I need two more 200A CT’s.
Where is the best place to get them?
Just order them directly from Accuenergy?
Model: AcuCT-H100-200:333
Will I need anything other than the connector if I buy them from Accenergy?
The IoTaWatt page mentions “TVS diode protection”, Is that in the CT, or do I need to add it?
I believe the price is Canadian Dollars.
Thanks, I just bought a set.
Any idea where I might be able to get a set in Australia? CircuitIQ will ship to Australia, but - as you can see - the shipping costs are an absolute joke…
I’ve sent an inquiry to Echun.
Hi,
I’m in the US and I also need to purchase two more 200A CTs. I was previously using two AcuCT-H063-100 CTs to track my solar output but I added a second solar system, and the combined output is now connected to my main panel with polaris plugs via 1 AWG conductors. The cable is physically too thick to work with the existing 100A CT even though I won’t actually surpass 80A sustained (the two inverters would peak at 19 kW but the cabling is sized to support the full 22.8kW inverter capacity in the future if state law changes with respect to demand/standby charges - which currently apply to systems over 20 kW).
I thought the AcuCT-H100-200:333 would work so I placed an order for two, but I then discovered that from the forum that this is incompatible with the IoTaWatt. However, the above link to CircuitIQ no longer works. The only option is to purchase the $500 IoTaWatt kit, which I do not need. I currently have two 200A CTs (mains power), two 100A CTs, and 10 50A CTs. I just need two more 200A CTs to replace the 100A CTs I was using to monitor my solar output. Is there an alternative source for compatible 200A CTs in the US?
EDIT: I just realized I only need a single 200A CT. I set up the IoTaWatt in 2022 so I forgot how I had configured the CT. The input settings show I just used a single 100A CT and doubled the output . This turned out to accurately match my output. I probably initially measured both and found the output was identical.
If you can get to the two inverter outputs you can put a 200 on each. Otherwise, I’ll look around when I get to the shop next week and see what I might have in a single 200 Amp CT.
Not sure what I was doing wrong before but when I tried again, I was able to get the 100A CT around the 1 AWG conductor without issue. The thickness of 1 AWG is supposed to be 0.43-0.49" so I’m really not sure why I was having difficulty before given the 0.63" rated opening. Thanks for the help, though.
In terms of the inverter setup. I previously had the single inverter connected to my two main legs from the utility with taps. With the new system, they instead ran each 11.4kw inverter to a 125A load center. The original system runs at the full 11.4kw while the new system is de-rated to 7.6kW to stay under the 20 kW AC limit where expensive demand charges are imposed (easily could be $50/mo). So, there’s currently a 100A main breaker, a 60A breaker for the old system, and a 40A breaker for the new one. The load center then connects to the mains via two Polaris plugs. As such, the cables from the load center already combine the output of the two inverters. My old configuration of a single 100A CT with doubling should still work. I can compare against the SolarEdge monitoring to see if there’s a significant discrepancy.
