Anstoss ZIG 2/12 SD 07000037 ignition transformer

The Anstoss ZIG 2/12 SD 07000037 is an ignition transformer listed under catalogue article 155.820.038. Parts of this type step mains voltage up to the level required to produce a spark across the ignition electrode gap. The transformer is energised only during the ignition period, under command from the burner control (flame safeguard). When the control calls for ignition, the transformer delivers high voltage to the electrode; once flame is proved, the control cuts power to the transformer. Selection of a replacement ignition transformer is based on primary voltage (230 V is the most common, but 110 V and 24 V also exist), secondary voltage and current rating, duty cycle, mounting arrangement, and terminal or cable connector pattern. The ignition cables used with such transformers are silicone-insulated to withstand high voltage and heat. A hardened or cracked cable can leak the spark to earth and produce symptoms that appear to be a faulty transformer. When replacing, verify that the primary voltage matches the existing supply and that the secondary output is appropriate for the electrode gap and burner control type.