Brahma Ignition transformer 15910409

The Brahma Ignition transformer 15910409 is a high-frequency electronic generator with a ferritic core, designed for gas, light, and heavy oil burners in domestic, commercial, and industrial applications. It delivers a peak voltage of 15 kV and a peak current of 45 mA, with a rated current of 25 mA and power consumption of 45 W. The transformer operates at 220–240 V, 50–60 Hz, with a duty cycle of 50%, and is protected to IP00. It features a built-in varistor, a special compound insulation, and an optional EMC filter, complying with directive 2004/108/EC. The unit weighs approximately 0.36 kg and has a standard power cable length of 560 mm.

When selecting an ignition transformer of this type, ensure the supply voltage, frequency, and duty cycle match the burner's requirements. Verify the peak voltage and current ratings are suitable for the electrode gap and ignition cable length. The transformer may have a built-in power cable or a connector, and high-voltage connections can be threaded or with a 4 mm connector; choose the version that fits the existing wiring. Confirm the number of contacts and mounting compatibility with the controller, as Brahma controllers can be installed directly using M4x45 screws.

Typical failures of such ignition transformers include internal short circuits or open circuits due to overheating or voltage surges, leading to weak or no spark at the electrodes. The equipment may fail to ignite, causing repeated ignition attempts or lockout. Check the spark gap, ignition cable integrity, and supply voltage, and test the transformer's output with a suitable high-voltage probe. A built-in varistor protects against surges, but if it fails, the transformer may be damaged.