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MidNite Solar Classic 200 SL
The Classic SL-200 MPPT Charge Controller is a simplified SOLAR ONLY version of the Classic 200 with streamlined menus. The Classic SL-200 has a graphics panel and ground fault but no arc fault or Ethernet capabilities. The Classic SL-200 has a maximum output current of 79 amps, an operating voltage of 200 volts and works with 12 to 72 volt battery systems. As with the whole Classic line, the Classic 200-SL has MidNite’s exclusive
which extends VOC limits when needed. With a streamlined menu, these SOLAR only MPPT charge controllers are easy to setup and a breeze to install!
The lines on the graph represent the Classic output current at different Max Power Points Voltage (not VOC). To estimate the Max Power Point of your system; first you have to find out the VOC of the Photovoltaic strings connected to the Classic. For example If 5 Modules in series in one string and STC VOC rating is 36.6V, then the VOC of the string equals: 5(modules) * 36.6v(STC VOC) = 183V.
The rule of thumb says that the MPP will be around 80% of the string's VOC; 183v * 0.8 = 146.4v On the graph of the Classic model you have, the X axis represents the Battery Voltage and the Y axis is the Output current. Knowing that, go to the corresponding graph and look for the a line close to your system's MPP voltage and you can then determine the max output power for your system design.
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Specifications & Documents
Go Power- Solar Controller Knockout Box
SRNE 40 AMP MPPT Charge Controller
Morningstar SunSaver Duo SSD-25
MidNite Solar Classic 200
Morningstar - SunLight SL-20L-24V
MidNite Solar Classic 150 Lite
Morningstar SunSaver SS-MPPT-15L
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