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Mass
24/15-2
Mass
24/25-2
Mass
24/25-2 DNV
Mass
24/50-2
Item #
40020156
40020256
40720266
40020506
General Specifications
Nominal output voltage
24V
24V
24V
24V
Total charge current
15A at 28.5V
25A at 28.5V
25A at 28.5V
50A at 28.5V
Number of battery outlets
2
2
2
2
Charge current second output
3A
3A
3A
3A
Recommended battery capacity
30–150 Ah
50–250 Ah
50–250 Ah
100–500 Ah
Nominal input voltage
230V (180–265V) – 50/60Hz
230V (180–265V) – 50/60Hz
Supplies your system without battery
yes
yes
yes
yes
Display/read-out
LED display
LED display
LED display
LED display
Dimensions, hxwxd
12.8"x8.7"x4.4"
325x220x111 mm
12.8"x8.7"x4.4"
325x220x111 mm
14.4"x8.7"x4.4"
365x220x111 mm
13.4"x10.3"x5.1"
340x261x130 mm
Weight
3.3 kg / 7.3 lbs
3.3 kg / 7.3 lbs
3.5 kg / 7.7 lbs
4.6 kg / 10.1 lbs
Approvals*
CE, ABYC A-31 / RRR, RS
CE, ABYC A-31 / RRR, RS,
DNV
CE, ABYC A-31 /
RRR, RS
Technical Specifications
Charge characteristic**
IUoUo, automatic / 3-step for gel/AGM/wet/Lithium Ion
Charge voltage Bulk (25°C)***
28.5V (8 hours)
28.5V (8 hours)
28.5V (8 hours)
28.5V (8 hours)
Charge voltage Absorption (25°C)***
28.5V (4 hours)
28.5V (4 hours)
28.5V (4 hours)
28.5V (4 hours)
Charge voltage Float – wet (25°C)***
26.5V
26.5V
26.5V
26.5V
Charge voltage Float – gel/AGM (25°C)*** 27.6V
27.6V
27.6V
27.6V
Temperature compensation
-33 mV/°F
-60 mV/°C
-33 mV/°F
-60 mV/°C
-33 mV/°F
-60 mV/°C
-33 mV/°F
-60 mV/°C
Voltage compensation
voltage drop compensation in DC cables up to 3 volt
DC consumption
<1 mA
<1 mA
<1 mA
<1 mA
Full load consumption (230V AC)
550 W
880 W
880 W
1800 W
Cos phi
>0.95
>0.95
>0.95
>0.95
Temperature range (ambient temp.)
-25°C–80°C, >45°C derating
-25°C–80°C, >45°C derating
Cooling
vario fan
vario fan
vario fan
vario fan
Sound level
<48 dBA at 1 mtr
<48 dBA at 1 mtr
<48 dBA at 1 mtr
<48 dBA at 1 mtr
Protection degree
IP23
IP23
IP23
IP23
Protections
over temperature, over load, short circuit, high battery, low battery
MasterBus compatible
yes
yes
yes
yes
CSI/DC alarm (Charger Status Interface)
integrated in the battery charger as standard
Options
MasterView Read-out
option
option
option
option
77010050
Remote panel for reading the charge status of your battery charger, including error notifications.
MasterView Easy
option
option
option
option
77010305
Touch screen panel for reading charge status, current fold-back and/or Power Sharing setting.
MasterShunt
option
option
option
option
77020100
MasterBus integrated shunt, with detailed information on the status of your batteries for a optimized charging process, incl...
DC Distribution
option
option
option
option
77020200
Smallest distribution model available. It connects up to four DC devices to the DC groups, such as a battery charger, inverter,...
MasterBus USB Interface
option
option
option
option
77030100
Communication port between MasterBus and the USB port of your PC; makes possible reading and configuration of your...
C3-RS panel
option
option
option
option
70403040
Remote monitor for battery chargers, with a regulator for reducing grid power consumption.
GMDSS remote panel
option
option
option
option
70400050
Remote monitoring for Mass battery chargers, with GMDSS system monitoring functions. Battery voltage and current...
* Check our website for the certificates per model.
** The charge characteristic can be set to your requirements.
*** The battery charge current can sometimes be specified at 20°C/68°F, so take temperature compensation into account.
Convert:
Mass Specifications – 12, 24 & 48V