Brahma Ignition transformer T17/M 15447001

The Brahma T17/M ignition transformer (SKU 15447001) is designed for use in burners operating on liquid or gaseous fuels. It operates with a supply voltage of 220 V at 50 Hz, delivering a secondary voltage of 4 kV and a secondary current of 15 mA. The transformer has a duty cycle of 100%, power consumption of 140 W, and is protected to IP 00. Its construction features a shell-shaped magnetic circuit, polyester resin insulation, and a radio interference suppression screen requiring grounding. The unit measures 110x98x78 mm and weighs 2 kg, with a standard power cable length of 550 mm.

When selecting a replacement ignition transformer of this type, ensure the supply voltage, frequency, and secondary voltage/current ratings match the burner's requirements. The mounting system may vary (standard or alternative), so verify the physical dimensions and mounting holes align with the existing bracket. Connection insulators come in screw or cylindrical types (4 mm or 6.3 mm diameter); choose the one compatible with the ignition cable connectors. The recommended electrode distance is 3-5 mm, and the transformer must be grounded reliably for proper operation.

Common failures include insulation breakdown leading to short circuits or open windings, often caused by moisture ingress or overheating. Symptoms may include weak or no spark, intermittent ignition, or burner lockout. Check for visible cracks or burn marks on the casing, measure secondary voltage with a suitable probe, and verify the grounding connection is intact.