[RE-wrenches] Fortress Envy CTs on 200 amp wire

[Kirk Herander]

The last 12 Kw envy I installed, two months ago, came with a 300 amp rating
printed right on the CT’s. I can vouch for the fact they fit across 4/0
wire with room to spare.



*Kirk Herander / **kirkh at vermont.solar <kirkh at vermont.solar>*

*Owner|Principal, VT Solar, LLC*

*Celebrating our 35th Anniversary 1991-2026!!*

dba Vermont Solar Engineering

802.559.1225

On Wed, May 6, 2026 at 12:48 PM Dana Orzel via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> The included CTs are good for about 100amp wire. I did a search for a
> compatible CT for 200 amp & found it months ago but cannot recall where. I
> would contact Fortress.
>
>
>
> Good time for this Question: are CTs compatible across the board inverter
> to inverter? Is a 200amp CT for one inverter OK on another inverter?
>
>
>
> _________________________________________________________
>
> Dana Orzel                GREAT SOLAR WORKS!
>
> C – 208.721.7003      E – dana at solarwork.com
>
> W - www. greatsolarworks.com     www.solarwork.com
>
> *“Responsible Technologies for Responsible People since 1988!”*
>
>
>
>
>
> ---------- Forwarded message ----------
> From: William Miller via RE-wrenches <re-wrenches at lists.re-wrenches.org>
> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
> Cc: William Miller <william at millersolar.com>
> Bcc:
> Date: Tue, 5 May 2026 20:02:33 +0000
> Subject: [RE-wrenches] Fortress Envy CTs on 200 amp wire
> Friends:
>
> The included CTs are too small. Anyone else face this problem?
>
> TIA.
>
>
> William Miller
> Miller Solar.com
> 805-438-5600
> www.millersolar.com
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