Description
The Allanson 2721-654 is an OEM ferromagnetic ignition transformer designed to deliver reliable high-voltage spark energy for Clean Burn oil burner systems and other HVAC combustion applications. It accepts a 120 VAC primary and steps up to 10,000 VAC secondary output at ~23 mA with a ~250 VA rating, providing consistent ignition performance under constant duty. Built with high-temperature internal wiring, midpoint-grounded double-pole construction, and a compact “small can” form, it runs cool and quiet while meeting EMI/RFI noise emission standards. The robust design ensures long service life and dependable ignition for residential and commercial burners.
Key Features
- Primary Voltage: 120 VAC — standard line input for gas and oil ignition systems
- Secondary Output: 10,000 VAC for strong ignition spark energy
- Rated Output: ~250 VA with ~23 mA current capacity for reliable performance
- Double-Pole Ferromagnetic Design: constant-duty construction for sustained operation
- Midpoint-Grounded Core: improves voltage stability and electrical safety
- High-Temperature Internal Wiring: enhances durability under heat cycling
- Meets EMI/RFI Emission Standards: reduced electrical noise and compliant operation






