Best 208 to 460 Transformer Solutions for HVAC and Industrial Use
Choosing the right transformer to convert 208, 230, or 460-volt service to 120/24V control circuits is essential for reliable HVAC and industrial equipment. The following selections cover a range of common voltages, power ratings, and industrial-grade builds from trusted brands. Each entry includes a brief overview of primary and secondary voltages, power rating, and compatibility notes to help you compare options quickly.
| Product | Brand | Primary Voltage | Secondary Voltage | VA Rating |
|---|---|---|---|---|
| Transformer, 50VA, 208/230/460V To 115VAC | Schneider Electric | 280 V-AC, 230 V-AC, 460 V-AC | 115 VAC | 50 VA |
| LVO 511-5056 Transformer, 208/230/460 to 120/24V | LVO | 208/230/460 V | 120/24 V | 250 VA |
| Fits LVO 3516040… 250VA Transformer, 208/230/460 to 120/24V | Generic | 208/230/460 V | 120/24 V | 250 VA |
| Functional Devices TR50VA008 Transformer | Functional Devices | 480/277/240/208 V | 120 V | 50 VA |
| Siemens MT0150A Industrial Power Transformer | SIEMENS | 240 x 480, 230 x 460, 220 x 440 V | 120/115/110 V | 150 VA |
Use this quick reference to narrow down choices by primary voltage compatibility and output needs. The five products below are selected for relevance to 208 to 460-volt service scenarios and for offering robust performance in HVAC or industrial installations.
Schneider Electric 50VA 208/230/460V To 115VAC
This 50 VA transformer handles three primary voltage inputs—208/230/460 VAC—and steps down to a standard 115 VAC secondary for control circuits. The device is compact, suitable for small to medium HVAC controls, and designed by Schneider Electric, a well-known name in electrical systems. Its 3-phase designation in the model hints at specific installations, and users should verify compatibility with their control boards and enclosure space before mounting.
LVO 511-5056 Transformer, 208/230/460 to 120/24V
This 250 VA transformer covers a broad voltage range: 208/230/460 V input to dual outputs of 120 V and 24 V. It’s described as a food-service related product in its listing but is commonly used in HVAC and control environments where reliable mid-to-large power transformers are required. Users will benefit from a robust core and windings suitable for continuous operation, with installation considerations including venting, clearance, and mounting orientation for optimum cooling.
Generic 250VA 208/230/460 to 120/24V Transformer
This unit matches common 208/230/460-to-120/24 V needs with a 250 VA rating. Generic models often appeal to installations requiring economical replacements or retrofits for older control panels. When selecting, verify the exact secondary voltage tolerance, mounting compatibility, and lead configuration to ensure secure, code-compliant hookups in service panels or equipment cabinets.
Functional Devices TR50VA008 50VA Transformer
This 50 VA transformer from Functional Devices is designed for 480/277/240/208 V primary inputs with a 120 VAC secondary. It also emphasizes mounting options for foot and dual-threaded hub installations, making it suitable for industrial control panels and electrical enclosures. Consider the environment and the transformer’s thermal profile, especially in spaces with limited airflow or high ambient temperatures.
Trane 75 VA Transformer High-Voltage Primary
This Trane transformer is a genuine OEM part with a 75 VA rating and a high-voltage primary around 460-575 V, with a 24 V secondary. OEM parts are chosen for compatibility with specific HVAC equipment lines, ensuring fit, electrical characteristics, and safety standards consistent with original equipment. It’s best suited for replacement scenarios where exact OEM compatibility is required to preserve system performance and warranty terms.
Siemens MT0150A 150VA Industrial Transformer
The Siemens MT0150A delivers 150 VA with multiple primary configurations (240 x 480, 230 x 460, 220 x 440 V) and a 120/115/110 V secondary. Built with silicon steel-laminated cores and copper windings, it emphasizes efficiency and durability for demanding industrial or large HVAC installations. This model is well-suited for systems needing solid regulatory compliance and consistent performance across varying supply conditions.
40VA HVAC Transformer 208/240V to 24V
This 40 VA transformer is a direct replacement for several common 24V control transformer models, supporting 208/240V inputs with a 24V secondary. It aims at Good-man Amana, White-Rodgers, Honeywell, and similar brands, making it a practical choice for residential and light commercial HVAC systems. The listing notes broad compatibility and straightforward installation, with included wiring hardware for safe termination. Consider enclosure size and lead length when planning replacement.
Larson Electronics 1-Phase Buck/Boost Transformer
This 1-phase buck/boost device converts 208V to 240V for loads up to 23.4 A, offering a practical solution when a precise voltage alignment is needed between distribution and equipment. It’s a specialized tool for sites where product compatibility and exact voltage matching prevent control circuit issues. Note that returns on transformers are restricted for safety reasons, so verify voltage and current requirements before ordering.
Buying Guide: Key Considerations And Comparisons
When selecting a 208 to 460-volt transformer, balance several factors. Start with the primary voltage range, ensuring compatibility with your service (208, 230, 240, 460, etc.). Check secondary voltage, usually 24, 120, or 110/115 V for control circuits. Power rating (VA) should cover the total load of relays, controllers, and any attached devices.
Other important aspects include enclosure type, mounting style (foot, hub, surface), and cooling/ventilation. For industrial environments, consider efficiency and curve behavior under load, as well as insulation class and thermal protection features. OEM compatibility matters for certain HVAC systems, while generic units may offer cost advantages but require careful verification of wire leads and permitted installation methods.
Installation considerations: verify the transformer’s wiring configuration, ensure safe termination with color-moded leads, and follow applicable electrical codes. If space is limited, measure the enclosure before selecting a compact unit. For variable loads, a transformer with a larger VA rating provides headroom and reduces voltage drop during peak demand. Finally, confirm warranty terms and compatibility with the control board or motor control center to avoid compatibility issues.