MPPT Solar ChargeMaster 25 – User and Installation Manual
6 TECHNICAL DATA
6.1 SPECIFICATIONS
MPPT Solar ChargeMaster 25
Nominal battery voltage (U
NOM
)
12V and 24 V (Auto detection)
Maximum connected PV power
Full power voltage MPPT range
Absolute maximum PV Voltage
Yes, integrated MPP tracker
Peak static power conversion efficiency
Maximum charge current (I
MAX
)
Charge voltage, Absorption:
14.25V (Traction: 14.45V)
13.25V
(AGM, gel: 13.8V, MLI: 13.5V)
26.5V
(AGM, gel: 27.6V, MLI: 27.0V)
Battery temperature compensation
DC consumption (at night):
DC consumption (on, no charging):
Three step (Bulk, Absorption, Float)
Flooded, AGM, Gel, Traction, Mastervolt MLI.
25 A, max 36A peak for 1 sec.
25 A, max 36A peak for 1 sec.
Galvanic isolation between PV and battery
No, common negative conductor
Dimensions in mm [inch] (h x w x d):
135 x 190 x 73 mm [5.3 x 7.5 x 2.9 inch]; see also section 6.2
Operating Temperature Range
–20°C ≤ T
AMB
≤ +55°C [–4°F ≤ T
AMB
≤ 131°F]
Full Power Temperature range
–20°C ≤ T
AMB
≤ +40°C [–4°F ≤ T
AMB
≤ 104°F] (no power de-rating)
Non-operating Temperature range
–40°C ≤ T
AMB
≤ +75°C [–4°F ≤ T
AMB
≤ 167°F] (storage temperature)
Screw terminals, max. wire size 10mm
2
* Automatic limitation of input power; excessive power will not be converted
** Refer to section 4.8.2 for battery type settings.
Specifications are subject to change without prior notice.