Cofi Ignition transformer TRS515PC

The Cofi TRS515PC is an ignition transformer designed for gas and diesel burners, boiler equipment, and industrial heating systems. It operates on a 230 V, 50 Hz supply and provides an output current of 0.55 A. The transformer features a high-voltage output for self-tapping screw connection and is equipped with a silicone-insulated ignition cable. Its dimensions are 150 mm in length, 86 mm in width, and 66 mm in height. This product is manufactured in Italy.

Ignition transformers of this type are selected by matching the primary voltage (typically 230 V, but also 110 V or 24 V versions), secondary voltage and current, duty cycle, physical mounting method, terminal type, and the connector pattern for the ignition cable. Before ordering, confirm that the transformer matches the electrical supply and the electrode gap requirements of the burner. The high-voltage cable must be properly insulated and secured to prevent leakage.

Common failure modes include cracked or hardened ignition cables that leak spark to earth, which may be mistaken for a faulty transformer. Other issues can arise from internal component degradation, leading to weak or no spark, causing burner ignition failure. Check the cable condition and connections, and verify the transformer output with a suitable tester.