're choosing between two isolation transformers at opposite ends of the power spectrum: one is a compact foot-mount unit aimed at HVAC controls, the other is a moulded industrial transformer with separate insulated windings. The decision comes down to voltage, power, and how much isolation your application requires.
Quick Verdict
If your work involves low-voltage control circuits like relays and gas valves, the Versatile 24V Isolation Transformer with Foot Mount is the direct pick. If you need a dedicated industrial isolation transformer with a higher power rating and a polyurethane enclosure, the Noratel Industrial Isolation Transformer - FR84B-460230 130VA is the one to build around.
At a Glance
| Feature | Noratel Industrial Isolation Transformer - FR84B-460230 130VA | Versatile 24V Isolation Transformer with Foot Mount |
|---|---|---|
| Listed Price | USD 278.95 | USD 33.29 |
| VA Rating | 130 VA | 40 VA |
| Isolation Type | Isolating transformer with separate insulated windings | Isolation transformer with step-down AC-to-AC conversion |
| Notable Characteristics | Encapsulated in self-extinguishing polyurethane | Foot mount, 24V secondary, 50/60Hz, IP20 |
| Best Fit | Higher-power industrial isolation | HVAC and industrial control circuits |
Where Each Product Wins
- Noratel FR84B-460230 130VA wins if you need a 130VA isolating transformer and want the durability of a moulded, self-extinguishing polyurethane case. Its separate insulated windings make it a purpose-built isolation component.
- Versatile 24V foot-mount transformer wins if you need low-voltage AC for HVAC control loads. It combines a foot mount, a 40VA rating, and a 1.66A current rating, plus support for 50/60Hz systems.
Product Notes
Noratel Industrial Isolation Transformer - FR84B-460230 130VA

The Noratel is the heavier-duty option in this pairing. Its isolating-transformer design includes separate insulated windings, and the polyurethane encapsulation gives it a solid protective casing. That combination makes it well suited to industrial isolation roles where a dependable power boundary matters. The 1:30 turns ratio points to a defined voltage relationship, so it is a component you would select for a specific isolation scheme rather than a flexible control transformer. If your setup only needs low-voltage control power, this unit is more than you have to carry.
Versatile 24V Isolation Transformer with Foot Mount for HVAC and Industrial Use

This transformer is built around the 24V AC output that many HVAC controls expect. It takes a 120/208/240V AC primary and steps it down to 24V AC, and its control-power capacity is enough for relay and gas-valve circuits. It also includes a foot mount and is rated for 50/60Hz operation with IP20 protection. The limitation is capacity: it is not meant for higher-power industrial isolation duties. If you need the Noratel's level of isolation and power, this compact unit will come up short.
Final Choice by Use Case
- For low-voltage HVAC controls such as relays, gas valves, and air-conditioning circuits: choose the Versatile 24V Isolation Transformer with Foot Mount.
- For an industrial isolation transformer with separate insulated windings and a polyurethane enclosure: choose the Noratel Industrial Isolation Transformer - FR84B-460230 130VA.
- For equipment cabinets that need a compact foot mount: the foot-mount unit fits.
- For applications that need a robust, higher-capacity isolation component: the Noratel is the one to buy.