Power Monitoring

Low voltage power monitoring with no neutral is a code requirement, and Valid™️ offers a complete unit with the GFD family of ground fault detectors. Our intuitive user-friendly devices provide a simple method to detect the presence of current to ground.

To indicate the absence of ground fault, the 3 indicator lamps will glow with equal brightness. When a ground fault is present, the lamp associated with the grounded phase will go out, while the remaining lamps stay bright.

Valid™️ offers 2 power monitoring devices at this time. The Ground Fault Indicator (GFD) and the Fused ground Fault Indicator (GFDF) which offers additional corrosion resistance, a durable finish powder coat and a type 3 weatherproof design for both indoor and outdoor use.


  • Simple & Intuitive Device
  • Visual Indication of Ground Path Presence
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  • 6”H X 6”W X 4”D galvanized steel enclosure
  • 3 transformer indicator lights
  • 3 pilot light lenses
  • Visual indication of ground path presence
  • Lights wired to terminals for customer connection
  • Up to 600V
  • Certified to CSA standards
Power Monitoring

Product Name

Part ID

Ground Fault Indicator
All Part Numbers
Spec Sheet PDF
All Part Numbers
Spec Sheet PDF

Why Choose Valid

Valid’s unparalleled quality, years of experience and best in class engineering expertise delivers solutions that last the test of time. Our customer support and design team is committed to providing you with an exceptional product and unprecedented support levels before, during and after the sale.



Valid Manufacturing Ltd.

5320-B 48th Avenue S.E.

Salmon Arm, B.C. V1E 1X2