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MASTERVOLT
Snijdersbergweg 93,
1105 AN Amsterdam
The Netherlands
Tel.: +31-20-3422100
Fax.: +31-20-6971006
www.mastervolt.com
Copyright © 2017 Mastervolt, 10000003207/03
MASTERVOLT
Snijdersbergweg 93,
1105 AN Amsterdam
The Netherlands
Tel.: +31-20-3422100
Fax.: +31-20-6971006
www.mastervolt.com
APPENDIX
ALPHA ALTERNATOR
DIMENSIONS, INSTALLATION DRAWINGS AND CHARACTERISTICS
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TABLE OF CONTENTS: 10000003207/03
1 DIMENSIONS .................................................................................................................................................. 3
1.1 Dimensions Alpha alternator model 12/90 ......................................................................................... 3
1.2 Dimensions Alpha alternator models 12/130, 24/75 and 24/110 ....................................................... 4
1.3 Dimensions Alpha alternator model 24/150 ....................................................................................... 5
1.4 Dimensions Alpha Pro III regulator ..................................................................................................... 6
2 INSTALLATION DRAWINGS AND INSTRUCTIONS .................................................................................... 7
2.1 Alpha Alternator model 12/90 ............................................................................................................. 7
2.2 Alpha Alternator models 12/130, 24/75 and 24/110 ........................................................................... 8
2.3 Alpha Alternator model 24/150 ........................................................................................................... 9
2.4 Standard Bosch alternator ................................................................................................................ 10
2.5 Instruction for modification of standard Bosch alternators ............................................................... 11
2.6 Installation examples for Alpha alternator model 12/90 ................................................................... 12
2.7 Installation examples for Alpha alternator models 12/130, 24/75 and 24/110 ................................. 14
3 CHARACTERISTICS .................................................................................................................................... 15
3.1 Charge current versus RPM ............................................................................................................. 15
4 ORDERING INFORMATION ......................................................................................................................... 16
4.1 Accessoires ...................................................................................................................................... 16
4.2 Spare parts ....................................................................................................................................... 16
2 March 2017 / APPENDIX Alpha alternator - Alpha Pro III regulator / EN
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1 DIMENSIONS
1.1 DIMENSIONS ALPHA ALTERNATOR MODEL 12/90
Figure A-1: Dimensions Alpha alternator model 12/90 (enclosure A)
EN / APPENDIX Alpha alternator - Alpha Pro II regulator / January 2013 3
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1.2 DIMENSIONS ALPHA ALTERNATOR MODELS 12/130, 24/75 AND 24/110
Figure A-2: Dimensions Alpha alternator models 12/130, 24/75, 24/110 and 24/150 (enclosure B)
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1.3 DIMENSIONS ALPHA ALTERNATOR MODEL 24/150
Figure A-3: Dimensions Alpha alternator model 24/150 (enclosure C)
EN / APPENDIX Alpha alternator - Alpha Pro II regulator / January 2013 5
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1.4 DIMENSIONS ALPHA PRO III REGULATOR
Figure A-5: Dimensions of the Alpha Pro III regulator (all models)
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2 INSTALLATION DRAWINGS AND INSTRUCTIONS
2.1 ALPHA ALTERNATOR MODEL 12/90
Figure A-6: Installation drawing Alpha alternator model 12/90
EN / APPENDIX Alpha alternator - Alpha Pro II regulator / January 2013 7
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2.2 ALPHA ALTERNATOR MODELS 12/130, 24/75 AND 24/110
Figure A-7: Installation drawing Alpha alternator models 12/130, 24/75 and 24/110
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2.3 ALPHA ALTERNATOR MODEL 24/150
Figure A-8: Installation drawing Alpha alternator model 24/150
EN / APPENDIX Alpha alternator - Alpha Pro II regulator / January 2013 9
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2.4 STANDARD BOSCH ALTERNATOR
Figure A-9: Installation drawing standard Bosch alternator
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Typical rear view of a Bosch alternator
Typische Rückansicht einer Bosch-Lichtmaschine
Standaard achteraanzicht van een Bosch dynamo.
Vue arrière de l'alternateur Bosch
Warning: Remove connection between D– and housing with standard Bosch brushholders. After
reinstallation of the brush holder, check with a multimeter if D– has no connection between the
alternating housing and D–
Waarschuwing: verbinding tussen D– en behuizing bij standaard Bosch-borstelhouders
verwijderen. Na herinstallatie van de borstelhouder met een multimeter controleren of D– niet in
verbinding staat met de behuizing van de dynamo en B–..
Warnhinweis: Verbindung zwischen D- und Gehäuse bei Standard-Bosch-Bürstenhaltern
entfernen. Nach der erneuten Installation des Bürstenhalters mit einem Universalinstrument
messen, ob D– keine Verbindung zwischen dem Lichtmaschinengehäuse und B– hat.
Attention: retirer la connexion entre D– et le boîtier à l'aide du porte-balais standard. Vérifier
(après avoir réinstallé le support porte-balais) avec un multimètre que D– n'a pas de connexion
entre le boîtier de l'alternateur et B–
Remove the by-pass on the back side of the brush holder between ground and D–
Verbinding aan de achterzijde van de borstelhouder tussen massa en D– verwijderen
By-Pass an der Rückseite des Bürstenhalters zwischen Masse und D– entfernen
Retirer le conduit à l'arrière du support porte-balais entre la terre et la borne D–
2.5 INSTRUCTION FOR MODIFICATION OF STANDARD BOSCH ALTERNATORS
Figure A-10: Standard Bosch alternator (not applicable for Mastervolt alternators)
EN / APPENDIX Alpha alternator - Alpha Pro II regulator / January 2013 11
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2.6 INSTALLATION EXAMPLES FOR ALPHA ALTERNATOR MODEL 12/90
Figure A-11: This drawing shows the installation of the Alpha alternator 12/90 in combination with a battery
isolator to charge two battery banks simultaneously
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Figure A-12: Here the installation of the Alpha alternator 12/90 in combination with a Mastervolt DC distribution
system is shown. The Mastervolt DC distribution systems are easy-to-install installation kits for central connection
of the DC-sources (such as the alternator and the battery charger), the batteries and the DC loads (such as the
inverter, the anchor winch or the bowthruster). These DC-distribution systems are standard pre-wired for
connection of a battery monitor. See www.mastervolt.com for details.
EN / APPENDIX Alpha alternator - Alpha Pro II regulator / January 2013 13
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2.7 INSTALLATION EXAMPLES FOR ALPHA ALTERNATOR MODELS 12/130, 24/75 AND 24/110
Figure A-13: This drawing shows the installation of the Alpha alternator models 12/130, 24/75 and 24/110 in
combination with a battery isolator to charge two battery banks simultaneously.
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3 CHARACTERISTICS
3.1 CHARGE CURRENT VERSUS RPM
Output power is measured in combination with Alpha Pro III regulator at nominal voltage (25°C)
Figure A-15: Characteristics for Mastervolt alternators: charge current versus RPM
EN / APPENDIX Alpha alternator - Alpha Pro II regulator / January 2013 15
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Part number
Description
83007021
Battery isolator BI 702 for two battery banks. For alternators up to 70 Amps,
83007030
Battery isolator BI 703 for three battery banks. For alternators up to 70 Amps,
83012021
Battery isolator BI 1202 for two battery banks. For alternators up to 120 Amps,
83012031
Battery isolator BI 1203 for three battery banks. For alternators up to 120 Amps,
83116025
Battery Mate 1602-IG, low voltage drop battery isolator for two battery banks. For alternators up
to 160 Amps
83116035
Battery Mate 1603-IG, low voltage drop battery isolator for three battery banks. For alternators
up to 160 Amps
6384010000
Industrial DC fuse 100A DIN 00
6384012500
Industrial DC fuse 125A DIN 00
6384016000
Industrial DC fuse 160A DIN 00
6384510000
Industrial DC fuse 100A DIN 1
6384512500
Industrial DC fuse 125A DIN 1
6384516000
Industrial DC fuse 160A DIN 1
6384520000
Industrial DC fuse 200A DIN 1
6381001000
Fuse base DIN 0 (max. 160A)
6381002000
Fuse base DIN 1 (max. 250A)
Part number
Description
45512000
Alpha Pro II regulator
45513000
Alpha Pro III regulator
41500400
Alternator temperature sensor cable (2m)
41500500
Battery temperature sensor
45510500
Bosch adapter cable
48400110
Brush holder for alternator models 12/90 12/130, 24/75 and 24/110
48400150
Brush holder for alternator model 24/150
48400010
Pulley for two belts, for alternators model 12/90
48400020
Pulley for two belts, for alternators models 12/130, 24/75and 24/110
Snijdersbergweg 93, 1105 AN Amsterdam, The Netherlands
Tel : + 31-20-3422100
Fax : + 31-20-6971006
Email : info@mastervolt.com
www.mastervolt.com
4 ORDERING INFORMATION
4.1 ACCESSOIRES
Mastervolt can offer a wide range of products for your electrical installation, including battery chargers, AGM- and
Gel batteries, DC-switches, battery monitoring panels and DC distribution kits
See our website www.mastervolt.com for an extensive overview of all our products
4.2 SPARE PARTS
These parts are for after-sales applications only:
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