Trasformatore di accensione Kromschroeder TZI5-15/100R (84331382)

The Kromschroder TZI5-15/100R (catalogue article 624.820.018, manufacturer codes 84331382 and 624.820.018) is an ignition transformer. Ignition transformers of this type step the mains voltage up to a level that produces a spark across the electrode gap. They are energised only during the ignition period, under command from the burner control. Parts of this class are selected by their secondary voltage and current ratings, the primary voltage (230 V is common, but 110 V and 24 V variants exist), the duty cycle, and the mechanical interfaces – mounting style, terminal arrangement, and the connector pattern for the high-voltage cable. When replacing an ignition transformer, ensure that the primary voltage matches the burner control output and that the secondary output is sufficient for the electrode gap and fuel type. The duty cycle must be compatible with the burner’s ignition sequence – most burners require a short spark window, but industrial or continuous-pilot applications may demand a different specification. The cable connector pattern must also match the existing harness; mismatched connectors can cause intermittent spark or no ignition. A common cause of ignition failure that mimics transformer fault is a hardened or cracked ignition cable. Such cables leak the high voltage to earth, reducing spark energy or preventing it entirely. Always inspect the silicone-insulated cable for brittleness or carbon tracking before condemning the transformer.