SUPPORT

For help troubleshooting problems and technical questions,
please send an email to Technical Support.

In addition to your contact information, please include the J&D part number(s) that you have and a description of the symptoms and issues.

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PRODUCTS BY APPLICATION

> Revolutionize Energy Efficiency with RJ12 Plug-and-Play EQ Split Core Transformers

> J&D's Smart Electricity Meters: Pioneering Precision in Current Measurement

> IP67 Waterproof Current Transformer for Outdoor Application

> Ultra-Precision Voltage Measurement Solutions for Low-Voltage AC Lines

> Clamp Type Current Sensor Series Lineup

NEW PRODUCT INTRODUCTION NEWS

> 1500VDC Auxiliary Power Solutions for 1500 VDC Photovoltaic Systems

CT GUIDES

> What is Current Transformer accuracy class

> Split-core CT Installation Guide

> CT Opening Size vs. Conductor Diameter

> Safety and Warning Notes from CT

> Current Sensors and Current Transducers - What Are They?

> Understanding CAT Safety Ratings and IP,NEMA Ratings for Current Transformers

OUR TECHNOLOGY

> AC Current Sensing Technology

> DC Current Sensing Technology

> AC Voltage Sensing Technology

> DC Voltage Sensing Technology

> Rogowski coil Technology

> Clamp on Current Probe Technology

APPLICATIONS

> Power Monitoring

> Smart Grid

> EV Charger

> Automation

> Renewable Energy

> Railway

> Power Supply

> Welding

> Drive