8
5693
2
2019
-
SE60/185 S2
MC_0035
Thruster Electrical Installation
EN
IMPORTANT
Check the following with the main switch set to off :
After all electrical connections have been completed check with an ohm meter that there is no electrical connection between
1. electro-motor fl ange and the positive terminal on the motor
2. electro-motor fl ange and the battery negative terminal on the motor
If unsure contact skilled personnel.
1. Explanation of electrical table.
see next page
- 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.
2. Use appropriate sized cables and batteries with a high cranking capacity to feed the thruster. The actual voltage at the motor while running the
thruster decides the motors output RPM and thrust. You can use larger cables for better results.
- Advised minimum cables and batteries sizes.
See next page
.
3. Connect the battery supply to the thruster or control unit (PPC).
- Install a main manual/ automatic switch that can take the load without noticeable voltage drop from the positive lead terminal on the battery
to the thruster (or PPC unit). The main switch must be accessible to turn off the thruster independently from the rest of the electrical operation
of the vessel when not onboard or in emergencies.
(NB: It is advised to install a fuse after the main switch on the positive cable for
protection against short-circuiting of the main cables. The fuse should ensure no voltage decrease, slow-blow and sized to take the
amperage draw for at least 5 minutes.)
- A circuit breaker can be used instead of the fuse and main power switch If the functionality is the same.
4. Remember to use ignition protected fuses and switches if fi tted in areas that require this feature.
(NB: For Ignition Protected installations)
5. Cables must have adequate isolation against contact with anything but the lead terminal on the battery and fi tted with cable ends.
6. Fasten cables to the required torque.
see next page
!
Please refer to the graphic for special considerations relating to your model
!
MG_0019
Thuster
Motor
Battery
12V or
24V
Fuse
Main
switch
Nut
Tighten to
15Nm/ 11lb/ft
Nut
Tighten to
15Nm/ 11lb/ft
washers
Lugs
+
+
-
-
IMPORTANT
Do NOT use washers between lugs
and terminals, this can cause
overheating. Washers must be placed in
the outer position before tightening nut.
