Ignition Transformers ET 402

Honeywell Ignition Transformer ET 402

The Honeywell ET 402 is a 2-pole ignition transformer that steps up a 230V mains supply to two 7kV high-voltage secondary outputs rated at 40mA rms (2 x 7kV Ampl.), for firing the spark electrodes on gas and oil burners. Rated for an intermittent duty cycle of 33% ED (energised duration) within a 3-minute cycle, with IP40 protection, it delivers reliable high-voltage ignition for burner and boiler applications. It terminates in flying leads (Blue-N, Brown-L, Green&Yellow-E) for direct wiring into the burner control circuit. Manufactured by Honeywell.