Packard PM12440 Transformer

The Packard PM12440 is a heavy-duty 120V to 24V step-down transformer engineered for reliable performance in residential and commercial HVAC control circuits. Rated at 40VA, this Class 2 transformer provides the necessary current for thermostats, gas valves, and integrated furnace controllers. Built for longevity, the unit is designed for over 60,000 hours of continuous operation under standard load conditions. The multi-mount configuration, featuring a versatile 4x4 plate and foot mounts, allows for seamless installation in junction boxes or direct appliance mounting. With 8-inch color-coded wire leads, it simplifies low voltage wiring and ensures secure connections during field replacement. This UL-recognized component is a direct solution for technicians requiring a robust 24V control transformer that resists overheating and maintains voltage stability across demanding duty cycles.

• Multi-Mount Versatility: Includes plate and foot mounting options to accommodate various furnace transformer housing configurations.
• Consistent Output: Delivers a stable 24V secondary output from a standard 120V primary source, protecting sensitive electronics.
• Extended Service Life: Industrial-grade windings designed for 60,000+ hours of service in high-cycle environments.
• Pre-Stripped Leads: 8-inch wires save time during emergency service calls and HVAC repairs.

Common Questions

Can I use this 40VA transformer to replace a 30VA unit?
Yes, you can upgrade to a higher VA rating like the Packard PM12440 as it provides more available power (apparent power) for the circuit, though the voltage must remain 24V.

Is this transformer compatible with Nest or Ecobee thermostats?
This 24V HVAC transformer provides the standard power requirements for most smart thermostats, provided the total load of the system does not exceed 40VA.

What does a Class 2 rating mean for this installation?
The Class 2 rating indicates the unit meets specific safety standards regarding power limits to reduce the risk of fire and electric shock in low-voltage circuits.

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.