
BRAHMA T18 IGNITION TRANSFORMER
Brahma T18 ignition transformer, 2-pole design, peak output 2x7.5 kV and 100% duty cycle; suitable for continuous industrial operation.
Product Overview
Brahma T18 Ignition Transformer is a 2-pole ignition transformer designed for continuous operation. According to Brahma, the T18 model is suitable for industrial machines using liquid or gaseous fuels, particularly in applications that require ignition to be maintained over extended operating periods.
The T18 ignition transformer operates on a 220 V – 50 Hz power supply and provides an RMS output voltage of 2 × 4.5 kV and a peak output voltage of 2 × 7.5 kV. The device has an effective output current of 18 mA, a power consumption of 200 VA, and a 100% duty cycle, making it suitable for continuous operation.

Technical Specifications
| Specification | Details |
| Brand | Brahma |
| Model | T18 |
| Product ID | 15510001 |
| Device Type | Continuous Duty Ignition Transformer |
| Number of Poles | 2 |
| Application | Equipment using liquid or gaseous fuels |
| Supply Voltage | 220 V – 50 Hz |
| RMS Output Voltage | 2 × 4.5 kV |
| Peak Output Voltage | 2 × 7.5 kV |
| Effective Output Current | 18 mA |
| Effective Input Current | 0.9 A |
| Duty Cycle | 100% |
| Power Consumption | 200 VA |
| Operating Temperature | −10°C to +35°C |
| Insulation Material | Polyester resin |
| Recommended Electrode Distance | 3–5 mm |
| Standard Supply Cable Length | 700 mm |
| Weight | 3.7 kg |
Operating Principle
The T18 ignition transformer converts the input power supply into high voltage at its two secondary outputs. This high voltage is transmitted to the ignition electrodes to generate an electric spark, thereby supporting ignition of the fuel-air mixture inside the combustion equipment.
The T18 model belongs to the column-type transformer series with two primary windings and two secondary windings. The components are separated by a high-insulation separator, while high-voltage insulation is achieved using vacuum-cast polyester resin. The device housing is made of stove-enamelled pressed metal.
The recommended distance between the ignition electrodes is 3–5 mm. The standard supply cable length is 700 mm, and the device operates within a temperature range of −10°C to +35°C.

Comparison of Brahma T18 and T8 Ignition Transformers
The T18 and T8 models belong to the same Brahma ignition transformer series and have the same overall dimensions, but differ in their electrical characteristics and fixing systems.
| Feature | Brahma T18 | Brahma T8 |
| Number of Poles | 2 | 2 |
| RMS Output Voltage | 2 × 4.5 kV | 2 × 6.5 kV |
| Peak Output Voltage | 2 × 7.5 kV | 2 × 11 kV |
| Effective Output Current | 18 mA | 33 mA |
| Effective Input Current | 0.9 A | 2.1 A |
| Duty Cycle | 100% | 33% over 3 minutes |
| Power Consumption | 200 VA | 460 VA |
| Weight | 3.7 kg | 3.5 kg |
The key difference of the T18 model is its 100% duty cycle, while the T8 operates with a 33% duty cycle over 3 minutes. The T18 is designed for continuous operation, whereas the T8 is suitable for high thermal power oil burners or pressurised burners, including systems subject to a high number of restarts.
Applications of the Brahma T18 Continuous Duty Ignition Transformer
The T18 ignition transformer is designed for applications requiring continuous operation and is suitable for:
- Industrial machines and equipment using liquid fuels.
- Industrial machines and equipment using gaseous fuels.
- Systems requiring continuous ignition operation.
- Industrial applications requiring an ignition transformer with a 100% duty cycle.
Water cleaners are one example of industrial machines that can use the T18 model.
Installation Notes
Before installing, connecting, or disconnecting the transformer, the power supply must be switched off. The transformer earth and the electrical system earth must be correctly connected, and a single earth point should be arranged to prevent earth conductors from forming ring paths.
The device can be mounted in any position. Ignition cables should be kept as short as possible, routed separately close to ground planes, and high-voltage cables should be kept away from other electrical cables to reduce interference.
Contact for Brahma Product Consultation and Quotation
Nam Viet specializes in supplying genuine Brahma equipment and spare parts for gas burners, oil burners, and industrial thermal systems, including Brahma flame sensors , Brahma burner control units , Brahma ignition transformers , Brahma solenoid valves and other related spare parts.
Contact Nam Viet for product consultation, model verification, and quotation.
NAM VIET THERMAL EQUIPMENT CO., LTD.
- Address: 50 An Hoi Street, An Hoi Dong Ward, Ho Chi Minh City
- Hotline: 0903 610 952 – 0909 694 025
- Email: binh.huynh@namvietstore.com








