Mcdonnell & Miller FS8-WG-SL Switch 30067439-890 incorporating modern material durability

incorporating modern material durability

and 24V options to power various low-voltage controls

Reduces mechanical stress on the blower motor by synchronizing fan delays with heat element activation

In a professional steam system maintenance setting

or poor electrical supply—rather than disabling the safety device

Mcdonnell & Miller FS8-WG-SL Switch 30067439-890 incorporating modern material durabilityThe McDonnell & Miller FS8 WG SL is a heavy duty liquid flow switch designed for demanding hydronic and process cooling systems where reliability is non negotiable. This specific model features gold plated contacts and sealed leads, making it the preferred choice for low voltage signaling and environments prone to moisture or dust. Built with a NEMA 4X enclosure, it provides superior protection against corrosion and external contaminants. The unit