Best 208 to 230 Transformer Solutions for 208V to 230V Applications
Answering buyers looking to step 208V up to 230V, these transformers cover common commercial and HVAC uses. The top picks emphasize reliability, compatibility with 50/60 Hz systems, and suitability for electronics or equipment that require a 230V secondary from an 208V source. Each entry notes who it’s best for and any notable limitations to consider before purchase.
| Product | Primary → Secondary | Best For | Notes |
|---|---|---|---|
| 1-Phase Buck and Boost Transformer | 208V → 230V | Single-phase loads, small equipment bays | Custom options available; no returns on transformers |
| 3 Phase Delta Buck/Boost Step-Up (31.25/46/83.33A) | 208V → 230V | Three-phase industrial circuits | Custom options; safety policy applies |
| 240V to 24V 40VA Transformer | 208/240V → 24V | HVAC controls and furnaces | Includes mount; copper windings and protection features |
| 3 Phase Delta Buck/Boost Step-Up (20.83/31.25/62.5A) | 208V → 230V | Smaller three-phase loads | Custom options; safety policy applies |
| Functional Devices TR50VA008 Transformer | Various inputs to 120V output | Control circuits and breakout panels | Compact, US-made; mounting options |
1-Phase Buck and Boost Transformer

Brand: Electronics
Features include customizable options to fit specific needs and safety statements about returns. It converts 208V primary to 230V secondary with selectable amperage (62.5, 130, or 208.33 A) at 50/60 Hz. Best for single-phase equipment needing a precise 230V supply from an 208V source. Caution: transformers may have strict return policies after shipment.
3 Phase Delta Buck/Boost Step-Up Transformer

Brand: Electronics
Features include 208V to 230V conversion with selectable amperage options (31.25, 46, or 83.33 A) for three-phase loads. Best for industrial facilities or panels that require a delta configuration. Caution: returns are restricted; confirm compatibility with equipment before ordering.
240V to 24V 0130M00138S Transformer

Brand: (Unknown)
Features: 40 VA, input 208/240V, output 24V AC; suitable for Goodman Amana furnaces and HVAC control circuits. Best for HVAC control replacements or legacy furnace projects. Caution: check model compatibility with your furnace’s control board and mounting requirements.
3 Phase Delta Buck/Boost Step-Up Transformer (Smaller Amps)

Brand: Electronics
Features mirror the 208V to 230V step-up, with amperage options at 20.83, 31.25, or 62.5 A. Best for compact three-phase loads or renovation projects in industrial spaces. Caution: similar safety and return caveats apply; ensure correct phase and frequency handling.
Functional Devices TR50VA008 Transformer

Brand: Devices
Features: 50 VA transformer converting 480/277/240/208 to 120 Vac for circuits and control panels; includes foot and dual-threaded hub mounting. Best for control circuits and panel installations in US-made devices. Limitation: rated 50 VA, so it’s best for low-power control applications.
Buying Guide
What load type are you powering?
Single-phase transformers are ideal for small equipment or control circuits. Three-phase units suit industrial panels and larger equipment. Choose based on total VA and the number of phase connections your system requires.
What voltage levels must be supported?
Verify input and output voltages match your supply and equipment. For 208V to 230V needs, ensure the transformer maintains regulation under expected load conditions and accounts for voltage drop along cables.
Are mounting and enclosure requirements important?
Some models include foot or hub mounting, which simplifies installation in equipment racks or control panels. Consider enclosure ratings and temperature ratings if your environment is harsh or confined.
What about safety and compliance?
Many transformers come with safety notices about returns or destruction after manufacturing to ensure safety. Review factory and warranty terms to know limits on service or replacement options if a unit fails.
Installation and compatibility questions
Confirm transformer impedance, isolation, and protection features (voltage, current, and thermal protections) align with your system. For HVAC and furnace replacements, ensure the secondary is compatible with control boards and relays.
FAQ
- Do these transformers support both 50 Hz and 60 Hz? Yes. Several models list 50/60 Hz operation, making them suitable for a broad range of regional power systems.
- Can I run multiple devices from a single transformer? It depends on the transformer’s VA rating and the load of each device. Do not exceed the stated VA to avoid overheating or voltage drop.
- Are there safety restrictions on returns? Some models indicate returns are not accepted due to safety concerns once manufactured. Check each product’s stated policy before purchasing.
- What’s the difference between single-phase and three-phase transformers? Single-phase units power one leg of a circuit, while three-phase devices support three simultaneous power legs, common in industrial settings.
- How do I determine the right amperage for my load? Compare your equipment’s startup and running currents. Choose a transformer with an amperage rating equal to or higher than the peak load to avoid voltage sag.
- Is mounting included? Some models feature foot mount or dual-threaded hub mounting for easier installation in control panels or equipment racks.
Note: This article presents options based on product listings and stated features. Always verify compatibility with your specific equipment and project requirements before purchase.