Safgard 500 Series

Low Water Cut-Off for Water Boilers or Secondary Low Water Cut-Off on Steam Boilers.

Product Information

  • Manual Reset
  • Burner Circuit Test Button
  • LED Indicating Lights
  • Meets ASME CSD-1 Requirements for
  • Commercial Water Boilers

Tech Specs

Specifications Model 500 Model 550
Power Consumption 2 VA 4 VA
Switching Capacity 50 VA 5.8 FLA, 34.8 LRA
Switch Contacts SPDT SPDT
Max Pressure 160 PSI 160 PSI

 

Model Part Number Voltage Description
500 45-500 24 VAC 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.
500SV 45-501 24 VAC SV Models include shorter EL 1214-SV probe suitable for mounting in standard black tee.
550 45-550 120 VAC 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.
550SV 45-551 120 VAC SV Models include shorter EL 1214-SV probe suitable for mounting in standard black tee.
550R 45-552 120 VAC R models include EL 1214-R probe for remote mounting.
550P 45-553 120 VAC P models include EL 1214-P probe with longer nut for boilers with thicker jackets.
550LSV 45-5510 120 VAC LSV models include EL 1214-LSV probe.