FoxESS Community - Owners & Installers Forum

Can I use any type of CT clamp with my F3600, or does it have to be the Fox specific device?

Fox don’t make the CT clamps, but it has to be the correct specification i.e. split core 100A/33.33mA - Fox use the CTA016

You can get them quite cheap from here https://theecosupermarket.co.uk/produc ... inverters/

Or

https://www.powerland.co.uk/products/f ... aio-ranges

Or

https://www.tradesparky.com/solarspark ... aio-ranges

Many thanks Dave

Can the Clamp go either side of the generation meter (emlite type) as in:

F3600 > clamp > isolator > meter > Isolator > CU

or

F3600 > Isolator > meter > CT clamp > Isolator > CU

RobM wrote: Sun Mar 02, 2025 2:18 pm Many thanks Dave

Can the Clamp go either side of the generation meter (emlite type) as in:

F3600 > clamp > isolator > meter > Isolator > CU

or

F3600 > Isolator > meter > CT clamp > Isolator > CU

It needs to measure load vs export so ideally wants to be as near to the smart meter as possible - if you don't have an EV then fit it to the live feed out of the smart meter, that way everything that happens before the CT clamp is house load, and everything passing through it is what is left ~export. , following your annotation would be:

F3600 > Isolator > meter > Isolator > CU> CT clamp > Smart Meter

No smart meter yet, and no chance of having one fitted this side of July, plus the meter is outside the house some 15 metres away from the inverter, so a long cable run from the Clamp back to the F3600 in the loft

I have two CUs in the following configuration

Ring and lights etc > 1st CU > Tails > Henley Block > Dumb Meter > Main Power

F3600 > Isolator > meter > Isolator > 2nd CU > Tails > Henley Block > Dumb Meter > Main Power
............................................Heat Pump___I