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Series / paralell switch box intallation manual 1.0 - 2002

Series / paralell switch box installation

Installation

1. Install the thruster as per the installation instructions following it, but disregard the wiring

diagram which are being replaced by the diagrams in this manual. Make sure to use the

correct main cable size according to the length to thruster as listed in the thrusters manual.

PS ! The length measurements in this list is the total of the + and - cable.

2. Bolt the box to a bulkhead in an accesible location as close to the two battery banks as

possible. It should be positioned so that the cable openings face down .

3. Connect the heavy main cables, main battery switches and fuses as described in the

“visual” wiringdiagram to the thruster, series/paralell switch box and batteries. Make sure

to label all cables in both ends to ensure correct connection points. Remember to fit the

rubber seals around the cables and in the box. All the connection studs in the series/

paralell switch box are ø10mm . (See FIG.3 and FIG.4)

4. Check again that the main cable wiring in the system is correct !

5. Extend the included 2-lead wire coming out of the series/paralell switch box (grey and

black) and connect these to the lower connectors on the thrusters main solenoid contactor.

(See FIG.3 + FIG.5)

6. Install the controlpanel(s) as per the instructions. The panels should be connected directly

to the thruster as in a “normal” installation without a series/paralell switch box.

7. If you are installing a sternthruster, make sure to follow the instructions in the sternthruster

installation manual to move the electronic controlbox away from the thruster and seal the

thruster compartment from general bilgewater. The electric installation of bow and stern

thrusters must be treated as seperate thrusters in terms of electric wiring so that each

thruster must have its own series paralell box with all the connections and a seperate

Batt.2 and the 2-lead controlcable between the series paralell box and the thruster.

There is an example diagram (FIG.6) on page 7. You can also use seperate battery bank 1

for each thruster, remember the 12V charge feed as described.

NB! If you are installing both a bow and a sternthruster with series/paralell switch boxes the

Batt.1 bank can be common for both thrusters providing it has the necessary capasity

(minimum x 2,5) but there must be an individual Batt.2 for each thrusters. (see FIG. 6)

Minimum battery capacities

Batt.1 Batt.2 Slow fuse / main switch rating

SP155TC 600CCA din 600CCA din 400A for 10 minutes

SP200TC 750CCA din 750CCA din 550A for 10 minutes

SP220TC 800CCA din 800CCA din 600A for 10 minutes

- CCA din is the Cold Cranking Amps rating by the DIN standard.

If your battery is rated by other standards, you should use the following factors:

DIN = SAE & BCA / 1,9 (Example: rating is 800 CCA BCA = 421 CCA DIN)

DIN = IEC / 1,3

REMEMBER: Bigger and more powerful batteries and cables will increase the thrusters performance

as there will be less voltage drop to the thruster. The sizes mentioned in the manuals are the

minimum sizes and the larger, the better.

1 2 3 4 5 6 7 8

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