Cofi Ignition transformer TRS610PC/5

The Cofi Ignition transformer TRS610PC/5 is a step-up transformer that operates from a 230 V power supply. It is designed for use in low-power diesel and fuel oil burners, providing the high-voltage spark needed for ignition. The transformer features a compact housing and silicone-insulated ignition cable. It is manufactured in Italy and carries the article number 309.820.071.

When selecting a replacement ignition transformer of this kind, verify the primary voltage (e.g., 230 V), secondary voltage and current ratings, duty cycle, mounting dimensions, terminal arrangement, and cable connector pattern. The mounting style and connector layout vary between manufacturers, so compare these with the original part before ordering. Ensure the high-voltage cable is silicone-insulated and check the electrode gap.

Typical failures of this kind include a weak or absent spark due to a hardened or cracked ignition cable leaking current to earth, or a faulty transformer. The burner may fail to ignite or lock out after the safety time. Check the primary voltage supply from the control, the continuity of the secondary circuit including cables and electrodes, and the condition of the cable insulation.