Hydrolevel 45-551

Safgard 550SV Low Water Cutoff w/ Manual Reset \& Test Button/Light, Shorter Probe - 120V

Hydrolevel low water cut-offs are electrically operated. A probe is installed in the boiler shell or external manifold and is connected to the control unit. Water is used as a conductor to complete the circuit between the probe and the boiler shell. When water is in contact with the probe, the circuit is completed; when the water level drops below the probe, the circuit opens. Hydrolevel controls provide contacts to de-energize the burner circuit in a low water condition. Shorter probe for mounting in standard reducing tees.

• Reliable Electronic Operation
• Low Maintenance
• Easy to Install
• Inexpensive to Own and Operate
• 100% Factory Tested