Allanson Transformers 421-BT290 Transformer Els PW 17895 This dual air pressure switch

This dual air pressure switch features a precision-calibrated 0

Built with a rugged steel shell construction

The enclosed body construction reduces noise and prevents internal contamination from dust and debris

provides the necessary conduits for maintaining precise fluid circulation and pressure regulation within the combustion or heat exchange circuit

Allanson Transformers 421-BT290 Transformer Els PW 17895 This dual air pressure switchThe 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