I read in another post each tracker is limited to 4000W. So with two trackers you have maximum of 8000W. But there is the additional limit of only 100A or 200A charge current to the battery depending on the model. My question is does the 200A model (which has 4 trackers) allow me to charge using all 8000W in my example whereas the 100A model would have only allowed approximately 5300W?
From the spec sheet the Smart Solar MPPT RS450-100/200
100A Unit All trackers combine max 5760W to battery >100 A x 57.6vdc "absorb voltage"
200A Unit All trackers combine max 11520W to battery >200 A x 57.6vdc "absorb voltage"
In the case of the 200 A version you could utilize just 3 of the trackers to hit the peek output to the batteries but keep in mind the most important numbers are max VOC and array ISC The RS450 is ideally used "series" strings of PV panels per tracker having multiple trackers is a great feature as you avoid cost and complications "parallel strings" combiners, breaker, fuses required with most lower voltage charge controllers.
In practice 4000W on single tracker even with modern 72 cell panels in a cold climate "think Canada" you could have up to 7 panels in series and be under the max VOC rating giving you a total 3850W=7x550. Best design would utilize 6 panels per tracker x 4 trackers "over paneling" the charge controller is ideal from a value stand point as panels don't hit the peak rating often or for long periods.
The absolute Maximum PV array size per tracker 7200 Wp (450 V x 20 A) (VOC x ISC)
