Allanson Transformers 2721-637 Transformer

Optimized for superior ignition reliability, the Allanson 2721-637 Ignition Transformer is a high-performance ferromagnetic transformer designed specifically for Wayne OE and FH oil burners. Operating with a 120V primary input and a powerful 10000V secondary output, this 250VA unit provides the dependable spark necessary for clean, consistent combustion. Its "small can" 2721 series housing ensures a compact footprint while the midpoint ground configuration offers steady electrical performance. Engineered with high-temperature wire and single porcelain designs, it runs cooler and quieter than standard alternatives. This robust HVAC ignition module replacement effectively replaces older 10-24AB-WF and 421-637 models, meeting stringent RFI and EMI standards for reduced electrical interference. Whether you are performing routine maintenance or a critical repair, this Allanson transformer delivers residential and commercial heating efficiency by maintaining stable arc voltage under demanding conditions.

• Direct Wayne Replacement: Precisely engineered to fit Wayne OE and FH burner configurations for seamless installation.
• Enhanced Thermal Design: Utilizing high-temperature internal wiring, the unit runs cooler to protect sensitive HVAC components.
• Superior RFI/EMI Protection: Built to meet American and European standards, significantly reducing electrical noise interference.
• Durable Construction: Features a single porcelain design and midpoint ground for maximum electrical stability and longevity.

• Can the Allanson 2721-637 replace a standard size can transformer? This is part of the "small can" series; please verify your mounting plate dimensions to ensure a proper fit compared to the larger 421 series.
• What Wayne models is this transformer compatible with? It is specifically designed as a primary replacement for Wayne OE and FH oil burner models.
• Does this unit provide both 120V and 10000V? Yes, it converts a standard 120V input into a 10000V secondary output at 23mA for reliable fuel ignition.

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.

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