The Allanson 2721-448 is a factory-built OEM ignition transformer designed to provide reliable high-voltage spark energy for gas or oil burner ignition systems in HVAC equipment. It runs on a 120 VAC primary and delivers a 10,000 VAC secondary output to support consistent ignition performance across residential, commercial, and light industrial applications. With a robust ferromagnetic design, midpoint grounding, and high-temperature internal wiring, the 2721-448 operates quietly and cool under constant duty while meeting EMI/RFI emission standards. Engineered to OEM specifications, it offers long service life and compatibility with specified burner and control systems.
Key Features
- 120 VAC primary voltage — standard line input for HVAC ignition circuits
- 10,000 VAC secondary output for dependable ignition spark
- ~250 VA rated output meeting typical burner ignition power needs
- Ferromagnetic midpoint-grounded design for stability and safety
- High-temperature internal windings for durability under repeated heat cycling
- Constant-duty construction for sustained operation
- Meets EMI/RFI noise emission standards for cleaner electrical performance
