Description
The Allanson 2721-647 is an OEM ferromagnetic ignition transformer engineered to provide reliable high-voltage spark energy for Wayne Blue Angel and similar oil burner systems. It operates on a 120 VAC primary and steps up to a 10,000 VAC secondary output at ~23 mA with a ~250 VA rating, delivering consistent ignition performance under constant-duty conditions. Built with high-temperature internal windings and a midpoint-grounded double-pole core, this transformer runs cooler and quieter than many generic units while meeting EMI/RFI emission standards for compliant operation. It’s engineered to OEM specifications for long service life and dependable ignition in residential and commercial HVAC applications.
Key Features
- 120 VAC primary voltage — standard line voltage input for common ignition circuits
- 10,000 VAC secondary output with ~23 mA current capability for strong ignition spark
- ~250 VA constant-duty rating designed for sustained operation
- Double-pole ferromagnetic construction for consistent performance under load
- Midpoint-grounded core for improved voltage stability and safety
- High-temperature insulated windings to withstand heat cycling in combustion environments
- Meets American & European EMI/RFI noise suppression standards for reliable, compliant operation
