Lennox 99K12 Transformer

As a field-tested Lennox 99K12 Transformer, this OEM component is a critical requirement for industrial HVAC configurations necessitating precise voltage regulation. Designed to step down primary input from 575V to a stable 230V output, this 0.5VA HVAC transformer (also identified as Lennox 99K1201) ensures the reliable operation of control circuits and sensitive electronic components within heavy-duty air conditioning and heating units. Its foot mount transformer design allows for a secure, vibration-resistant installation, while the integrated lead connections simplify integration into existing commercial HVAC electrical systems.

This step-down transformer is engineered for high-demand environments where 600V primary voltage conversion is standard. By maintaining a steady current flow and preventing voltage spikes from reaching secondary components, the Lennox OEM 99K12 reduces the risk of expensive downtime and protects the integrity of the broader equipment assembly. Whether you are performing a routine HVAC part replacement or a complex system diagnostic, this 575V to 230V unit provides the exact electrical specifications required by the original manufacturer.

• OEM Compatibility: Precision-matched for Lennox systems as a direct replacement for 99K1201, 37J17, and 54G3101, ensuring seamless mechanical and electrical fitting.
• Industrial-Grade Conversion: Efficiently handles 575V to 230V step-down requirements for high-voltage industrial and commercial applications.
• Integrated Protection: Features a robust construction designed to handle technical-grade power distribution without compromising sensitivity.
• Optimized Form Factor: Compact footprint with foot mounting allows for easy retrofitting in tight electrical cabinets.
• Reliable Performance: Built to withstand the environmental stressors common in HVACR mechanical rooms.

Is the 99K12 interchangeable with the 99K1201?
Yes, the Lennox 99K12 and the 99K1201 are identical parts. They share the same 575V/230V electrical profile and mounting configurations.

What is the maximum VA rating for this specific transformer?
This unit is rated at 0.5VA, specifically engineered for low-load control signaling and specialized circuit protection within larger industrial HVACR frameworks.

Does this unit include internal fuses?
This model is typically utilized within systems that require external current-limiting protection, such as Class CC fuses, to maintain safe operating parameters at 600V inputs.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.