Hydrolevel 550SV Low Water Cut-Off

120Vac Low Water Cut-Off with Manual Reset (after 30 seconds), Test Button and Light, and EL1214-SV Sensing Probe (Part Number 45-551)

Hydrolevel 550SV Low Water Cut-Off – 120V Manual Reset with Test Button & Probe (Part No. 45-551)

Ensure boiler safety and system efficiency with the Hydrolevel 550SV Low Water Cut-Off. Designed for use on hot water boilers, this high-performance control unit includes a manual reset (after 30 seconds), test button, indicator light, and a factory-included EL1214-SV sensing probe (part number 45-551) for reliable operation.

Key Features:

• Brand: Hydrolevel

• Model: 550SV

• Part Number: 45-551

• Application: Hot water boilers

• Voltage: 120 VAC

• Reset Type: Manual (after 30 seconds)

• Includes: Test button and status light

• Sensing Probe: EL1214-SV

• Connection Size: 3/4" NPT (direct to boiler tappings)

• Max Water Pressure: 160 psi

• Max Water Temperature: 250°F

• Ohms Sensitivity: 15,000 ohms

• Enclosure Rating: NEMA 1

• Installation: Direct mount to boiler tappings

This OEM-quality low water cut-off control is engineered to protect your boiler system by automatically shutting it down in the event of a low water condition, reducing the risk of overheating or damage. Ideal for residential or light commercial applications requiring dependable water level monitoring.

Applications:
Compatible with most hot water boilers in residential and light commercial systems.