TECHNICAL DATA
EN / Chargemaster 12/25-3, 24-12-3 / February 2010 17
7 TECHNICAL DATA
7.1 SPECIFICATIONS
Specifications are subject to change without prior notice.
Model 12/25-3 24/12-3
Article no. 44010250 44020120
Nominal input voltage: 120/230V 120/230V
Nominal input frequency: 50/60Hz 50/60Hz
Full load consumption: 450VA 435VA
Efficiency at full load (230V AC): ≥80% @ 230V input ≥80% @ 230V input
Nominal output voltage: 12V 24
Total maximum charge current: 25A at 13.25V 12A at 26.5V
Number of battery outputs: 3 3
Output voltage range adjustable 0 to15.5V DC 0 to 31V DC
Charge characteristic: IUoUo, automatic, three step IUoUo, automatic, three step
Charge voltage Bulk: 14.4V 28.8
Charge voltage Absorption: 14.25V 28.5
Charge voltage Float; 13.25V 26.5
Max. absorption and max. bulk timer: 8 hours (start max. bulk timer at 13.25V) 8 hours (start max. bulk timer at 13.25V)
Minimum absorption time: 15 min. 15 min.
Battery type settings: Lead acid battery/ gel/ / AGM / spiral
(adjustable by means of display or
MasterBus)
Lead acid battery/ gel/ AGM / spiral
(adjustable by means of display or
MasterBus)
Dimensions in mm/ inch: See section 7.2 See section 7.2
Weight:
< 1.8 Kg/ 4.0Lbs including AC cable < 1.8 Kg/ 4.0Lbs including AC cable
Recommended battery capacity:
55 Ah 25 Ah
Power factor regulations ≤ 0.99 ≤ 0.99
Temperature compensation Yes Yes
Voltage compensation Yes, automatic compensation with
battery temperature sensor.
Yes, automatic compensation with
battery temperature sensor.
DC consumption <2mA <2mA
Temperature range -25°C ... 60°C / -13°F … 140°F, power
derating 2.85%/°C (5.13%/°F) above
25°C / 77 °F to decrease the internal
temperature. From -25°C to 0°C / -13°F
to 32°F, 90% derating.
-25°C ... 60°C / -13°F … 140°F (power
derating 2.85%/°C (5.13%/°F) above
25°C / 77 °F to decrease the internal
temperature). From -25°C to 0°C / -13°F
to 32°F, 90%derating.
Cooling Vario fan and natural cooling to ensure
optimized cooling.
Vario fan and natural cooling to ensure
optimized cooling.
Sound level <50dBA / 1m <50dBA / 1m
Protection degree IP23 IP23
Approvals Fully CE and E-marking according to
automotive directive 95/54/EG.
Fully CE and E-marking according to
automotive directive 95/54/EG.
Communication Full MasterBus Full MasterBus
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