421-BT-387 ALLANSON Ignition Transformer – 120V Primary, 10,000V Secondary | Double Pole

The 421-BT-387 ALLANSON Ignition Transformer is a high-performance, double-pole ferromagnetic transformer designed for constant-duty oil burner applications. With a 120V primary input and 10,000V secondary output, this transformer provides a reliable ignition source for commercial, residential, and industrial oil burners. Built to burner manufacturer specifications, it runs cooler, quieter, and safer, while meeting American and European EMI/RFI noise emission standards.

🔑 Key Features

✅ Primary Voltage: 120V AC, Input Frequency 60Hz
✅ Current: 23 mA
✅ Secondary Voltage: 10,000V
✅ Poles: Double Pole
✅ Grounding: Mid-Point Ground
✅ HV Terminal: Thumb Screw for secure high-voltage connection
✅ Junction Box: Internal for clean installation
✅ Can Size: Large Can Series
✅ Designed with high-temperature wire for durability
✅ Runs cooler, quieter, and safer on all types of burners
✅ Designed according to burner manufacturer specifications
✅ Meets American and European EMI/RFI noise emission standards
✅ Constant-duty design for oil burner applications

📊 Technical Specifications

⚠️ Common Symptoms Indicating Transformer Replacement

• Burner fails to ignite or produces weak spark

• Inconsistent ignition performance

• Excessive heat or unusual noise from transformer

• Visible damage or insulation wear

🛒 Shopping Tips

• Confirm Compatibility: Designed for oil burners requiring 10,000V secondary and mid-point grounding.

• Proper Installation: Use mid-point grounding and thumb screw HV terminal correctly for safe operation.

• Constant Duty: Designed for continuous operation without overheating.

• Noise Compliance: Meets EMI/RFI standards for safe and quiet operation.

• Can Size: Large Can Series, compatible with most commercial and industrial oil burners.

❓ Frequently Asked Questions (FAQ)

Q1: What type of oil burners can this transformer be used with?
A: Designed for commercial, residential, and industrial oil burners requiring 10,000V secondary output.

Q2: Is this a single-pole or double-pole transformer?
A: This is a double-pole transformer.

Q3: What is the input and output voltage?
A: Input: 120V AC, Output: 10,000V.

Q4: What type of HV terminal does it use?
A: Thumb Screw for secure high-voltage connection.

Q5: Can it be used for constant-duty operation?
A: Yes, it’s designed for continuous operation without overheating.

Q6: Does it meet EMI/RFI standards?
A: Yes, compliant with American and European noise emission standards.

Q7: What type of junction box does it use?
A: Internal junction box for clean and convenient installation.