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9
SE 40/125S ignition protected thruster assembly 1.0 - 2007
• Explanation of electrical table
- All cable lengths are the total of + and - (to and from).
- Battery size is stated as minimum cold crank capacity, not Ah.
- Use slow fuse rated to hold stated Amp-Draw for min. 5 minutes.
* Cable size and main battery size when an extra bow battery with minimum the CCA mentioned as A is installed.
• It is important that you use a good cable size and batteries with a high cranking capacity to feed the thruster, because it is the actual
voltage at the motor while running the thruster that decides the output rpm of the motor and thereby the actual thrust. Please see the
list below for advised min. sizes of cables and batteries. You can of course use larger cables for even better results.
• A main switch (*C) that can take the load without noticable voltage drop must be installed in the main positive lead so the power
for the thruster can be turned off independently of the rest of the system when not on board or in emergencies. This should be placed
in an easily accessible place and the boats instructions should include information that this should be turned off like the other main
switches of the boat.
• We also advice to install a fuse (*D) in the positive lead for protection agains short circuiting of the main cables. This fuse should be
of a adequate quality which normally means that it is physically large as these have less voltage drop than the simple / small ones. It
should be of the slow type and sized to take the amperage draw for atleast 5 minutes.
• Remember to use ignition protected fuses and switches if tted in areas that require this feature.
• A circuit breaker can be used instead of the fuse and main power switch as long as the functionality is the same.
• The cable ends must be tted with terminals and these must be well isolated against contact with anything but the proper connection
point.
• If the main switch and fuse are installed in the same gas area they also have to be ignition protected.
• The negative / minus cable connects to the (-) terminal. Bolt M10. Tighten with 25 Nm / 18,43 lb/ft.
• The positive / plus cable connects to the "+" terminal. Bolt M10. Tighten with 25 Nm / 18,43 lb/ft.
Electrical installation
Battery & cable recommendations:
Minimum and recommended cable dimensions can be identical due to safety margins and cable heat considerations for short cable lenghts.
* Minimum or recommended cable cross section in mm
2
SE40/125S 12 V 280 A DIN: 300
SAE: 570
mm
2
AWG
35
1
50
1/0
50
1/0
70
2/0
95
3/0
120
4/0
120
4/0
2x95
2x 3/0
2x95
2x 3/0
2x120
2x 4/0
2x120
2x 4/0
260*
Model Voltage Nominal
current
draw
Min. battery
CCA
>7m total + & - 7-14m total + & - 15-21m total + & - 22-28m total + & - 28-35m total + & - 36-45m total + & -
Min. Rec. Min. Rec. Min. Rec. Min. Rec. Min. Rec. Min. Rec.
SE30/125S 12 V 195 A DIN: 200
SAE:380
mm
2
AWG
25
1
35
1
35
1
50
1/0
50
1/0
95
3/0
70
2/0
120
4/0
95
3/0
2x70
2x 2/0
120
4/0
2x95
2x 3/0
9
SE 60/185S ignition protected thruster assembly 1.0 - 2007
• Explanation of electrical table
- All cable lengths are the total of + and - (to and from).
- Battery size is stated as minimum cold crank capacity, not Ah.
- Use slow fuse rated to hold stated Amp-Draw for min. 5 minutes.
* Cable size and main battery size when an extra bow battery with minimum the CCA mentioned as A is installed.
• It is important that you use a good cable size and batteries with a high cranking capacity to feed the thruster, because it is the actual
voltage at the motor while running the thruster that decides the output rpm of the motor and thereby the actual thrust. Please see the
list below for advised min. sizes of cables and batteries. You can of course use larger cables for even better results.
• A main switch (*C) that can take the load without noticable voltage drop must be installed in the main positive lead so the power
for the thruster can be turned off independently of the rest of the system when not on board or in emergencies. This should be placed
in an easily accessible place and the boats instructions should include information that this should be turned off like the other main
switches of the boat.
• We also advice to install a fuse (*D) in the positive lead for protection agains short circuiting of the main cables. This fuse should be
of a adequate quality which normally means that it is physically large as these have less voltage drop than the simple / small ones. It
should be of the slow type and sized to take the amperage draw for atleast 5 minutes.
• Remember to use ignition protected fuses and switches if tted in areas that require this feature.
• A circuit breaker can be used instead of the fuse and main power switch as long as the functionality is the same.
• The cable ends must be tted with terminals and these must be well isolated against contact with anything but the proper connection
point.
• If the main switch and fuse are installed in the same gas area they also have to be ignition protected.
• The negative / minus cable connects to the (-) terminal. Bolt M10. Tighten with 25 Nm / 18,43 lb/ft.
• The positive / plus cable connects to the "+" terminal. Bolt M10. Tighten with 25 Nm / 18,43 lb/ft.
Electrical installation
Model Voltage Nominal
current
draw
Min. battery
CCA
>7m total + & - 7-14m total + & - 15-21m total + & - 22-28m total + & - 28-35m total + & - 36-45m total + & -
Min. Rec. Min. Rec. Min. Rec. Min. Rec. Min. Rec. Min. Rec.
SE60/185S 12 V 340 A DIN: 350
SAE:665
mm
2
AWG
35
1
50
1/0
60
2/0
95
3/0
95
3/0
2x 70
2x 2/0
120
4/0
2x95
2x 3/0
2x 95
2x 3/0
2x120
2x 4/0
2x120
2x 4/0
280*
24 V 170 A DIN: 175
SAE: 332
mm
2
AWG
25
1
35
1
25
1
35
1
25
1
35
1
35
1
50
1/0
50
1/0
60
2/0
60
2/0
70
2/0
Battery & cable recommendations:
Minimum and recommended cable dimensions can be identical due to safety margins and cable heat considerations for short cable lenghts.
* Minimum or recommended cable cross section in mm
2
Battery
12V or 24V
+
-
*D
*C
Counter Nut
Cable terminal
Counter Nut
RED: +
BLACK: -