Allanson Transformers 2721-452 Transformer

When you are troubleshooting an ignition failure on an ABC D & LC burner, the Allanson 2721-452 ignition transformer is the specific field replacement engineered for these high-demand applications. This 120V primary, 10,000V secondary ferromagnetic unit delivers a consistent 23mA of ignition power, ensuring reliable fuel-to-air combustion even in cold-start environments. Designed as part of the Small Can Series, it features a mid-point ground configuration and high-temperature wire insulation that allows the unit to run cooler and quieter than standard aftermarket alternatives.

For technicians, the Allanson 2721-452 is a direct replacement for Webster 313-26AB65 and France 5LAY-11, minimizing downtime during emergency service calls. The single-porcelain design and superior EMI and RFI protection meet both American and European noise emission standards, preventing interference with modern burner controllers or flame sensors. Durable construction ensures consistent performance under the thermal stresses of constant-duty industrial and residential oil-fired applications.

• Optimized for ABC D & LC burners to ensure precise fitment and terminal alignment.
• 10,000V Secondary Output provides a robust spark for dependable ignition in varying industrial conditions.
• High-Temperature Internal Wiring reduces thermal stress, extending the operational life of the transformer.
• Compact Small Can Design allows for easier 2721-452 installation in tight burner housings.
• Advanced EMI Protection prevents electrical noise from disrupting sensitive electronic burner controls.

Is the Allanson 2721-452 compatible with different burner brands?
While specifically designed for ABC D & LC burner models, this transformer also serves as a direct cross-reference for specific France (5LAY-11, 51), Sid Harvey (T-34-B), and Webster (313-26AB65) units. Always verify your hinge and terminal style before installation.

What are the primary electrical requirements for this unit?
This oil burner transformer requires a standard 120Vac supply voltage at 60Hz. It features a 23mA current draw and a mid-point ground for safety and ignition stability.

Does this unit include a primary wiring compartment?
No, the 2721 series is a small-can design typically supplied without a primary wiring compartment; verify your mounting plate requirements to ensure a secure ground connection.

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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