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NK Technologies AG3-SDT1-24U-DEN-TR3 - Ground Fault Detector 24 VAC/DC

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NK Technologies AG3-SDT1-24U-DEN-TR3 is a ground fault detector engineered for reliable leakage current sensing in single- and three-phase delta or wye systems. It operates on a 24 VAC/DC power supply (19–29 V range) with tri-set selectable setpoints at 5, 10, or 30 mA and features a SPDT relay (Form C) output with normally de-energized auto-reset operation. The unit is housed in a solid-core case with screw terminals, weighs 40 lb, and utilizes a zero-sum operating principle with noise immunity for stable performance. It is UL and CE approved for industrial use, making it suitable for integration with shunt trip breakers in panel-mounted applications.

Key Features & Specifications
  • Manufacturer: NK Technologies
  • Power Supply: 24 VAC/DC (19–29 V)
  • Setpoint: Tri-set 5, 10, or 30 mA (jumper selectable)
  • Output Type: SPDT Relay (Form C)
  • Contact Action: Normally De-Energized, Auto-Reset
  • Frequency Range: 50–400 Hz
  • Case Style: Solid-Core with screw terminals
  • Application: Ground fault detection in single- and three-phase delta or wye systems
  • Noise Immunity: Yes
  • Mounting Type: Panel mount
  • Trip Unit: Tri-set jumper selectable
  • Certifications: UL and CE approved
  • Weight: 40 lb