Allanson Transformers 421-BT387 Transformer

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120Vac Supply Voltage, 10,000Vac Secondary Voltage, 23mA, Mid Point Ground, Universal Ignition Transformer with Thumb Screw HV Terminal and Internal Junction Box

Allanson 421-BT387 Ferromagnetic Ignition Transformer – 120V Input, 10,000V Output, 23mA, Double Pole

The Allanson 421-BT387 Transformer is a premium ferromagnetic ignition transformer engineered for dependable, constant-duty operation in oil heating systems. Designed to meet the strictest performance and safety standards, this universal service replacement transformer is ideal for commercial, residential, and industrial applications.

Key Features:

• Model: 421-BT387

• Input Voltage: 120VAC, 60Hz

• Secondary Voltage: 10,000VAC

• Current: 23mA

• Grounding: Mid Point Ground

• Poles: Double

• HV Terminal: Thumb Screw

• Junction Box: Internal

• Application: Oil burners (universal fit)

• Can Size: Large Can Series

Built for Performance:

• Runs Cooler & Quieter: Uses high-temperature wire and advanced design for safe, efficient operation

• Durable Construction: Designed to meet burner manufacturer specifications

• Noise Reduction: Meets American and European EMI/RFI emission standards

• Dependable Ignition: Delivers reliable spark for consistent burner performance

• Single Porcelain Design: For simplified installation and superior reliability

Trusted by HVAC Professionals:
The Allanson 421-BT387 is the go-to choice for technicians seeking a high-performance, long-lasting transformer replacement for oil burner ignition systems.

SKU: 421-BT387

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Enhance system reliability with the Allanson 421-BT387 – your trusted solution for quiet, efficient, and powerful ignition in oil heating applications.