Kromschroder Ignition transformer TGI8-20/19WE 84391260

This is an ignition transformer for burner systems, model TGI8-20/19WE, SKU 84391260. It steps up the mains supply voltage to create a spark across the ignition electrode gap. The transformer is energised only during the ignition phase, on command from the burner control. It is intended for gas and oil-fired burners.

When selecting a replacement ignition transformer of this kind, verify that the primary voltage matches the burner control output; common primary voltages are 230 V, 110 V, and 24 V. The secondary voltage and current must be adequate for the electrode gap and burner type. The physical mounting arrangement, terminal layout, and cable connector pattern must correspond to the existing support bracket and wiring harness.

When an ignition transformer of this type fails, the burner may not ignite because no spark is generated. It is important to check the ignition cable first: a hardened or cracked cable can leak the spark to earth, mimicking a failed transformer. Confirm the cable condition before replacing the transformer.