Kromschroeder TZI8-20/19WE (84391160) Zündtransformator

Kromschroder TZI8-20/19WE (84391160) ignition transformer, catalogue article 624.820.024. This component belongs to the burner ignition system. An ignition transformer of this type steps up the mains voltage to produce a spark at the ignition electrode gap. The transformer operates only during the ignition period, under command from the burner control. Selection of a replacement depends on primary voltage (230 V is common but 110 V and 24 V variants exist), secondary voltage and current, duty cycle, mounting arrangement, and terminal or connector pattern. The secondary output must match the electrode gap and control box specification. Ignition cables for such transformers are silicone-insulated for high voltage and heat resistance. A hardened or cracked cable can leak the spark to earth, mimicking a faulty transformer. When replacing this part, inspect the cable and electrode condition. Confirm the electrical and mechanical specifications against the original before installation.