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Sizing the charge controllers in PV off-grid systems:

  • Do not exceed the controller allowed max current and voltage A/V defined as Isc/Voc.
  • In PWM controller max allowed voltage results from battery.min.voltage +30V (eg in 24Vdc systems: ~20Vmin.bat + 30V = 50V max).
  • In MPPT controller the absolute max allowed voltage is defined in the datasheet.
  • The real occuring current and voltage of the panel depends on temperature coefficient of the panel. Calculate additional 25% (A/V) which may occur under low temperature, as safety buffer (eg if panel Isc 8A, calculate +25% = 10A which may occur).
  • To choose the correct battery capacity, multiply the controller nominal current x10 (eg for an 10A controller choose 100Ah battery).
  • Always check the controller's datasheet and manual for individual parameters.


  
Diagrams    Guide PV Off-Grid Systems

Phocos CML-USB-05 Phocos CML-USB-05
Manufacturer:: Phocos
€ 22.00
Net Price (excl. VAT)
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Phocos ECO-N-10-T Phocos ECO-N-10-T
Manufacturer:: Phocos
€ 42.00
Net Price (excl. VAT)
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Phocos CML-USB-10 Phocos CML-USB-10
Manufacturer:: Phocos
€ 33.00
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Phocos CXNup10 Phocos CXNup10
Manufacturer:: Phocos
€ 64.00
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Phocos CIS-N-10 Phocos CIS-N-10
Manufacturer:: Phocos
€ 42.00
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Phocos ECO-N-20-T Phocos ECO-N-20-T
Manufacturer:: Phocos
€ 55.00
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Phocos CML-USB-20 Phocos CML-USB-20
Manufacturer:: Phocos
€ 47.00
Net Price (excl. VAT)
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Phocos CXNup20 Phocos CXNup20
Manufacturer:: Phocos
€ 85.00
Net Price (excl. VAT)
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Phocos CIS-N-20 Phocos CIS-N-20
Manufacturer:: Phocos
€ 59.00
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Phocos CIS-N-LED-1050 Phocos CIS-N-LED-1050
Manufacturer:: Phocos
€ 85.00
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Phocos CIS-N-LED-1400 Phocos CIS-N-LED-1400
Manufacturer:: Phocos
€ 85.00
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Phocos CIS-N-LED-2800 Phocos CIS-N-LED-2800
Manufacturer:: Phocos
€ 85.00
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Phocos CXNup40 Phocos CXNup40
Manufacturer:: Phocos
€ 104.00
Net Price (excl. VAT)
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Phocos ECO-N-MPPT 85/15 Phocos ECO-N-MPPT 85/15
Manufacturer:: Phocos
€ 105.00
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Phocos CIS-N-MPPT-LED Phocos CIS-N-MPPT-LED
Manufacturer:: Phocos
€ 169.00
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Phocos CIS-N-MPPT-85/15 Phocos CIS-N-MPPT-85/15
Manufacturer:: Phocos
€ 123.00
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Phocos CIS-N-MPPT 100/30 Phocos CIS-N-MPPT 100/30
Manufacturer:: Phocos
€ 260.00
Net Price (excl. VAT)
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Phocos CML10 Solar charge controller (12/24V) Phocos CML10 Solar charge controller (12/24V)
Manufacturer:: Phocos
€ 20.00 € 40.00
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Phocos CML20 Solar Charge Controller (12/24V) Phocos CML20 Solar Charge Controller (12/24V)
Manufacturer:: Phocos
€ 33.00 € 66.00
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Phocos CXN20 Solar Charge Controller (12/24V) Phocos CXN20 Solar Charge Controller (12/24V)
Manufacturer:: Phocos
€ 45.00 € 90.00
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Phocos CXN40 Solar Charge Controller (12/24V) Phocos CXN40 Solar Charge Controller (12/24V)
Manufacturer:: Phocos
€ 70.00 € 140.00
Net Price (excl. VAT)
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Phocos CIS10-2L Industrial Solar Charge Controller IP68, dual load, timer (12/24V) Phocos CIS10-2L Industrial Solar Charge Controller IP68, dual load, timer (12/24V)
Manufacturer:: Phocos
€ 30.00 € 60.00
Net Price (excl. VAT)
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Phocos CIS20-2L Industrial Solar Charge Controller IP68, dual load, timer (12/24V) Phocos CIS20-2L Industrial Solar Charge Controller IP68, dual load, timer (12/24V)
Manufacturer:: Phocos
€ 45.00 € 90.00
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Phocos CIS10 Industrial Solar Charge Controller IP68, timer (12/24V) Phocos CIS10 Industrial Solar Charge Controller IP68, timer (12/24V)
Manufacturer:: Phocos
€ 27.00 € 54.00
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Phocos CIS20 Industrial Solar Charge Controller IP68, timer (12/24V) Phocos CIS20 Industrial Solar Charge Controller IP68, timer (12/24V)
Manufacturer:: Phocos
€ 39.00 € 78.00
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Phocos CX20-48V Solar Charge Controller (24/48V) Phocos CX20-48V Solar Charge Controller (24/48V)
Manufacturer:: Phocos
€ 65.00 € 130.00
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