Vacuum Switch, 4.5″ HG Burner Control

SKU 8.712-393.0 Category
  • 4.5″ HG
  • Normally Open
  • Temperature Max: 140°F
  • Heavy-duty, 16 Amp Contacts
  • 1/4″ FPT Connect


Part Number: 8.712-393.0
Cross Reference Part Number(s): 413034, 728856, 8-25100017, 87123930

This 8.712-393.0 Normally Open VACUUM SWITCH with 4.5″ HG closes when the pump vacuum begins to draw water, allowing for burner ignition, then opens when the vacuum is broken; either due to pump shutdown or an empty water tank. Vacuum switches are used by such pressure washer manufacturers as Aaladin for burner control.

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