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Phocos CXN-20 > 20 Amp 12/24 Volt Charge Controller
Phocos 20 Amp 12/24 Volt Charge Controller - CXN-20

Our Price: $121.50
Warranty: 2 Years

Product Code: PHOCOS-CXN-20

Description Datasheet

Phocos 20 Amp 12/24 Volt Charge Controller

Manufacturer Part Number: CXN-20

The CXN series is a sophisticated solar charge regulator family with negative grounding. Beside a perfect PWM regulation with integrated temperature compensation, the controllers provide extraordinary display, programming and safety functions. The battery state of charge is clearly displayed with a bar chart. The deep discharge protection function can be set up to five different modes: voltage controlled, SOC controlled or adaptive SOC controlled. Acoustic warnings are built in, also a programmable night- light function.

The compact case design is prepared for DIN rail mounting (mounting device available as an accessory).


  • Built-in 1 Year Data Logger for System Analysis
  • Choose between 5 load disconnect algorithms
  • Temperature compensated 3 Stage (Boost/absorption/float) PWM Series Regulation
  • Automatic 12/24 V detection
  • Prepared for DIN rail mounting (CX-DR2.1)
  • Optional external temperature sensor (CXNT)
  • Optional remote display (CXM multi-meter)
  • Optional USB interface (CXI + CXCOM)


TypeCXN 10CXN 20CXN 40
System voltage12/24 V auto recognition
Max. charge/load current10 A20 A40 A
Float charge13.7/27.4 V (25 C)
Main charge14.4/28.8 V (25 C), 30 min. (daily)
Boost charge14.4/28.8V(25 C), 2 h activation: battery voltage <12.3/24.6 V
Equalization14.8/29.6 V (25 C), 2 h activation: battery voltage <12.1/24.2V
Overvoltage protection15.5/31.0 V
Undervoltage protection10.5/21.0V
Max. panel voltage
(Overvoltage protection by varistor)
30 V in 12 V system
50 V in 24 V system
Temperature compensation
(Charge voltage)
-25 mV/K at 12 V -50 mV/K at 24 V
Self consumption< 6 mA
Groundingnegative grounding possible
Ambient temperature-20 to +50 C
Max. height4,000 m above sea level
Battery typelead acid (GEL, AGM, flooded)
Wire cross section< 16 mm2
Weight168 g179 g
Dimensions (W xH x D)92 x 93 x 38 mm
Type of protectionIP22

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