Yes this is on p8 of the TS MPPT manual:
To comply with the National Electric Code (NEC), the current rating of the controller must be
equal to or greater than 125% of the solar array’s short circuit current output (Isc). Therefore, the
maximum allowable solar array input to the TriStar MPPT 150V controller for compliance with the
NEC is:
TS-MPPT-30: 24 amps Isc*
TS-MPPT-45: 36 amps Isc*
TS-MPPT-60: 48 amps Isc* *Solar array Isc @ STC
My array Isc is about 8 amps and 675 watts. Maybe another reason to go series.
TS MPPT manual
