2721-628G Allanson Beckett AFG 10,000 Volt Ignition Transformer
The Allanson 2721-628G Ignition Transformer is a high-performance, double-pole transformer engineered for Beckett A, AF, and AFG oil burners. Delivering 10,000 volts output, it provides a reliable spark for consistent ignition, ensuring safe and efficient operation in residential, commercial, and industrial heating systems. Built to meet OEM specifications, this transformer runs cooler, quieter, and longer than generic alternatives.
✅ Key Features
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High voltage output: 10,000V for reliable spark ignition
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Input: 120V, 23 mA, 60 Hz
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Double-pole design – ideal for constant duty applications
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Large spring HV terminal with end-hinge can
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Mid-point grounding for safety
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Constructed with high-temperature wire for cooler, safer operation
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Single porcelain design – durable and dependable
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Meets American & European EMI/RFI noise standards
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OEM-quality performance – designed to Beckett burner specifications
📊 Technical Specifications
| Specification | Details |
|---|
| Manufacturer |
Allanson |
| Part Number |
2721-628G |
| Application |
Oil Burners |
| Burner Manufacturer |
Beckett |
| Burner Type |
A, AF, AFG |
| Input Voltage |
120V AC |
| Input Current |
23 mA |
| Secondary Voltage |
10,000V |
| Frequency |
60 Hz |
| Poles |
Double |
| HV Terminal |
Large Spring Contact |
| Can Type |
Small Can Series |
| Hinge Location |
End Hinge |
| Grounding |
Mid-Point |
| Compliance |
Meets American & European EMI/RFI standards |
⚡ Common Problems Solved
❌ Burners failing to ignite reliably
❌ Inconsistent sparks causing misfires
❌ Excessive noise or heat from old transformers
❌ Premature failure from non-OEM or low-quality replacements
❌ Electrical interference affecting other equipment
🛒 Shopping Tips
✅ Confirm Burner Compatibility – Designed for Beckett A, AF, and AFG oil burners. Verify your burner model before purchase.
✅ Verify Replacement Part Numbers – Replaces:
Beckett BLL101, 2-442, 5878U, 51936U; France 10SAY-04, 5LAY-04; Carlin 41000-S0-BK1; Sid Harvey T92E; Allanson 2721-628, 2721-628A, 2721-667, 2721-667B, 2275-628G; Dongan XD-BK103, 75-A10-203; Kenyon Super C888; Webster 3-28AB-BAF, 3-28AB-BAFR; Grainger 51771GU, 4NY11; Thermolok TB-10; Reznor 220627, 101332.
✅ Check Voltage Requirements – Input voltage is 120V AC, 23 mA. Ensure your system supports this rating.
✅ Installation Orientation – Designed with large spring HV terminal and end-hinge can. Allow proper mounting and wiring access.
✅ Prioritize Safety and Compliance – Mid-point grounding and EMI/RFI compliance. Follow manufacturer installation instructions.
✅ Consider Durability – High-temperature wire and porcelain construction make this transformer long-lasting, quieter, and cooler running.
✅ OEM Quality Matters – For reliable ignition and system performance, always choose OEM or equivalent quality transformers.
❓ Frequently Asked Questions (FAQ)
Q: Which burners are compatible with this transformer?
✅ Beckett A, AF, and AFG oil burners.
Q: What parts does it replace?
✅ Replaces Beckett BLL101, 2-442, 5878U, 51936U; France 10SAY-04, 5LAY-04; Carlin 41000-S0-BK1; Sid Harvey T92E; Allanson 2721-628, 2721-628A, 2721-667, 2721-667B, 2275-628G; Dongan XD-BK103, 75-A10-203; Kenyon Super C888; Webster 3-28AB-BAF, 3-28AB-BAFR; Grainger 51771GU, 4NY11; Thermolok TB-10; Reznor 220627, 101332.
Q: What is the voltage output?
✅ 10,000 volts for reliable spark ignition.
Q: Is this a constant duty transformer?
✅ Yes, the double-pole design is made for constant duty operation.
Q: Does it meet safety and noise standards?
✅ Yes, it complies with American and European EMI/RFI standards.
