Allanson Transformers 2721-628G Transformer

The Allanson 2721-628G ignition transformer is a critical ferromagnetic transformer engineered for precision performance in Beckett A, AF, and AFG burners. This 120V ignition transformer delivers a reliable 10,000V secondary output at 23mA, featuring a mid-point ground configuration to maintain stable arc characteristics during the combustion cycle. As a direct 101332 replacement transformer, it eliminates field adaptation issues by adhering to original equipment manufacturer mounting and electrical specifications. The unit is constructed with high-temperature wire and a single porcelain design, which facilitates cooler operation and higher thermal efficiency in demanding residential or commercial boiler environments. Technicians often prefer this Beckett burner ignitor for its superior EMI and RFI protection, ensuring minimal interference with modern electronic primary controls while providing a consistent, high-energy spark for clean ignition.

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Key Benefits for Technicians

• Universal Beckett Compatibility: Specifically designed for seamless integration with Beckett A, AF, and AFG oil burners.
• OEM Drop-In Replacement: Serves as the precise substitute for part numbers 101332, 2727-657, and 2721-657.
• Optimized Thermal Management: Features a small-can 2721 series design that runs quieter and cooler than standard universal units.
• Electrical Reliability: High-performance 250 VA rating ensures a constant-duty ignition source for industrial and residential applications.
• Noise Suppression: Meets stringent standards for electromagnetic interference protection, safeguarding nearby sensitive HVAC electronics.

Common Questions

Is this transformer compatible with Beckett AFG burners using electronic ignitors?
This is a ferromagnetic transformer. While it is a direct fit for Beckett AFG housings, always confirm if your specific control circuit requires a solid-state electronic ignitor or if this traditional copper-wound transformer is the correct legacy match.

Does this unit include the mounting gasket?
Yes, the Allanson 2721-628G typically includes the necessary mounting gasket to ensure a proper seal against the burner housing, preventing air leaks and ensuring correct terminal alignment.

What is the difference between this and the 10SAY-04?
The 2721-628G is a specialized small-can series transformer. It is electrically equivalent to many 10,000V/23mA units but features the specific footprint required for Beckett "A" style burner bases.

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.