All Charge Controllers


CE Certificate CXN 1.1User Manual CXNDatasheet CXN

Optional Accessories

CX-DR2-DIN Rail Holder

User Manual CX-DR2

CXM - Remote Display

User Manual CXMDatasheet CXM

CXNT - Temperature Sensor

User Manual CXNT

CXCOM Application Software

CXCOM Software Instruction ManualCXCOM Version 5.0
  • 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)
  • 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).

CXN 10

CXN 20

CXN 40

System voltage 12/24 V auto recognition
Max. charge/load current 10 A

20 A

40 A

Float charge 13.7/27.4 V (25 °C)
Main charge 14.4/28.8 V (25 °C), 30 min. (daily)
Boost charge 14.4/28.8V(25 °C), 2 h activation: battery voltage <12.3/24.6 V
Equalization 14.8/29.6 V (25 °C), 2 h activation: battery voltage <12.1/24.2V
Deep discharge protection:
State of charge dependent

Voltage dependent

Reconnect level

A: 11.4 – 11.9 V /22.8 – 23.8 V
B: 11.0 – 11.75 V / 22.0 – 23.5 V
A: 11.0/22V
B: 11.5/23 V
11.0 – 12.2 V / 22.0 – 24.4 V
12.8/25.6 V
Overvoltage protection 15.5/31.0 V
Undervoltage protection 10.5/21.0V
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
Grounding Negative grounding
Ambient temperature −20 to +50 °C
Max. height 4,000 m above sea level
Battery type Lead acid (GEL, AGM, flooded)
Wire cross section < 16 mm2

168 g

179 g

Dimensions (W x H x D) 92 x 93 x 38 mm
Type of protection IP22