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Sizing the charge controllers in PV off-grid systems (general rules):

  • 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 12Vdc systems: ~10Vmin.bat + 30V = 40V 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 CIS-N-MPPT-LED Phocos CIS-N-MPPT-LED
Manufacturer:: Phocos
€ 169.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CIS-N-MPPT-85/15 Phocos CIS-N-MPPT-85/15
Manufacturer:: Phocos
€ 123.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos ECO-N-MPPT 85/15 Phocos ECO-N-MPPT 85/15
Manufacturer:: Phocos
€ 105.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CXNup40 Phocos CXNup40
Manufacturer:: Phocos
€ 104.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CXNup20-2B Solar Charge Controller, Negative Grounding, Two Battery Loader (12/24V) Phocos CXNup20-2B Solar Charge Controller, Negative Grounding, Two Battery Loader (12/24V)
Manufacturer:: Phocos
€ 102.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CXNup20 Phocos CXNup20
Manufacturer:: Phocos
€ 85.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CIS-N-LED-2800 Phocos CIS-N-LED-2800
Manufacturer:: Phocos
€ 85.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CIS-N-LED-1400 Phocos CIS-N-LED-1400
Manufacturer:: Phocos
€ 85.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CIS-N-LED-1050 Phocos CIS-N-LED-1050
Manufacturer:: Phocos
€ 85.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos MCU | Modular Central Unit Phocos MCU | Modular Central Unit
Manufacturer:: Phocos
€ 80.00 € 160.00
excl. 23% VAT, excl. shipping costs
pcs.
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  • Outlet
Phocos CXN40 Solar Charge Controller (12/24V) Phocos CXN40 Solar Charge Controller (12/24V)
Manufacturer:: Phocos
€ 70.00 € 140.00
excl. 23% VAT, excl. shipping costs
pcs.
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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
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CXNup10 Phocos CXNup10
Manufacturer:: Phocos
€ 64.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CIS-CU | Phocos Configuration Unit for CIS controllers Phocos CIS-CU | Phocos Configuration Unit for CIS controllers
Manufacturer:: Phocos
€ 62.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CIS-N-20 Phocos CIS-N-20
Manufacturer:: Phocos
€ 59.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos ECO-N-20-T Phocos ECO-N-20-T
Manufacturer:: Phocos
€ 55.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos MXI232 | Modular RS232 Interface for CXNup Series Phocos MXI232 | Modular RS232 Interface for CXNup Series
Manufacturer:: Phocos
€ 47.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos MXI-IR | PC USB interface, IR for CIS series Phocos MXI-IR | PC USB interface, IR for CIS series
Manufacturer:: Phocos
€ 47.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos MXI-USB | Modular PC USB Interface for CXNup anu ECO-N-MPPT Phocos MXI-USB | Modular PC USB Interface for CXNup anu ECO-N-MPPT
Manufacturer:: Phocos
€ 47.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CML-USB-20 Phocos CML-USB-20
Manufacturer:: Phocos
€ 47.00
excl. 23% VAT, excl. shipping costs
pcs.
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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
excl. 23% VAT, excl. shipping costs
pcs.
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  • Outlet
Phocos CXN20 Solar Charge Controller (12/24V) Phocos CXN20 Solar Charge Controller (12/24V)
Manufacturer:: Phocos
€ 45.00 € 90.00
excl. 23% VAT, excl. shipping costs
pcs.
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  • Outlet
Phocos ECO-N-10-T Phocos ECO-N-10-T
Manufacturer:: Phocos
€ 42.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CIS-N-10 Phocos CIS-N-10
Manufacturer:: Phocos
€ 42.00
excl. 23% VAT, excl. shipping costs
pcs.
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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
excl. 23% VAT, excl. shipping costs
pcs.
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  • Outlet
Phocos CMMsolid | Remote Display for the CMLsolid Charge Controller Phocos CMMsolid | Remote Display for the CMLsolid Charge Controller
Manufacturer:: Phocos
€ 37.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CML20 Solar Charge Controller (12/24V) Phocos CML20 Solar Charge Controller (12/24V)
Manufacturer:: Phocos
€ 33.00 € 66.00
excl. 23% VAT, excl. shipping costs
pcs.
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  • Outlet
Phocos CML-USB-10 Phocos CML-USB-10
Manufacturer:: Phocos
€ 33.00
excl. 23% VAT, excl. shipping costs
pcs.
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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
excl. 23% VAT, excl. shipping costs
pcs.
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  • Outlet
Phocos CML15 Solar charge controller (12/24V) Phocos CML15 Solar charge controller (12/24V)
Manufacturer:: Phocos
€ 30.00 € 60.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos ECO-N-10 Phocos ECO-N-10
Manufacturer:: Phocos
€ 28.00
excl. 23% VAT, excl. shipping costs
pcs.
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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
excl. 23% VAT, excl. shipping costs
pcs.
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  • Outlet
Phocos CML-USB-05 Phocos CML-USB-05
Manufacturer:: Phocos
€ 22.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CMM | Phocos meter for CA, CML, CML-NL Phocos CMM | Phocos meter for CA, CML, CML-NL
Manufacturer:: Phocos
€ 20.00 € 40.00
excl. 23% VAT, excl. shipping costs
pcs.
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  • Outlet
Phocos CML10 Solar charge controller (12/24V) Phocos CML10 Solar charge controller (12/24V)
Manufacturer:: Phocos
€ 20.00 € 40.00
excl. 23% VAT, excl. shipping costs
pcs.
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  • Outlet
Phocos CXM | Remote Display for CXN Phocos CXM | Remote Display for CXN
Manufacturer:: Phocos
€ 20.00 € 40.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CM10 Phocos CM10
Manufacturer:: Phocos
€ 19.00
excl. 23% VAT, excl. shipping costs
pcs.
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Phocos CXNT | External Temperature Sensor for CXN Phocos CXNT | External Temperature Sensor for CXN
Manufacturer:: Phocos
€ 15.00 € 30.00
excl. 23% VAT, excl. shipping costs
pcs.
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  • Outlet
Phocos CM04 Solar Charge Controller Phocos CM04 Solar Charge Controller
Manufacturer:: Phocos
€ 13.00
excl. 23% VAT, excl. shipping costs
pcs.
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