Allanson 542-A C7 Industrial Control Relay Module

Allanson 542-A ignition transformer is a ferromagnetic, high-voltage ignition device designed for burner ignition in industrial gas systems. It accepts 120 V AC input at 60 Hz and delivers a 10,000 V AC secondary to generate a reliable ignition spark, with an end-point grounded configuration suited for field retrofits. The unit’s compact footprint measures approximately 4.45 in wide, 5.1875 in tall, and 7.875 in deep, making it a practical OEM replacement for installations with Webster-brand burners and other industrial gas-fired equipment. Rated for end-use ignition in commercial heating applications, the 542-A typically draws about 23 mA from the 120 V supply to produce the high-voltage spark needed for reliable ignition, and it is sold as factory-new OEM Allanson equipment for burner assemblies and retrofit projects. The part number 542-A identifies a widely used ignition transformer in boiler and burner systems, built to withstand the rigors of industrial environments while delivering a robust 10 kV secondary output for dependable ignition performance.