The Allanson 2721-411 is a dependable OEM ferromagnetic ignition transformer engineered for ABC and Sunray gas/oil burner systems. It operates on 120 VAC primary power and steps up to a 10,000 VAC secondary output, delivering the high-voltage spark energy needed for reliable ignition performance. Built with a midpoint ground and high-temperature internal wiring, this transformer runs cooler and quieter while meeting EMI/RFI emission standards for safer, long-term operation. It’s a compact, constant-duty unit designed to meet burner manufacturer specifications and provide consistent ignition in residential and commercial HVAC applications.
Key Features
- 120 VAC primary voltage — standard line input for HVAC ignition circuits
- 10,000 VAC secondary output with ~23 mA current for strong ignition spark
- 250 VA power rating suited for demanding burner applications
- Mid-point grounded ferromagnetic design for stability and safety
- High-temperature insulated windings for long service life under heat cycling
- Compact constant-duty construction runs cooler and quieter than generic units
- Meets American & European EMI/RFI noise emission standards for reliable, compliant performance
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