Hydrolevel Safgard™ 45-550 500 Low Water Cut-OffHydrolevel Safgard™ 45-550 500 Low Water Cut-Off
Hydrolevel Safgard™ 45-550 500 Low Water Cut-Off
HydrolevelSKU: 225510

Hydrolevel Safgard™ 45-550 Low Water Cut-Off, 120V

$204.01
In stock (53)

Hydrolevel Safgard™ 45-550 Low Water Cut-Off provides reliable boiler and water heater protection with manual reset capability. Rated for 120 VAC operation at 160 psi maximum, this safety device automatically shuts down equipment when water levels drop below safe operating thresholds, preventing costly damage and extending equipment life. Low power consumption at 4 VA minimizes electrical load. Engineered for commercial and residential HVAC/plumbing applications where dependable low-water detection is critical.

Shipping policy

Orders placed by 2:00pm EST will ship same day, except on holidays.

More Details

Product overview
  • Hydrolevel model: Safgard 550
  • For commercial hot-water boilers
  • Can serve as a secondary low-water cutoff on steam boilers
  • Suitable for gas- or oil-fired boiler applications
  • Operating voltage: 120VAC
  • Manual-reset operation
  • Interrupts the burner circuit immediately upon detecting low water
  • Locks out the burner after a sustained 30-second low-water condition
  • Test button checks the burner circuit and lockout function
  • LED status indicators simplify troubleshooting
  • SPDT switch contacts
  • Switching capacity: 5.8 FLA and 34.8 LRA
  • Maximum operating pressure: 160 psi
  • Includes standard EL1214 probe
  • Meets ASME CSD-1 requirements
Specifications
Manufacturer Part Number 45-550
UPC 642277455505
Overall Dimensions 4-13/16 in H x 3-3/8 in W x 2 in D
Material n/a
Domestic or Import n/a
End Style n/a
Type n/a
ADA Compliance n/a
Warning Professional installation required
Standards and Approvals ASME CSD-1 | UL Listed
Resources
Delivery & Returns

Orders will ship same day if received by 2pm EST.

Upcoming holiday closures: July 3, 2026

All returns are inspected on receipt; credit is issued after condition is confirmed. Credit is issued only for items returned in original, saleable condition after inspection.

FINAL SALE ITEMS ARE NOT ELIGIBLE FOR RETURNS OR EXCHANGES.

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