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Allanson 2721-620 ignition transformer, rectangular metal housing with side hinge mount, 120 V AC

Allanson

Allanson 2721-620 Ignition Transformer 120 V AC hvac control

SKU CH-EKXT-D9QG2

Provides 120 V AC ignition for compatible Wayne E oil burners with 23 mA output

  • 120 V AC input powers compatible oil burners directly
  • 23 mA output delivers reliable ignition spark
  • Side-hinge mounting simplifies burner installation
  • Replaces multiple Wayne E part numbers
  • Compact 4 in height fits tight spaces

Replacement Ignition Transformer 120 V AC

The Allanson 2721-620 is a new oil burner ignition transformer rated for 120 V AC supply. It provides a 23 mA output to energise the ignition electrodes on compatible Wayne E oil burners. The unit mounts via a side hinge and measures four inches high by five inches wide by five inches deep. It serves as a direct replacement for several manufacturer part numbers.

Suitable for Wayne E oil burner maintenance

This transformer suits technicians and homeowners who need a direct replacement for the listed Wayne E burner models. It matches the 120 V AC supply and 23 mA output required by those units. Installers working on burners that demand a different voltage, a higher amperage, or a different mounting pattern should look at other parts. The side hinge mounting may not fit burners designed for base or bracket mounting.

Critical spec is the 23 mA output at 120 V AC

The single specification that decides fitment is the 23 mA output delivered at 120 V AC. Only burners designed for that exact voltage and amperage will ignite reliably with this transformer. Always verify the burner nameplate matches these electrical values before ordering.

Highlights

  • 120 V AC input powers compatible oil burners directly
  • 23 mA output delivers reliable ignition spark
  • Side-hinge mounting simplifies burner installation
  • Replaces multiple Wayne E part numbers
  • Compact 4 in height fits tight spaces

Specifications

BrandAllanson

Questions about this item

Will the side-hinge mounting on the 2721-620 require periodic adjustment or replacement?

The side-hinge mounting is a fixed mechanical feature; no periodic adjustment or replacement of the hinge itself is specified.

What limits continuous operation of the 120 V AC ignition transformer?

Continuous operation is limited by the 23 mA output rating and the insulation class of the internal windings.

How much heat does the 2721-620 produce when running all day on an oil burner?

The transformer draws 23 mA at 120 V AC, so its steady-state heat output is low and typically handled by the burner housing airflow.

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