MPPT Charge Controllers: 

R.J. Frey Technologies has standardized on Epever and Victron MPPT charge controllers for all of our solar “off-grid” power back-up system designs with discrete components. We currently offer (35A, 45A, 60A, 70A, 80A, 85A, 100A, & 200A) charging options at various solar array voltages. The performance history of these MPPT solar charge controllers are excellent.

These charge controllers have advanced MPPT technology with an ultra-fast tracking speeds up to 99.5% with maximum DC/DC transfer efficiency as high as 98.7%. The Epever MT-50 remote control programming /monitoring interface module is included with each controller. Victron also offers a wide array of remote display type options for system data acquisition and parameter programming.

See product data sheets below for more technical information: