Safgard 550 Series Low Water Cut-Off 550SV W/Manual Reset, Short Probe, Commereical, 120V

Safgard 550 series low water cut-off w/manual reset, short probe, commereical, 120v interrupts power immediately in a low water condition. burner circuit locks-out if water remains below probe for 30 seconds. manual reset will not trip due to power failures. test button checks burner circuit to ensure proper control operation and lock-out function without lowering the water level. note can also be used as a secondary cut-off on steam boilers. made in the usa . center /center.