Designed as a direct drop-in for several legacy and modern units

This 30-degree differential prevents rapid cycling while ensuring the blower fan appropriately cools the system before the burners re-ignite

Operating on a 240Vac motor with spring return functionality

Matches exact specifications for Modine 5H0547510043

Hydrolevel 650 Low Water Cut-Off R-410A Designed as a direct drop-inThe Hydrolevel 650 Low Water Cut Off is a professional grade solution for protecting residential and light commercial hot water boilers from hazardous dry fire conditions. Operating on 120Vac, this unit offers immediate power interruption to the burner circuit when water levels drop below the EL1214 sensing probe. Designed for high reliability hydronic systems, the Safgard 650 series utilizes a stationary probe that uses water as a conductor,