Hydrolevel 650SV 120V Low Water Cutoff with Auto Reset and Test Button

The Hydrolevel 650SV is a 120-volt automatic low water cutoff control designed to protect steam and hot water boilers from dangerous low water conditions. This safety device automatically shuts down the burner when water drops below a safe operating level, preventing costly damage and potential safety hazards.

Key Features:

• 120VAC operation for residential and light commercial applications
• Automatic reset function restores operation when water level returns to normal
• Built-in test button with indicator light for easy system verification
• Proven float-type technology for reliable water level sensing
• Simple installation with standard mounting configuration
• Complies with ASME CSD-1 safety requirements for low water cutoffs

The 650SV model combines dependable low water protection with user-friendly features including a test button that allows homeowners and technicians to verify proper operation without draining the boiler. The integrated indicator light provides visual confirmation of system status. This unit is suitable for use on steam and hot water heating boilers where reliable low water protection is essential for safe operation.