Trasformatore di accensione Kromschroeder TGI 8-12/100QE (84391230)

The Kromschroeder TGI 8-12/100QE (catalogue article 624.820.033, manufacturer code 84391230) is an ignition transformer. Parts of this type step up mains voltage to the level required to produce a spark across the gap of an ignition electrode. The transformer is energised only during the ignition phase of the burner start sequence, under command from the burner control. It works with the ignition electrode and the high-tension ignition cable. When selecting a replacement ignition transformer, the primary voltage is a key parameter: 230 V is the most common, but 110 V and 24 V versions also exist. The secondary voltage and current determine whether the spark is reliably struck at the electrode. Duty cycle, mounting pattern, terminal type, and the connector layout for the ignition cable must match the original. The ignition cable is silicone-insulated to withstand high voltage and heat; a damaged or brittle cable can leak current to earth and falsely suggest a faulty transformer. This article is a Kromschroeder-branded ignition transformer. No further technical specifications are given here, so the part should be verified against the original by its name and codes before fitting.