this Danfoss pressure switch represents a standard for safeguarding liquid or gas lines against over-pressurization

This model operates on a wide supply voltage range from 12 to 40 Vdc

As a critical component of the Robertshaw 1800 Pilot Series

For technicians performing furnace relay troubleshooting

While it is an SPDT relay

Robertshaw 780-845 Ignition Module 30067439-890 this Danfoss pressure switch representsThe Robertshaw 780 845 Ignition Module is a veteran standard intermittent pilot ignition control engineered for reliability in gas fired heating systems. Designed as a versatile SP845 factory model, this 24V AC unit features solid state logic and flame rectification for precise automatic sequencing. It serves as the direct replacement for 100 00831 05 and 9004426105, effectively consolidating truck stock for service contractors. The module delivers 4