Cofi Ignition transformer TRS812C

The Cofi Ignition transformer TRS812C is a high-voltage ignition transformer designed for gas and diesel burners, boiler equipment, and industrial thermal installations. It operates from a 230 V, 50 Hz supply and provides a secondary voltage of 8 kV. The transformer has dimensions of 110 mm in length, 90 mm in width, and 70 mm in height, and is manufactured in Italy.

When selecting an ignition transformer of this type, verify the primary voltage (e.g., 230 V, 110 V, or 24 V), secondary voltage and current, duty cycle, mounting arrangement, and terminal type. Measure the existing transformer's dimensions and mounting hole pattern to ensure compatibility. Check the high-voltage cable connector pattern and ensure the cable is silicone-insulated to withstand high voltage and heat.

Common failure modes for ignition transformers include cracked or hardened high-voltage cables that leak spark to ground, resulting in weak or no spark. A fouled or worn electrode can also cause weak spark, mimicking transformer failure. Equipment may fail to ignite or exhibit intermittent ignition, prompting checks of the transformer output, cable condition, and electrode gap.