Cofi High-voltage ignition transformer TRL24-30C

The Cofi TRL24-30C is a high-voltage ignition transformer designed for automatic ignition systems in gas and liquid fuel burners. It operates on a 24 V supply voltage and provides a secondary voltage of 15 kV across two poles. The transformer measures 118 mm in length, 84 mm in width, and 42 mm in height, with a net weight of 0.506 kg and a gross weight of 0.541 kg. It is intended for use during the ignition phase only and features silicone-insulated ignition cable for durability.

When selecting a replacement ignition transformer of this type, ensure the primary voltage matches the burner supply (e.g., 24 V, 110 V, or 230 V). The secondary voltage and current must be sufficient to reliably ignite the air-fuel mixture. Verify the duty cycle to ensure it can operate for the required ignition period without overheating. Physical mounting dimensions, terminal types, and the connector pattern for the high-voltage cable must also match the existing setup. Always inspect the ignition cable and electrode condition before installation.

Common failure modes for ignition transformers include internal short circuits, open windings, or insulation breakdown, leading to weak or no spark. Symptoms on the equipment include failure to ignite, intermittent ignition, or burner lockout. Check the transformer for visible damage, measure primary and secondary voltages, and inspect the ignition cable for cracks or hardening that could cause spark leakage to ground.