Best 230V to 24V Transformer Replacements for HVAC Systems
If your heating and cooling system relies on a 24V control circuit, a reliable 230V-to-24V transformer is essential. The following article highlights five NASA-compatible-friendly options that match common Goodman Amana, White-Rodgers, Honeywell, and Robertshew models. Each choice provides 40 VA output, multi-voltage input, and robust construction to ensure consistent performance. Read on to compare specs, installation notes, and what to consider when selecting a replacement transformer for your HVAC setup.
| Product | Brand | Key Features |
|---|---|---|
| ANTOBLE 0130M00138S | ANTOBLE | 208/240V input, 24V output, 40 VA, Class 2, foot mount |
| 40VA HVAC Transformer (Goodman Amana 0130M00138S) | FATKITT | 120/208/240V input, 24V output, 40 VA, multi-brand compatibility |
| 0130M00138S 240V to 24V Transformer | WUYELIN | 208/240V input, 24V output, 40 VA, general HVAC compatibility |
| Norward 240V to 24V Transformer | Norward | 208/240V input, 24V output, 40 VA, high compatibility |
| Lusperi 240V to 24V Transformer | Lusperi | 208/240V input, 24V output, 40 VA, reliable replacement |
ANTOBLE 0130M00138S 240V to 24V Transformer

The ANTOBLE 0130M00138S provides a 24V secondary suitable for furnace and HVAC control circuits. It features a primary voltage of 208/240V at 50/60 Hz and a secondary output of 24V with a 40 VA rating. Classified as a Class 2 transformer, it is designed to meet OEM standards and ensure longevity in demanding environments. The foot-mount design simplifies installation in standard HVAC panels, and its compatibility with Goodman Amana systems makes it a common replacement option for aging or failing units.
Key specifications emphasize durable copper windings and a robust core to minimize voltage drop under load. This makes it appropriate for residential furnaces, air handlers, and related HVAC equipment that require stable 24V control power. As with any transformer replacement, confirm your system’s primary voltage and VA requirements before installation to avoid mismatches.
40VA HVAC Transformer 120/208/240V to 24V

This FATKITT transformer is a direct, plug-and-play replacement for several popular models, including Goodman Amana 0130M00138S and related White-Rodgers, Honeywell, and Robertshaw variants. It supports 120/208/240V inputs and outputs 24V at 40 VA, with five labeled primary wires and included wire nuts for secure connections. The design emphasizes compatibility across a wide range of HVAC brands, providing flexibility for both residential and light commercial systems. The product is built for steady performance and reliable operation in demanding environments.
Installation considerations include verifying the primary input voltage and ensuring secure termination of unused leads. The transformer’s multi-tap capability and color-coded wiring streamline wiring tasks and help maintain code-compliant connections. This makes it suitable for replacement in many Goodman Amana-based controls as well as other brand systems that require a 24V control power source.
0130M00138S 240V to 24V Transformer (WUYELIN)

The WUYELIN transformer is designed to convert 208/240V input to a stable 24V output with a 40 VA rating, satisfying common furnace and HVAC control circuit needs. The no-load voltage is typically around 26.8V–27.5V, which falls within expected ranges for 24V control systems when loaded. The unit is marketed as a practical replacement for multiple models and brands, with a note on straightforward installation. It is suitable for use with thermostats, gas valves, relays, and other control components that require a reliable 24V supply.
Prospective buyers should follow standard safety protocols when installing the transformer, including power disconnection and proper grounding. The unit’s compatibility with various control circuits reduces the need for modifications in many Goodman Amana and related systems, making it a versatile option for homeowners or technicians performing routine replacements.
Norward 240V to 24V Transformer

The Norward transformer matches 208/240V primary input with a 24V secondary and 40 VA rating. It is positioned as a high-compatibility Class 2 transformer suitable for replacing Goodman Amana furnace transformers and similar HVAC control modules. The construction emphasizes durable materials designed for long-term reliability in residential or light commercial HVAC environments, with emphasis on maintaining a steady 24V output for relay boards, thermostats, and gas valves.
Its compatibility profile suggests straightforward substitution for aging or defective units within Goodman Amana systems and other compatible brands. Users should verify lead connections and ensure secure electrical terminations to prevent voltage drops or intermittent control issues.
Lusperi 240V to 24V Transformer

The Lusperi transformer provides 208/240V input and a 24V secondary with a 40 VA rating, designed as a reliable replacement for Goodman Amana furnace transformers. The product emphasizes compatibility with a wide range of HVAC units and a straightforward installation process. It is marketed as suitable for industrial, heating, and air conditioning circuits, reflecting its versatility beyond simple residential use.
Considerations for buyers include confirming the primary voltage, VA rating, and the ability to handle continuous operation in your system. The transformer’s multi-brand compatibility helps simplify procurement for mixed-brand installations, reducing the need for multiple parts.
DFD 0130M00138S 240V to 24V Transformer

The DFD transformer is presented as fully compatible with Goodman Amana furnaces, replacing older units in PF40224-208/240-Volt to 24-Volt configurations. It maintains a 24V secondary with a 40 VA rating, suitable for typical HVAC control circuits, including relays and gas valves. The design emphasizes easy installation within Class 2 safety standards and durability for long-term service in residential or industrial HVAC pathways.
When evaluating this option, buyers should compare the primary voltage tolerance, ensure the unit’s VA rating aligns with the electrical load, and verify mounting compatibility within the existing control panel. The DFD model is positioned as a reliable, industry-standard replacement for several well-known brands.
Buying Guide: Choosing The Right 24V Transformer For HVAC Systems
- Voltage and VA rating: Ensure the transformer accepts your line voltage (208/240V or 120/208/240V) and delivers 24V at or above the required VA (typically 40 VA for many residential HVAC controls). A mismatch can lead to insufficient control power or overheating.
- Brand compatibility: If you have a Goodman Amana system or similar brands (White-Rodgers, Honeywell, Robertshaw), look for direct or broad compatibility to simplify replacement and reduce wiring changes.
- Input options: Multi-tap primary inputs (120/208/240V) offer installation flexibility across different supply setups. Five labeled primary wires with included nuts can aid wiring accuracy and safety.
- Construction quality: Copper windings and a robust core support stability, minimize voltage drop under load and improve longevity in HVAC environments. Class 2 compliance ensures safety and ease of installation.
- Physical mounting: Foot mount vs. wall/ panel mounting affects fit within your control box. Check mounting dimensions and enclosure space before purchase.
- Ease of installation: Color-coded leads and labeled terminals help reduce wiring mistakes. Follow power-disconnection procedures and manufacturer videos or manuals for best results.
- Application scope: Consider whether you need a replacement for residential systems only or for light commercial setups, as some models are designed with broader industrial applications in mind.
- Reliability and safety: Look for transformers with overheat protection, protective enclosures, and certifications that align with local electrical codes to ensure safe operation.
In summary, selecting the right 230V-to-24V transformer hinges on voltage compatibility, VA rating, and brand alignment with your HVAC system. The options listed here provide a spectrum of compatible, reliable replacements suitable for most Goodman Amana-driven control networks and related brands. Always verify model numbers and system requirements before purchasing to ensure a clean retrofit with minimal downtime.