Hydrolevel 45-651

Safgard 650SV Electronic Low Water Cutoff w/ Auto Reset, 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.

• Automatically shuts off burner in a low water condition to prevent boiler damage
• Low maintenance. No moving parts to wear stick or hang up, as in float devices
• Test button allows the burner circuit and control to be tested without lowering the water level.
• Manual reset feature (550 \& 750 Series) will not lock out in power failures.