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High Performance Current Sensing for Automation

High Performance
Current Sensing for Automation

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AGL Series Ground Fault Relay

Designed & Assembled in the USA

Home » Ground Fault Relays » AGL Series Ground Fault Relay

AGL Series Ground Fault Relay

Max. Wire Bundle 1.82 in (46.2 mm) Dia.

AGL Series Ground Fault Relay

The AGL series is a large aperture ground fault relay that offers one of the largest aperture diameters in the industry while maintaining a compact overall profile. Intended for sensing earth leakage, the AGL series offers a choice of N.O. or N.C. latching ground fault relays or a SPDT Form C relay auto-reset model. The enclosure features integral DIN rail mounting as standard. Optional noise immunity coatings for applications in harsh EMI/RFI environments is available.


  • Integral DIN rail mount with spring loaded mounting clips.
  • Compatible with most automation and control systems.


  • Include factory-adjustable setpoint from 5 mA –100 mA or “TR3 Tri-Set” models with field-selectable 5/10/30 mA settings.


  • Finger-safe terminals for worry-free installation and operation.


  • Orientation is perpendicular to DIN rail, allowing for clean and efficient wiring and minimizing space between multiple components.


  • Choice of dependable latching SPST or SPDT (form C) electromechanical relay outputs.


  • AGL Uses “Zero Sum” operating principle to reliably sense imbalance in magnetic fields associated with current leakage to ground.


  • Typical response times from 15 ms to 200 ms.


  • Integral “push-to-test” button with LED indication of contact status.

Here is what Engineers have to say about our technical expertise...

“Changes to NEC 210.8 B-F have challenged all of us in the industry to find new GFCI solutions. When NK Technologies reached out to us recently, we decided to invest a few hours into meeting with their application experts. Five of our electrical engineering designers attended the session and considered it time well spent. NK Technologies has an in-depth understanding of the new NEC requirements and ground fault products designed to meet them. We are thankful for their time.”

PK Electrical
One of the top electrical and low voltage/communications design firms,
in both the private and public sectors, based in Reno, NV and Denver, CO.

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