New Ground Fault Sensor from NK Technologies Provide Ample Space for Multiple Conductors

Press Release Summary:

  • Applications include water treatment and delivery, generators and monitoring large machines
  • Provides ample space for multiple conductors up to 800 amps through a single sensing ring
  • Compatible with most automation and control systems

Original Press Release:

NK Technologies Introduces AG-LC Series Ground Fault Sensor: New Large Solid-Core Design Ideal for Monitoring Larger Circuits

SAN JOSE, CA – July 12, 2019 – NK Technologies announced the AG-LC Series, a new ground fault sensor that makes it easy to monitor larger circuits. The 2011 NEC requires ground fault protection of the main over-current device feeding marinas and boatyards, where these services often carry up to 800 amps. Most sensor designs do not allow the conductors to pass through a single sensing ring, requiring a separate sensing device such as a zero-sequence current transformer. The AG-LC Series resolves this issue with an innovative large solid-core housing design that provides ample space for multiple conductors to pass easily through one sensing window.

Key applications include:

• Monitoring large machines: Detecting leakage to earth before the problem can cause damage

• Water treatment and delivery: Keeping pumping systems safe and in operation

• Generators: Shut down equipment when leakage current exceeds hazardous levels

AG-LC Series highlights include:

• Electromechanical relay output provides both normally open and normally closed contacts

• Compatible with most automation and control systems

• Externally powered – choice of fail-safe or standard operation

• Simple field setpoint adjustment

• Adjustable time delay

• DIN Rail or panel mount

Media contacts:

Company: Will Delsman | 408.871.7510, x1013 |

Agency: Julie Eleftheriou | 952.913.3065 |


Founded in 1982, NK Technologies designed the first low-cost solid-state current sensing technology that underlies the industry today.

Today, NK Technologies is a leading provider of current sensing, ground fault detection, voltage measurement and power monitoring products to the industrial and factory automation markets, with a product portfolio that includes more than 1300 models to satisfy a wide range of specific application needs. As the needs of these markets change, NK Technologies is well-positioned to respond with sophisticated new product designs and improved product functionality necessary to meet those applications.

NK Technologies, 3511 Charter Park Drive, San Jose, CA 95136; 800.959.4014; fax: 408.871.7515;

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