Phocos CX 20 Amp 12/24 Volt PWM Charge Controller

Manufacturer Part Number: CX-20

The CX series is a sophisticated solar charge controller family with exceptional features in this price range. 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, as well as energy flows from and to the battery and the load status (e.g. overload, load short circuit). The deep discharge protection function can be set up to three different modes: voltage controlled, SOC controlled or adaptive (fuzzy logic).

Acoustic warnings are built in, also a programmable nightlight function. As an accessory we can provide an Excess Energy Management output to control special Phocos appliances like the SF solar refrigerators/coolers. The compact case design is prepared for DIN rail mounting (mounting device available as an accessory).

Features

Charge and discharge status display
Acoustic load disconnect pre-warning
Load status indication
Choose between 5 load disconnect algorithms
Boost/absorption/float PWM-regulation (series type)
Integrated temperature compensation
Covered terminals (up to 16 mm2 wire size)
Full solid-state protection

Specifications

CML	CX 10	CX 20	CX 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	14.4/28.8 V (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 <12.1/24.2 V
Overvoltage protection	15.5/31.0 V
Undervoltage protection	10.5/21.0 V
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	< 4 mA
Grounding	positive grounding possible
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
Weight	168 g 179 g
Dimensions (W xH x D)	92 x 93 x 38 mm
Type of protection	IP22