PV Module Requirements Requirement 650W Maximizer 420W Maximizer Maximum Rated Power Output 650 W 420 W Maximum Short Circuit Current (Isc) 20 A 20 A Maximum Open Circuit Voltage (Voc) 75 V 60 V
Series String Requirements Requirement 650W Maximizer 420W Maximizer Maximum # of PV Modules per String 24 20 Minimum # of PV Modules per String 9 9 Minimum # of PV Modules within +/- 5° pitch and azimuth 7 7 Maximum Usable Power per String 6.5 kW 6.5 kW Maximum DC Current per String 16 A 16 A Maximum STC Nameplate Power per String 8.4 kW 8.4 kW
Parallel String Requirements Requirement 650W Maximizer 420W Maximizer # of Parallel Strings Allowed 3 3 Uneven String length Allowed Yes Yes Maximum Total DC Current from PV to Inverter 37.5 A 37.5 A Maximum Total Usable Power 15 kW 15 kW
Communication Distance Each Maximizer only needs to be in the communication range of a single Maximizer (or Maximizer Hub) to communicate with the Lunar System.
Environment Wifi Mesh Communication Range (point to point) Metal Roof 30 ft (9 m) Any other roof 60 ft (18 m) Free Air 100 ft (30 m)
420W Maximizers and 650W Maximizers are allowed on the same PV string.
Output voltage from each PV module is individually controlled per each Maximizer to stay within the inverter operating input range. Do not apply string inverter design rules to planning module-level MPPT systems.
