Mastervolt Alpha 12/90 - Technical Data; Specifications Alpha alternators

TECHNICAL DATA
EN / Alpha alternator - Alpha Pro regulator / June 2007 23
8 TECHNICAL DATA
8.1 SPECIFICATIONS ALPHA ALTERNATORS
12V models
Model: 12/90 12/130
Part number: 48012090 48012130
Type enclosure (see APPENDIX): A B
Charge current: 90A 130A
Recommended DC fuse 125A 160A
Recommended DC wire size
up to 3 m AWG2 - 35mm² AWG0 - 50mm²
3 m up to 5 m AWG0 - 50mm² AWG2/0 - 70mm²
Nominal voltage 12V 12V
Charge regulator: Alpha Pro 12V Alpha Pro 12V
Pulley diameter: Ø 73 mm Ø 88 mm
Belt tread: 2x 2x
Isolated from ground: Yes Yes
Rotating directions: 2 2
Maximum speed: 8000 rpm 8000 rpm
Pulley: Double Double
Required transmission belt A-type A-type
Weight: 5.5 kg/ 12.1 lbs 10.1kg / 22.3 lbs
Number of mounting positions: 3 1
24V models
Model: 24/75 24/110 24/150 24/95 Compact
Part number: 48024075 48024110 48024150 46020950
Type enclosure (see APPENDIX): B B C D
Charge current: 75A 110A 150A 95A
Recommended DC fuse 100A 160A 200A 125A
Recommended DC wire size
up to 3 m AWG3 - 25mm² AWG2 - 35mm² AWG0 - 50mm² AWG3 - 25 mm²
3 m up to 5 m AWG2 - 35mm² AWG0 - 50mm² AWG2/0-70mm² AWG2 - 35 mm²
Nominal voltage 24V 24V 24V 24V
Charge regulator: Alpha Pro 24V Alpha Pro 24V Alpha Pro 24V Alpha Pro-B 24V
Pulley diameter: Ø 88 mm Ø 88 mm Ø 92 mm Ø 76.4 mm
Belt tread: 2x 2x 2x 2x
Isolated from ground: Yes Yes Yes Yes
Rotating directions: 2 2 2 1 (clockwise)
Maximum speed: 8000 rpm 8000 rpm 8000 rpm 10000 rpm
Pulley: Double Double Double Double
Required transmission belt A-type A-type A-type A-type
Weight: 10.1kg / 22.3 lbs 10.1kg / 22.3 lbs 13.1kg / 28.9 lbs 7.9kg / 17.4 lbs
Number of mounting positions: 1 1 3 1
See APPENDIX for dimensions