Allanson Transformers 2721-368M Transformer

The Allanson Transformers 2721-368M is a specialized ferromagnetic ignition transformer engineered specifically for Metro burner applications. Operating on a 120Vac supply voltage, this small can series unit delivers a powerful 10,000Vac secondary voltage at 23mA, ensuring consistent and reliable arc performance for oil heating systems. Its midpoint ground design facilitates stable ignition, while the zinc-plated button HV terminals and end hinge configuration allow for precise field installation and secure high-voltage connections. Built with high-temperature wire, the 2721-368M runs cooler and quieter than standard alternatives, effectively minimizing thermal stress on the internal windings. This industrial-grade oil burner transformer meets rigorous noise emission standards, providing superior EMI and RFI protection to prevent interference with sensitive control electronics. For technicians performing maintenance or replacements, this unit offers the dependable power required for constant-duty commercial and residential oil applications.

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• Specifically designed to match Metro burner manufacturer specifications for seamless physical and electrical compatibility.
• Features high-temperature wire construction to ensure the unit runs cooler, extending the service life of internal components.
• Engineered for EMI and RFI protection, meeting noise emission standards to eliminate electrical interference with furnace controllers.
• The 10,000V secondary output provides a high-intensity arc for reliable ignition in cold-start scenarios.
• Small can series footprint with an end hinge mounting style simplifies installation in tight burner housings.

Is the Allanson 2721-368M a suitable replacement for other burner brands?
While the electrical specs are common, the 2721-368M is specifically configured with an end hinge and zinc-plated button terminals for Metro burners. Always verify mounting bracket alignment and terminal type before substituting for other burner models.

What is the importance of the midpoint ground in this transformer?
A midpoint ground balances the voltage stress across the unit’s secondary insulation by grounding the center of the high-voltage winding, which is a standard requirement for many industrial ignition circuits to maintain safe operation.

Can this transformer be used for constant-duty applications?
Yes, Allanson ferromagnetic transformers are designed for constant duty, making them reliable for heavy-use residential and commercial oil heating applications where a steady ignition source is required.

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.