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PWM = Puls-Wide-Modulation Charging Method

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 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

PWM

Phocos CM04 Phocos CM04
Producer: Phocos
€ 14.00
Net Price (without VAT)
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Phocos CML-USB-05 Phocos CML-USB-05
Producer: Phocos
€ 25.00
Net Price (without VAT)
Phocos ECO-N-10 Phocos ECO-N-10
Producer: Phocos
€ 30.00
Net Price (without VAT)
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Phocos ECO-N-10-T Phocos ECO-N-10-T
Producer: Phocos
€ 45.00
Net Price (without VAT)
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Phocos CM10 Phocos CM10
Producer: Phocos
€ 19.00
Net Price (without VAT)
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Phocos CML-USB-10 Phocos CML-USB-10
Producer: Phocos
€ 36.00
Net Price (without VAT)
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  • new
Phocos CXNup10 Phocos CXNup10
Producer: Phocos
€ 69.00
Net Price (without VAT)
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Phocos CIS-N-10 Phocos CIS-N-10
Producer: Phocos
€ 48.00
Net Price (without VAT)
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  • new
Phocos ECO-N-20-T Phocos ECO-N-20-T
Producer: Phocos
€ 63.00
Net Price (without VAT)
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Phocos CML-USB-20 Phocos CML-USB-20
Producer: Phocos
€ 54.00
Net Price (without VAT)
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Phocos CXNup20 Phocos CXNup20
Producer: Phocos
€ 92.00
Net Price (without VAT)
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Phocos CIS-N-20 Phocos CIS-N-20
Producer: Phocos
€ 69.00
Net Price (without VAT)
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Phocos CIS-N-LED-1050 Phocos CIS-N-LED-1050
Producer: Phocos
€ 99.00
Net Price (without VAT)
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Phocos CIS-N-LED-1400 Phocos CIS-N-LED-1400
Producer: Phocos
€ 99.00
Net Price (without VAT)
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Phocos CIS-N-LED-2800 Phocos CIS-N-LED-2800
Producer: Phocos
€ 99.00
Net Price (without VAT)
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Phocos CXNup40 Phocos CXNup40
Producer: Phocos
€ 113.00
Net Price (without VAT)
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Phocos CML10 Solar charge controller (12/24V) Phocos CML10 Solar charge controller (12/24V)
Producer: Phocos
€ 40.00
Net Price (without VAT)
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Phocos CXN20 Solar Charge Controller (12/24V) Phocos CXN20 Solar Charge Controller (12/24V)
Producer: Phocos
€ 90.00
Net Price (without VAT)
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Phocos CXN40 Solar Charge Controller (12/24V) Phocos CXN40 Solar Charge Controller (12/24V)
Producer: Phocos
€ 140.00
Net Price (without VAT)
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Phocos CX20-48V Solar Charge Controller (24/48V) Phocos CX20-48V Solar Charge Controller (24/48V)
Producer: Phocos
€ 130.00
Net Price (without VAT)
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