Fida Ignition transformer TE081S

The Fida Ignition transformer TE081S, type designation F8/10-100, is a dual-spark, compact ignition transformer designed for gas and oil burners. It operates with a supply voltage of 230 V at 50 Hz, providing a secondary voltage of 8 kV (2 x 4 kV) with a secondary current of 10 mA. The transformer has a duty cycle of 100%, allowing continuous operation, and features a sealed plastic housing with IP44 ingress protection. Its dimensions are 110 mm in length, 86 mm in width, and 67 mm in height, and it is compatible with Baltur, Bentone, and Intercal burners.

When selecting an ignition transformer of this type, verify that the primary voltage and frequency match the burner's supply, and that the secondary voltage and current are suitable for the ignition electrode gap. The duty cycle must accommodate the burner's ignition sequence, and the mounting type and terminal arrangement should correspond to the existing installation. Measure the physical dimensions to ensure proper fit, and check that the high-voltage cable connector pattern is compatible. The transformer connects to the ignition electrode via a silicone-insulated high-voltage cable, which must be inspected for damage during replacement.

Common failure modes for ignition transformers include internal short circuits, open windings, or insulation breakdown, leading to no spark or intermittent sparking. The burner may fail to ignite, run irregularly, or shut down due to flame detection issues. Check the high-voltage cable for cracks or hardening, as a damaged cable can leak the spark to earth and mimic a faulty transformer. Also inspect the transformer's primary connections and ensure the supply voltage is present.