NK Technologies

01/27/2026

🔌 Protect Your People & Equipment with Advanced Ground Fault Protection! 🔌

Ground faults can lead to unexpected shutdowns, costly equipment damage, fires, or even shock hazards if left unchecked — and that’s the last thing any facility operator wants. 🚨

With NK Technologies’ Ground Fault Protection solutions, you can:
✔ Detect and prevent dangerous leakage currents before they cause harm
✔ Stay compliant with safety standards and electrical codes
✔ Choose from a wide range of relays and transducers designed for your specific application
✔ Download detailed guides, tutorials, and selection tools to make the right choice for your system 🔍 

Whether you’re working with commercial kitchens, industrial facilities, semiconductor equipment, or marine environments, NK Technologies has the expertise and products to help you improve safety and uptime. 🌟

👉 Learn more and find the right ground fault protection solutions for your projects:
https://www.nktechnologies.com/ground-fault-protection/

01/31/2022

We apologize for the long wait times on phones and e-mail. We are currently short-staffed and doing our best to catch up. In addition, due to some supply chain shortages, some products might have longer lead-times than usual.

Thank you for understanding!

11/17/2021

NK Technologies manufactures ground fault sensors designed for operating a shunt trip circuit breaker.

NK Technologies manufactures ground fault sensors, which can be used in a wide range of applications, from operating a shunt trip circuit breaker to providing an alarm contact or analog signal to a programmable logic controller. Many models are UL recognized as a component under UL1053, ground fault...

01/19/2020

What is an Industrial Ground Fault Sensor? Many industrial processes use electrically powered heat trace systems. Installers with little experience in this application think that heat trace cable is used to keep water pipes from freezing, but this is just the beginning. Heat trace is also used exten...

07/15/2019

We've just developed a new Large, Solid-Core Ground Fault Sensor - Check it out...

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 ...

07/08/2019

DT-BB DC Current Transducers feature an innovative design that allows a split-core transducer to be installed over existing bus bars or wire. These transducers are rated to measure DC current working voltage to 1500 VDC. The power supply and output signal wires are connected to the sensor with a terminal block, which plugs into the header on the top of the sensor. Four ranges are available from 0–100 to 0–400 amps; three output types: unipolar, bipolar and bidirectional; and three industry standard outputs: 4–20 mA, 0–5 and 0–10 VDC. The Innovative design puts the current sensing components in one housing with the signal conditioning, reducing installation time and improving both accuracy and safety.

DT-BB Series DC Current Transducer DT-BB DC Current Transducers feature an innovative design that allows a split-core transducer to be installed over existing bus bars or wire. These transducers are rated to measure DC current working voltage to 1500 VDC. The power supply and output signal wires are...

06/20/2019

AG-LC Series Ground Fault Sensor Large sensing window provides ample space for multiple conductors up to 800 amps through a single sensing ring. The AG-LC Series ground fault sensors feature an innovative design ideal for monitoring larger circuits. The 2011 NEC added section 555.3 to require ground...

03/07/2019

Use the DS1-FD DC Current Switch for Monitoring Loads up to 400 Amps or Higher.

Give us a call to discuss integrating the DS1-FD into your application 1-800-959-4014.

DS1-FD Series DC Current Switch DS1-FD Current Relays monitor AC or DC loads: motor, crane, or welding equipment. The relay features a large aperture and solid-core design that allows for quick installation, just thread the conductor through the sensing window (aperture) and reconnect on the other s...

02/10/2019

DT-BB Series DC Current Transducer DT-BB DC Current Transducers feature an innovative design that allows a split-core transducer to be installed over existing bus bars or wire. These transducers are rated to measure DC current working voltage to 1500 VDC. The power supply and output signal wires are...

11/10/2018

AT/ATR-TH Series AC Current Transducer AT/ATR-TH Series Current Transducers are the latest innovation for monitoring three-phase loads, motors, machines or buildings. The large triple-aperture solid-core design allows for a quick and easy installation. Just thread the conductors through the sensing....

06/07/2018

SAN JOSE, CA – May 2018 – NK Technologies (www.nktechnologies.com) introduces the DT-FD series DC Current Transducers. The DT-FD series provides a large sensing window and the ability to safely monitor circuits with voltages up to 1500 VDC, and up to 400 amps. The sensor can be mounted on a DIN ...