Allanson Transformers 421-BT290 Transformer Els PW 17895 and electronic controllers

and electronic controllers

This genuine Nordyne replacement part is engineered to handle the electrical load of electric furnace heating coils

always verify the voltage requirements of the specific control circuit before installation

Proper installation requires verifying the temperature rating against the original equipment manufacturer's specifications to ensure the combustion blower and heat exchanger operate within safe parameters

What does the L170-50 code mean for this limit switch

Allanson Transformers 421-BT290 Transformer Els PW 17895 and electronic controllersThe Allanson 421 BT290 is a heavy duty universal ignition transformer engineered for high performance oil burner service and replacement applications. Operating on a 120Vac supply voltage, this unit delivers a consistent 10,000Vac secondary voltage at 23mA, ensuring reliable arc initiation even in demanding environments. Designed with a mid point ground and a durable internal junction box, it simplifies field wiring while maintaining electrical