TECHNICAL DATA
9.2 SPECIFICATIONS ALPHA PRO II REGULATOR
Model: Alpha Pro II
Part number: 45512000
Suitable for alternator type: Alpha 12/90, 12/130, 24/75, 24/110, 24/150, Bosch alternators via
a cable adapter (included)
Nominal operation voltage: 12V /24V selectable, Li-ion voltages selectable via MasterBus
only, with
Bulk / absorption voltage 12V [Li-ion]*: 14.25V [ 14.6V ]
Float voltage 12V [Li-ion]*: 13.25V [ 13.5V ]
Bulk / absorption voltage 24V [Li-ion]*: 28.50V [ 29.2V ]
Float voltage 24V [Li-ion]*: 26.50V [ 27.0V ]
Adjustable range – absorption [Li-ion]*: 13–15V [26-30V ]
Adjustable range – float [Li-ion]*: 13–13.9V [26-27.8V ]
Battery temperature compensation: – 30mV/°C
Absorption time 4 hours, adjustable range: 0 min up to 24 hours
Cable assembly 1.5 mtr oil resistant connection cable + Bosch connector included
Temperature sensor Included
Dimensions (hxwxd) See figure 18
Weight: 0.4 kg / 0.9 lbs
* Voltage at 25°C (with connected temperature sensor 14.4/28.8V at 20°C)
**See APPENDIX for outline drawings
Figure 18: Dimension drawings of the Alpha Pro II regulator in mm [inch]
95,0 [3.74]
109 [4.30]
89,8 [3.53]
86,7 [3.41]
29,5 [1.16]
Snijdersbergweg 93, 1105 AN Amsterdam, The Netherlands
Tel : + 31-20-3422100
Fax : + 31-20-6971006
Email : info@mastervolt.com
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