Max current for mppt charge controller
- Thread starter Ajuma
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PaulLyons
New Member
I believe the victron number scheme is that the first number is the PV voltage and the second is the current.
Ajuma
New Member
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- Jan 27, 2022
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True but that is the output current. What is max input current?
It's listed on the data sheet. "Max. PV short circuit current: 35A":
Ajuma
New Member
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- Jan 27, 2022
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Noted, thanks.
Bud Martin
Solar Wizard
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- Aug 27, 2020
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The 35A rating is for if you have PV reverse polarity connection to the PV input, you can over panel the system but you must pay attention to the max PV Input Voltage.
9.5.1. PV reverse current too high Overcurrent does not necessarily damage the solar charger, but it will cause damage if the array produces too much current while, at the same time, the array has been connected in reverse polarity to the solar charger. Damage due to overcurrent is not covered under warranty. Refer to the solar chargers technical specifications for the maximum PV short circuit power current rating.
Page 54 has more details than the Data sheet:
1a) The solar charger will limit input power if more PV power is connected.
1b) The PV voltage must exceed Vbat + 5V for the controller to start. Thereafter the minimum PV voltage is Vbat + 1V.
2) A higher short circuit current may damage the solar charger in case of reverse polarity connection of the PV array.
3) Equalization is by default disabled.
4) For more information on data communication see the data communication paper in the Technical information section on our website.
9.5.1. PV reverse current too high Overcurrent does not necessarily damage the solar charger, but it will cause damage if the array produces too much current while, at the same time, the array has been connected in reverse polarity to the solar charger. Damage due to overcurrent is not covered under warranty. Refer to the solar chargers technical specifications for the maximum PV short circuit power current rating.
Page 54 has more details than the Data sheet:
1a) The solar charger will limit input power if more PV power is connected.
1b) The PV voltage must exceed Vbat + 5V for the controller to start. Thereafter the minimum PV voltage is Vbat + 1V.
2) A higher short circuit current may damage the solar charger in case of reverse polarity connection of the PV array.
3) Equalization is by default disabled.
4) For more information on data communication see the data communication paper in the Technical information section on our website.
