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Safgard 450, Non-Cycling Steam Primary Low Water Cut-Off w/ Auto Reset, 120V
Brand: Hydrolevel
Part#: 45-450
Model: Safgard 450
made in usa
Hydrolevel Safgard 450 is a 120V non-cycling low water cut-off (LWCO), designed for use as a primary control on steam boilers (residential or light commercial). Burner circuit contacts open after 15 second delay in a low water condition. Delay prevents short cycling caused by momentary fluctuations in the boiler water level. Automatically reactivates burner circuit 30 seconds after water reaches the probe, allowing optional water feeder to raise water level above the probe.

  • Suitable for residential and light commercial steam boilers
  • Connections for optional wiring to a water feeder
  • 15-second off-time burner shut down delay prevents short-cycling due to surging and priming
  • 30-second on-time delay allows automatic feeders or solenoid valves to fill water above probe to a safe level
  • Auto-reset - automatically restarts boiler after on-time 30-second delay
  • Multiple wiring options
  • Low maintenance - no blowdown or moving parts
  • Rugged solid state circuitry for top-level performance and reliability.

Technical Specifications:
  • System Type: Steam Boilers
  • Reset: Automatic
  • Connection: 3/4" NPT
  • Electrical Specs: 120V, 60 Hz, 4 VA (Power Consumption); SPDT (Relay Type), NEMA 1 Enclosure
  • Switching Capacity: 5.8 FLA, 34.8 LRA
  • Max Steam Pressure: 15 psi
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