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5. Technical Parameters
5.1 Electrical parameters
Model
System voltage
Zero load loss
Battery voltage
Maximum PV open
circuit voltage
Maximum power point
voltage range
Rated charging current
Maximum PV input power
Charging conversion
efficiency
MPPT tracking efficiency
Temperature compensation
coefficient
Operating temperature
IP rating
Weight
Communication mode
Altitude
Dimensions(mm)
Items
Parameters
MC2420N10 MC2430N10 MC2440N10 MC2450N10
12V/24V
<10mA
9V~32V
92V(25℃);100V(Lowest ambient temperature)
(Battery voltage +2V) ~ 72V
20A 30A 40A 50A
260W/12V
520W/24V
400W/12V
800W/24V
550W/12V
1100W/24V
660W/12V
1320W/24V
≤98%
>99%
-3mv/℃/2V(default); Lithium battery features no temperature compensation
-35℃ ~ +45℃
IP32
650g
830g
1040g 1335g
TTL Serial communication
≤ 3000 meters
150*105.6*61.5 150*105.6*67.5 183*127*65.5 183*127*69.5
5.2. Battery type default parameters
Set voltage
Battery type
Overvoltage
disconnection
voltage
Equalizing
charge voltage
Boost charge
voltage
Floating charge
voltage
Boost charge
recovery voltage
Equalizing charge
duration
Equalizing charge
interval
Boost charge
duration
Comparison of parameters of various types of battery
Sealed lead-acid
battery
16.0V
14.6V
14.4V
13.8V
13.2V
120 min.
30 days
120 min.
Colloidal lead-acid
battery
16.0V
——
14.2V
13.8V
13.2V
——
0 days
120 min.
Vented lead-acid
battery
16.0V
——
14.8V
14.6V
13.8V
13.2V
120 min.
30 days
120 min.
——
——
——
——
——
——
14.4V
Lithium battery
User defined
9~17V
9~17V
9~17V
9~17V
9~17V
0~600 min.
0~250D
(0 indicates turning off
equalizing charge function)
10~600 min.
If a user-defined battery is used, the default voltage parameters of the system are the same as those of
the sealed lead-acid battery. The following logic must be followed when you modify battery charge and
discharge parameters:
Overvoltage disconnection voltage> charge limit voltage ≥ equalizing charge voltage ≥ boost charge
voltage ≥ floating charge voltage> boost charge recovery voltage;
Overvoltage disconnection voltage> Overvoltage disconnection recovery voltage;
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