Anstoss Ignition transformer ZIG 2/12 SD 07000037

The Anstoss ZIG 2/12 SD 07000037 is an ignition transformer with a supply voltage of 230 V. It steps up mains voltage to produce a spark across the ignition electrode gap. The transformer is energized only during the ignition period, controlled by the burner control (flame safeguard). Once flame is proved, the control cuts power to the transformer.

When selecting a replacement ignition transformer, verify that the primary voltage matches the existing supply (230 V is common, but 110 V and 24 V also exist). Check the secondary voltage and current rating, duty cycle, mounting arrangement, and terminal or cable connector pattern. Ensure the secondary output is appropriate for the electrode gap and burner control type.

Ignition transformers can fail due to hardened or cracked ignition cables, which may leak spark to earth and cause symptoms resembling a faulty transformer. Other failure modes include internal short circuits or open windings, leading to no spark or weak spark at the electrode. Check the ignition cables for damage and verify the transformer's primary voltage and secondary output.