Fulton Boiler 2-40-001421 Low Water Cut-Off Relay

The Fulton Boiler 2-40-001421 Low Water Cut-Off Relay is an essential device used in boilers and other HVAC systems to prevent the system from developing low water level situations that can extensively damage it. This kind of relay controls the water level and shuts down the system if the water level gets to a point that it might cause an overheating of the equipment. When the relay is in operation, a probe or sensor is determined. Below the given threshold, the relay discharges an electrical signal to shut down the boiler or the related equipment.