
Phocos CXN20 Solar Charge Controller (12/24V)
Description
Phocos CXN20
PV solar charge controller
The Phocos 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).
Example of standard PV diagram with
Phocos CXN Series (or other PWM charge controller) optionally with
Phocos 110/230V off-grid pure sine wave solar inverter
Standard PV solar diagram | PV solar diagram with an Pure Sine Wave Inverter (230V/50Hz or 110V/60Hz) |
![]() |
![]() |
Main Components |
Main Components |
Downloads
Phocos CXN series - Datasheet
Phocos CXN series - User Manual
Phocos CXN series - CE Certificate
CXCOM software
CXCOM configuration software for CX-controllers, quick and easy configuration of individual load-time and system components.
CXCOM ver_V5.0_2011-09-02_0 software: download (4.7MB)
CXCOM manual PDF download (1.2MB)
CXCOM installations guide VISTA PDF download (0.5MB)
CXCOM installations guide WIN98/2000/XP PDF download (0.5MB)
Technical Data
Product | Phocos CXN 10A | 20A | 40A |
Type | Charge Controller 12/24V |
System | Photovoltaic Systems |
Function | Overcharge Protection |
Batteries | GEL, AGM, Lead-Acid, Flooded |
Charging Mode | PWM |
Nominal Voltage | 12/24V automatic detection |
Max. charge/load current | 10A |20A | 40A |
Float charge | 13.7/27.4V (25°C) |
Main charge | 14.4/28.8V (25°C) 30min (daily) |
Boost charge | 14.4/28.8V (25°C) 2h activation: battery voltage <12.3/24.6V |
Equalization | 14.8/29.6V (25°C) 2h activation: battery voltage <12.1/24.2V |
Max. panel voltage | 30/50V (Voc) for 12/24V Systems |
Deep discharge protection | State of charge dependent A:11.4–11.9V/22.8–23.8V | B:11.0–11.75V/22.0–23.5V | Voltage dependent A: 11.0/22V B: 11.5/23V | Adaptive 11.0–12.2V / 22.0–24.4V | Reconnect level 12.8/25.6V |
Overvoltage protection | 15.5/31.0V |
Undervoltage protection | 10.5/21.0V |
Temperature compensation | -25 mV/K at 12V | -50 mV/K at 24V |
Self consumption | < 6mA |
Grounding | negative grounding possible |
Ambient temperature | −20 to +50°C |
Max. height | 4.000m above sea level |
Wire cross section | < 16 mm2 |
Weight | 168g | 179g |
Dimensions (WxHxD) | 92x93x38 mm |
Protection class | IP22 |
Warranty | 2 years |