Emontx Shield - Understanding Calibration and Burdens

[Bill.Thomson]

@hoosac

I’m in the US with a split phase 100amp service so two 50a mains coming into the building

Often a point of confusion, the term 100 Amp service is somewhat misleading. It refers to the ampacity of your load center (circuit breaker panel) vice the amount of current available.

Here’s some additional info:

US 200 Amp Service explained or Do I need a 200 Amp CT?

A common question is “I have 200 Amp service, do I need a 200 Amp CT?” The answer is most likely no. Unless you have a very large house, a 100 Amp CT would be a better choice. (Large houses, typically have 320 or 400 Amp service and may actually need a 200 Amp CT, but this article addresses 200 Amp service installations) So what does the term 200 Amp service refer to? Simply put, it means the weakest link in your Service Entrance Wire, Meter Base, Meter, Main Breaker, Load Center (circuit b…