Anstoss ZIG 2 07000020 ignition transformer

This Anstoss ignition transformer, catalogue article 155.820.042 and manufacturer codes 07000020/04, is a component that steps up mains voltage to produce a spark at the ignition electrode gap. Parts of this type operate only during the ignition period, under command from the burner control. The transformer receives a primary voltage—typically 230 V, though 110 V and 24 V versions exist—and outputs a high secondary voltage and current sufficient to ionise the gap. Selection of such a transformer depends on the secondary voltage and current, the primary voltage, the duty cycle (how long it can be energised relative to the burner programme), and the physical mounting and terminal layout. The cable connector pattern must match the burner’s wiring harness. Ignition cables are silicone-insulated to withstand high voltage and heat; a hardened or cracked cable can leak the spark to earth, producing symptoms that mimic a faulty transformer. When replacing an ignition transformer, confirm the primary voltage and the secondary output match the burner’s requirements, and inspect the ignition cable and electrode connections for condition and correct gap.