Required continuous current rating for an off-grid PV charge controller — PWM (array short-circuit current) or MPPT (array power ÷ battery voltage) — with the NEC 690.8(A) 125% continuous factor.
NEC 690.8(A) 125% continuous-current factor applied to PWM array Isc or MPPT power/voltage current
Generated
For preliminary engineering use only — always verify results against project-specific standards and a qualified engineer's review before use in a real design.