Allanson Transformers 2744-668 Transformer

The Allanson 2744-668 Ignition Transformer is a high-performance 240V replacement ignition transformer engineered for reliable arc stabilization in commercial and industrial oil burner applications. Operating with a 10,000V secondary voltage and a 23mA output, this unit utilizes a mid-point ground configuration to ensure balanced electrical stress across the secondary windings. Designed for precise oil burner ignition, the 2744-668 serves as a direct cross-reference for numerous OEM field replacements. Its robust construction minimizes electromagnetic interference (EMI) and maintains a consistent spark under varying load conditions, making it an essential component for technicians addressing ignition failure troubleshooting. This HVACR ignition transformer is built to withstand high-temperature environments, ensuring long-term duty cycle performance in demanding heating systems. Use this Allanson 2744-668 to restore factory-spec ignition sequence timing and maintain system combustion efficiency across compatible burner chassis.

Key Benefits for Technicians

• Consistent 10kV Output: Delivers a high-intensity spark for immediate fuel ignition even in cold-start conditions.
• Mid-Point Grounding: Reduces insulation strain, extending the operational life of the internal coils.
• Universal Compatibility: Fits standard mounting footprints for streamlined field replacement and reduced downtime.
• 240Vac Input Efficiency: Optimized for industrial power supplies with internal protection against voltage fluctuations.

Common Questions

Is the Allanson 2744-668 compatible with solid-state igniters?
This is an iron-core electromagnetic transformer. While it can often replace solid-state units with similar physical dimensions and electrical ratings, checking the mounting plate and primary lead orientation is recommended for a proper fit.

What causes a mid-point ground transformer to fail prematurely?
Failure is typically caused by excessive secondary resistance, often due to wide electrode gaps or degraded ignition cables, which forces the transformer to operate at higher voltages than its design parameters.

Can I use this 240V transformer on a 120V primary circuit?
No, this unit requires a 240Vac supply voltage. Installing it on a 120V circuit will result in insufficient secondary voltage and failed ignition.

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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.