The Internet of Things (IIoT) offers unprecedented possibilities for industries. Stay ahead with EcoStruxure™ Plant and Machine.Learn more
...with the EcoStruxure™ Facility Expert (formerly known as Facility Hero) app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
The story behind the Shedd Aquarium, a smart, sustainable facility that connects people to animals, with EcoStruxure™.Discover how
Welcome to the Schneider Electric Global Website×
Some customers that are familiar with CT wiring for the PM800 do not know there is a wiring difference for the PM200/PM700 for Three-Phase 3-wire Power Systems when using 2 CTs.
For 3-wire, three-phase systems with 2 CTs, connect terminal S2 = X2 of CT1 to the I2+ terminal of the PM200/PM700 instead of the I1- (on the PM800). The PM200/700s firmware use the inverse of the residual current that goes into the I1-, I2- and I3- to know the actual value of current for the third phase. This is not a calculation. It is rather an actual value. By using N-1 CTs in power systems, you can know the actual current value of N phases.
Left: PM200/700 CT Wiring Right: PM800 CT Wiring
Sign up for all the latest solutions, offers and best practices straight to your inbox.
We are excited that you have joined the group. You will receive your welcome email soon describing the program and what to expect in the upcoming weeks. Enjoy!