Brahma Ignition transformer TD1LVCAF 15910408

The Brahma TD1LVCAF ignition transformer (SKU 15910408) is a high-frequency electronic generator with a ferritic core, designed for gas and liquid fuel burners in domestic, commercial, and industrial installations. It provides a peak output voltage of 15 kV and a rated secondary current of 25 mA, with a power consumption of 45 W. The transformer operates on a 220–240 V supply at 50–60 Hz, features a built-in varistor and EMC filter, and complies with directive 2004/108/EC. It has one high-voltage contact, a duty cycle of 50%, and an operating temperature range of -10 to 60 °C. The unit includes an ignition cable, weighs 0.36 kg, and is protected to IP00.

When selecting an ignition transformer of this type, ensure the supply voltage, frequency, and duty cycle match the burner's requirements. Verify the number of high-voltage contacts and the type of connection (e.g., threaded or Ø4 mm connector) to fit the existing ignition cable. The transformer must be mounted securely, often using M4x45 screws, and the ignition cable length should not exceed the specified maximum. Check the recommended spark distance and ensure the operating temperature range is suitable for the installation environment.

Common failures in ignition transformers include short circuits or open circuits in the high-voltage output, which can result in weak or no spark. Overheating due to excessive duty cycle or poor ventilation may cause internal component damage, leading to intermittent ignition. A faulty varistor can fail to protect against power surges, potentially damaging the transformer. Symptoms include burner ignition failure, sparking at the cable or connections, or a buzzing sound from the transformer. Check the ignition cable for damage, verify the spark gap, and test the transformer's output voltage with a suitable meter.