Anstoss Ignition transformer ZIG 2/25 (f) 07000038/03

The Anstoss ZIG 2/25 (f) ignition transformer is designed for ignition and stable operation of burner equipment in heating systems. It generates a high-voltage pulse to ignite the fuel mixture in gas and liquid fuel burners. The device operates with a supply voltage of 220–240 V, a frequency of 50–60 Hz, and a power consumption of 5 W. It can withstand ambient temperatures up to 70 °C and is resistant to voltage fluctuations. This transformer ensures burner start-up and stable spark generation.

When selecting an ignition transformer of this type, ensure the primary voltage, frequency, and power ratings match the burner control circuit. The mounting method (bracket or plug-in base) and the high-voltage terminal or cable connector pattern must be compatible with the existing assembly. Measure the physical dimensions and compare the electrical specifications, including secondary voltage and current, to guarantee proper fit and operation.

A common failure mode for ignition transformers is not the transformer itself but the high-voltage cable, which can harden or crack due to heat and age, causing spark leakage to earth and resulting in a weak or absent spark at the electrode. If the burner fails to ignite but the transformer tests correctly, inspect the cable and connector. Also check the ignition electrode gap and its insulation, as these affect performance.