Analytic Systems SolarMax SMP100, Installation & Operation Manual

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10
Circuit Protection
All electrical circuits require protection from over current and short circuits and the SolarMax is no exception. The
SolarMax should be installed with circuit breakers or fused disconnects on the input and output. The SolarMax
has a maximum current limit of 100 amps on the output and it is designed and listed to run at its maximum rating
continuously. A breaker or fuse rated at 100 amps carrying current at the highest expected ambient temperature should
be wired between SolarMax and the battery bank.
The maximum input current needs to be calculated. The best way is to divide the array power by the array maximum
power voltage. In our example above, we have an array power of 9450 watts and a maximum power voltage of 160
volts giving a maximum input current of 60 amps, only slightly less than the short circuit current. So the minimum circuit
breaker or fuse rating is 60 amps at the highest expected ambient temperature.
If a disconnect is fitted on either the input or the output of the SolarMax, it should have a minimum current rating equal
to the maximum input or output current as calculated above.
The circuit would require a 160 amp input breaker. Of course the 1.56 multiplier has to be applied specifically to your
installation and if your anticipated Isc is lower then the wiring and disconnects will reflect this.
Lightning Protection
Like any other electronic device the SolarMax may be damaged during lightning storms if left unprotected. We strongly
recommend not letting the SolarMax get struck by lightning.
The box you have received should contain:
• 1 SMP100 SolarMax MPPT Charge Controller
• 1 Battery Temperature Sensor
• 1 Serial Connection Cable
• This Manual
• Warranty Card
If anything is missing from your box, please contact your dealer.
Box Contents