SLEIPNER MOTOR AS SAC240 User manual

SLEIPNER MOTOR AS
P.O. Box 519
N-1612 Fredrikstad
Norway
www.sleipnergroup.com
DOCUMENT ID:
REVISION:
DATE:
LANGUAGE:
Installation Guide
For AC Electric Thruster Models
SAC240, SAC320
5996
15
2023
EN
I M

25996 15 2023
-
SAC 240 & SAC 320
Sleipner Motor AS
P.O. Box 519, Arne Svendsensgt. 6-8
N-1612 Fredrikstad, Norway
MC_0020
Contents
Installation Manual
Responsibility of the Installer................................................................................................................................................................... 3
General Installation Consideration and Precaution Guidelines ............................................................................................................... 3
Product Measurements ........................................................................................................................................................................ 4
Measurements, PDC .............................................................................................................................................................................. 5
Measurements, VFD............................................................................................................................................................................... 5
Product Specications............................................................................................................................................................................ 6
Positioning of the tunnel / thruster.......................................................................................................................................................... 7
Tunnel Length......................................................................................................................................................................................... 8
Tunnel installation in Sailboats ............................................................................................................................................................... 9
Water Deection ................................................................................................................................................................................... 10
Tunnel ends.......................................................................................................................................................................................... 11
Tunnel installation................................................................................................................................................................................. 12
Supporting the Thruster........................................................................................................................................................................ 14
Stern tunnel installation ........................................................................................................................................................................ 15
Gear Leg & Motor Bracket Installation.................................................................................................................................................. 16
Propeller Installation............................................................................................................................................................................. 18
Coupling Installation ............................................................................................................................................................................. 19
VFD Installation .................................................................................................................................................................................... 22
PDC 301 .............................................................................................................................................................................................. 23
Startup and Commissioning ................................................................................................................................................................ 23
Functions and Operation ...................................................................................................................................................................... 24
Power Cable Dimensions ..................................................................................................................................................................... 24
Wiring Diagram .................................................................................................................................................................................... 25
S-link Planning & Precautions ............................................................................................................................................................. 28
Control Panel Cable Installation .......................................................................................................................................................... 29
Control Panel Installation ..................................................................................................................................................................... 30
Checklist for AC Thrusters ................................................................................................................................................................... 31
Service and Support........................................................................................................................................................................... 32
Product Spare Parts and Additional Resources.............................................................................................................................. 32
Warranty Statement............................................................................................................................................................................ 32

3
5996 15 2023
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SAC 240 & SAC 320
MC_0031
For electric motor thrusters
• The thruster must NOT be installed in compartments that require ignition proof electric equipment. If necessary, make a separate compartment.
(NB: Sleipner Ignition Protected systems are tested and rated accordance with ISO 8846 and can be installed in areas with possible explosive
gases.)
• When installing the thruster electric motor in small compartments, ensure the compartment is dry and well ventilated to allow for cooling of the
electric motor.
• If the height of the room you are installing the thruster is limited, the thruster can be installed horizontally or at any angle in-between.
- If the electro motor is positioned more than 30 degrees off vertical, it must be supported separately.
- Beware of keeping installation within advised measurements. No part of the propeller or gear leg must be outside the tunnel.
• The electric motor, components and cables must be mounted so they remain dry at all times.
• Do not fi nish the inside of the tunnel with a layer of gel-coat/ topcoat or similar. There is only room for a thin coat of primer and two layers of anti-
fouling between the tunnel and the props.
• Don’t install the electric motor close to easily flammable objects or equipment as it will reach over 100°C before the temperature switch is
activated.
• Do not store items close to the thruster motor. Any loose items near the thruster motor is a potential fi re hazard and can cause undesired short-
circuiting.
• Do not lift it by internal cable connections, main terminals.
• The thruster power supply circuit must include the recommended sized fuse and a battery isolation switch.
• The electric/ hydraulic motor must be handled with care. Do not rest the thruster motor on its drive shaft as its weight can damage the shaft.
The installer must read this document to ensure necessary familiarity with the product before installation.
Instructions in this document cannot be guaranteed to comply with all international and national regulations. It is the responsibility of the
installer to follow all applicable international and national regulations when installing Sleipner products.
The recommendations given in this document are guidelines ONLY, and Sleipner strongly recommends that advice is obtained from a person
familiar with the particular vessel and applicable regulations.
This document contains general installation instructions intended to support experienced installers. If you are not skilled in this type of work,
please contact professional installers for assistance.
If required by local regulation, electrical work must be done by a licensed professional.
Appropriate health and safety procedures must be followed during installation.
Faulty installation of Sleipner products will render all warranties given by Sleipner Motor AS.
Ensure appropriate access to Sleipner products during installation planning for service, inspection and component replacement.
MC_0038
Responsibility of the Installer
Failure to follow the considerations and precautions can cause serious injury, damage and will render all
warranties given by Sleipner Motor as VOID. MC_0411
MC_0425
For thruster systems
• Do not install the thruster in a position where you need to cut a stiffener/ stringer/ support that may jeopardise the hull integrity without checking
with the boat builder this can be done safely.
• Paint the gear leg and propellers with anti-fouling. (NB: Do not paint the anodes (if in use), sealing, rubber fi ttings or propeller shafts)
• There is only room for a thin coat of primer and two layers of anti-fouling between the tunnel and the props.
• Never run the thruster out of water without load.
When installing an S-Link™ system connect ONLY original Sleipner S-Link™ products or other authorized control equipment directly to the S-Link™ bus.
Connecting non-authorized third-party equipment, it must always be connected through a Sleipner supplied interface product.
Any attempt to directly control or connect into the S-Link™ control system without a designated and approved interface will render all warranties and
responsibilities of all of the connected Sleipner products. If you are interfacing the S-Link™ bus by agreement with Sleipner through a designated
Sleipner supplied interface, you are still required to install at least one original Sleipner control panel to enable efficient troubleshooting if necessary.
MC_0105
MC_0440
General Installation Consideration and Precaution Guidelines

45996 15 2023
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SAC 240 & SAC 320
MG_0163
TL
(a)
(b)
WD
H
LW min.
150mm
ID
T
Propeller or gear
leg must never
extend out of
the tunnel
Tunnel centre line
Twin Propeller
MC_0271
Product Measurements
Measurement
code Measurement description mm inch mm inch
ID Internal tunnel diameter 250 9.8 300 11.8
T (min) Tunnel thickness min. 7 .3 10 .4
T (max) Tunnel thickness max. 10 .4 10 .4
TL Minimum tunnel length 300 11.8 300 11.8
TL (recommended) Recommended tunnel length 550 21.7 550 21.7
WD Minimum water depth 380 11 450 17.7
H Motor Height 688 27.1 703 27.7
W Motor width 262 10.3 262 10.3
L Motor length 347 13.7 347 13.7
SAC240 SAC320
MC_0639
Product mm inch mm inch
SAC240/250-C-2-H 482 18.97 820 32.28
SAC240/250-C-2-V 393 15.47 820 32.28
SAC240/250-C-4-H 482 18.97 820 32.28
SAC240/250-C-4-V 393 15.47 820 32.28
SAC320/300-I-2-H 524 20.62 863 33.97
SAC320/300-I-2-V 431 14.97 863 33.97
SAC320/300-I-4-H 524 20.62 863 33.97
SAC320/300-I-4-V 431 14.97 863 33.97
SAC320/300-I-4L-H 524 20.62 863 33.97
SAC320/300-I-4L-V 431 14.97 863 33.97
(a) (b)

5
5996 15 2023
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SAC 240 & SAC 320
MG_0163
TL
(a)
(b)
WD
H
LW min.
150mm
ID
T
Propeller or gear
leg must never
extend out of
the tunnel
Tunnel centre line
Twin Propeller
MC_0155
Measurements, PDC
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
Stock nr
PDC-301
Date
31/01/2019
Part Nr
SM-146487
©
Contents of this document is
the intellectual property of
Sleipner Motor AS. It may not
be copied or reproduced
without written authorization
by Sleipner motor AS
Title
Drive Controller
Description
SAC Thruster / Side-Power
SLEIPNER MOTOR AS
Size
A3
Designed by
Elvira H.
Sheet
1/1
Revision
12LAST_VERSION
73,7
96
121
104,1
43
107
42,67
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
Stock nr
PDC-301
Date 31/01/2019
Part Nr SM-146487
© Contents of this document is
the intellectual property of
Sleipner Motor AS. It may not
be copied or reproduced
without written authorization
by Sleipner motor AS
Title Drive Controller
Description
SAC Thruster / Side-Power
SLEIPNER MOTOR AS
Size A3
Designed by Elvira H.
Sheet 1/1
Revision 12LAST_VERSION
73,7
96
121
104,1
43
107
42,67
42.67
104.1
121
107
96
73.7
MG_0663
W
H
VFD protection: IP21
D
MC_0638
Measurements, VFD
Thruster model VFD model Frame
size
Weight
Kg
D
mm
W
mm
H1
mm
DSU calc
kWA
Amp
calc
SAC240/250-C-2-H ACS580-01-047A-2 R3 11.8 228 203 454 17 45
SAC240/250-C-2-V ACS580-01-047A-2 R3 11.8 228 203 454 17 45
SAC240/250-C-4-H ACS580-01-033A-4 R3 11.8 228 203 454 17 24.8
SAC240/250-C-4-V ACS580-01-033A-4 R3 11.8 228 203 454 17 24.8
SAC320/300-C-2-H ACS580-01-089A-2 R5 28.3 295 203 732
SAC320/300-C-2-V ACS580-01-089A-2 R5 28.3 295 203 732
SAC320/300-C-4-H ACS580-01-046A-4 R3 11.8 228 203 454
SAC320/300-C-4-V ACS580-01-046A-4 R3 11.8 228 203 454
SAC320/300-C-4L-H ACH580-31-046A-4 R6 61 383 252 771
SAC320/300-C-4L-V ACS580-31-046A-4 R6 61 383 252 771
-H horizontal
-V vertical
-2 for 208-240V version
-4 for 380-480V version
SAC1400/610 thruster model
610 tunnel diameter
1400/ thrust value
-C operation mode
-I operation mode. See specifi cation table
MC_0639
Product mm inch mm inch
SAC240/250-C-2-H 482 18.97 820 32.28
SAC240/250-C-2-V 393 15.47 820 32.28
SAC240/250-C-4-H 482 18.97 820 32.28
SAC240/250-C-4-V 393 15.47 820 32.28
SAC320/300-I-2-H 524 20.62 863 33.97
SAC320/300-I-2-V 431 14.97 863 33.97
SAC320/300-I-4-H 524 20.62 863 33.97
SAC320/300-I-4-V 431 14.97 863 33.97
SAC320/300-I-4L-H 524 20.62 863 33.97
SAC320/300-I-4L-V 431 14.97 863 33.97
(a) (b)

65996 15 2023
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SAC 240 & SAC 320
MC_0153
Product Specifi cations
*) Max thrust is available until the motor winding temperature exceeds 130°C and the dynamic thrust limitation gradually decrease the thrust to continuous rated performance. **) Motor output @ 230/400V supply. Actual value may vary depending on supply voltage and thruster install. ***) Current draw values are max values set in the VFD parameter setup. ****) Listed generator load is the maximum load value at standard thruster setup. Note that this value is different from the required generator capacity. Required generator capacity will wary depending on generator characteristics and other loads on the system and have to be selected in cooperation with generator supplier. Side-Power SAC thrusters are in standard version powered by standard Variable Frequency Drives. Low harmonic drives (THD <5%) can be supplied on request. Indicative, recommended generator capacity to be 2 x listed generator load.
SAC240/250-C SAC320/300-I SAC360/300-C SAC400/300-C SAC450/386-C SAC520/386-I SAC520/386-C SAC700/412-C SAC750/513-I SAC900/513-I S AC 110 0 /513 - I S AC 110 0 /513 - C SAC1300/610-I SAC1400/610-I
Performance & sizing
Tunnel inside diameter
(mm • in) 250 • 9.8 300 • 11.8 300 • 11.8 300 • 11.8 386 • 15.2 386 • 15.2 386 • 15.2 412 • 16.2 513 • 20 513 • 20 513 • 20 513 • 20 610 • 24 610 • 24
Thrust, continuous
(kg • lbs) 240 • 529 280 • 617 360 • 794 400 • 882 450 • 992 450 • 992 520 • 1146 700 • 1543 600 • 1323 750 • 1653 900 • 1984 1100 • 2425 1100 • 2425 1200 • 2646
Thrust, max. (kg • lbs) * - 320 • 705 -- - 520 • 1146 - - 750 • 1653 900 • 1984 1100 • 2425 -1300 • 2866 1400 • 3086
Motor output (kW • Hp)** 14 • 19 21 • 27 27 • 37 30 • 41 28 • 38 35 • 48 35 • 48 42 • 57 41 • 56 53 • 72 70 • 95 70 • 95 74 • 101 83 • 113
Typical boat size (m • ft) 13-23 • 42-75 17-31 • 55-100 18-33 • 59-108 18-33 • 59-108 22-35 • 75-110 25-40 • 85-140 25-40 • 85-140 29-44 • 95-145 29-44 • 95-145 30-45 • 100-
150 32-49 • 105-160 32-49 • 105-160 40-52 • 130-170 40-55 • 130-175
Voltage range, 3-Phase
supply
208-240/380-
440V
208-240/380-
440V
208-240/380-
440V
208-240/380-
440V
208-240/380-
440V
208-240/380-
440V
208-240/380-
440V
208-240/380-
440V 380-440V 380-440V 380-440V 380-440V 380-440V 380-440V
Current draw max: ***
230V Systems: 51A 80A 106A 115A 106A 127A 127A 150A 153A 193A - - - -
400V Systems: 28A 46A 62A 65A 62A 73A 73A 87A 84A 106A 134A 134A 143A 160A
Generator load max:**** 19,5 kVA 29 kVA 36 kVA 39 kVA 37 kVA 47 kVA 47 kVA 56 kVA 49 KVA 61 KVA 81 KVA 81 KVA 86 kVA 97 KVA
Features
CE approved Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
DNV-GL type approved
gear leg Yes Yes Yes Yes Yes Yes Yes Yes
Proportional speed Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Propulsion system Twin Counter Twin Counter Twin Counter Twin Counter Twin Counter Twin Counter Twin Counter Twin Counter Twin Counter Twin Counter Twin Counter Twin Counter Twin Counter Twin Counter
Lubrication Sealed Sealed Gravity feed Gravity feed Gravity feed Gravity feed Gravity feed Gravity feed
Gravity feed/
On water
change
(optional)
Gravity feed/
On water
change
(optional)
Gravity feed/
On water change
(optional)
Gravity feed/
On water change
(optional)
Gravity feed/
On water change
(optional)
Gravity feed/
On water change
(optional)
Galvanic separation No No No No No No No No No No No No No No

7
5996 15 2023
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SAC 240 & SAC 320
important
MG_0001
A
B
Pivot
point
1
Ø
2
Lowered rotation power performance
Stronger rotation power performance
min 1/4
Ø
(Recommended)
min 1/4
Ø
(Recommended)
WD
Water line
Positioning of the tunnel / thruster MC_0003
Aim to install the thruster as far forward as possible (1)
Due to the leverage effect around the boats’ pivot point. The distance difference from the boat pivots’ point to the thruster will determine the amount
of real rotation power for the boat.
Aim to install the thruster as deep as possible under the waterline (2)
Deeper installations prevent air from being sucked into the tunnel from the surface, resulting in reduced thrust performance and increase noise levels
during operation. Deeper installations increase water pressure for maximum effi ciency from the thruster.
The centre of the tunnel should be as a general rule minimum of 1 x the tunnel diameter below the waterline. (NB: Refer to product measurements to
defi ne your products recommended depth below the waterline.) The installer must make evaluations based on thruster performance, boat type and
operating conditions. As a general recommendation, the position of the tunnel should not be a minimum of 1/4 of the diameter of the tunnel from the
boat keel. (NB: This can be overlooked depending on the installation methods defi ned in this manual.)

85996 15 2023
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SAC 240 & SAC 320
1
2
3
4 65
MG_0048
Increase tunnel length to protect
the propeller from water forces
when high-speed cruising.
Water
Forces
Increase tunnel length to
prevent a circular water vacuum
cavity between the propeller and
the hull of the boat.
STANDARD USE FLAT BOTTOM HULL HIGH-SPEED OPERATION
Do not allow the variable length of the tunnel walls to vary in length
excessively.
EG. the top tunnel wall is x 4 longer than the bottom wall.
Cavitation
Water flow must have
space to "straighten"
itself for best
performance.






The gear leg/ propeller(s) must
never extend out of the tunnel
Optimal tunnel length
Achieving the correct tunnel length depends on many factors from the hull type, operation and environmental conditions.
Tunnels should avoid being longer than 4 x the tunnel diameter as this will reduce thruster performance. (NB: Installing long length tunnels can flex/
bend over time and may require additional support. Consult with a naval architect.)
1. Do not allow the variable length of the tunnel walls to vary in length excessively.
EG. The top tunnel wall is x 4 longer than the bottom wall.
2. If the tunnel is too long, the friction inside will reduce the water speed and thereby the thrust.
3. If the tunnel is too short (typically only in the bottom section of the tunnel) cavitation problems can occur as water flow will not be able to
“straighten” itself before reaching the propeller. This cavitation will reduce performance and increase noise during operation.
Thruster within the tunnel
It is important the propellers and the lower unit/ gear leg must be entirely inside the thruster tunnel. Propellers that protrude from the tunnel will not
perform as intended.
4. Standard Use
Tunnel length must be long enough to ensure the propellers are not extruding the tunnel. (NB: Refer to product measurements to defi ne your
products recommended tunnel length.)
5. Flat Bottom Hull
Tunnel lengths must be longer than the standard measurement outlined within the manual to ensure a circular vacuum is not created between the
thruster and the bottom of the boat.
6. High-Speed Boats
Tunnel lengths must be increased to protect the propeller from damage when crashing against the water surface during high-speed cruising. (NB:
This can include the length of a spoiler)
MC_0003
Tunnel Length

9
5996 15 2023
-
SAC 240 & SAC 320
1
2
3
4 65
MG_0048
Increase tunnel length to protect
the propeller from water forces
when high-speed cruising.
Water
Forces
Increase tunnel length to
prevent a circular water vacuum
cavity between the propeller and
the hull of the boat.
STANDARD USE FLAT BOTTOM HULL HIGH-SPEED OPERATION
Do not allow the variable length of the tunnel walls to vary in length
excessively.
EG. the top tunnel wall is x 4 longer than the bottom wall.
Cavitation
Water flow must have
space to "straighten"
itself for best
performance.






The gear leg/ propeller(s) must
never extend out of the tunnel
Optimal tunnel length
Achieving the correct tunnel length depends on many factors from the hull type, operation and environmental conditions.
Tunnels should avoid being longer than 4 x the tunnel diameter as this will reduce thruster performance. (NB: Installing long length tunnels can flex/
bend over time and may require additional support. Consult with a naval architect.)
1. Do not allow the variable length of the tunnel walls to vary in length excessively.
EG. The top tunnel wall is x 4 longer than the bottom wall.
2. If the tunnel is too long, the friction inside will reduce the water speed and thereby the thrust.
3. If the tunnel is too short (typically only in the bottom section of the tunnel) cavitation problems can occur as water flow will not be able to
“straighten” itself before reaching the propeller. This cavitation will reduce performance and increase noise during operation.
Thruster within the tunnel
It is important the propellers and the lower unit/ gear leg must be entirely inside the thruster tunnel. Propellers that protrude from the tunnel will not
perform as intended.
4. Standard Use
Tunnel length must be long enough to ensure the propellers are not extruding the tunnel. (NB: Refer to product measurements to defi ne your
products recommended tunnel length.)
5. Flat Bottom Hull
Tunnel lengths must be longer than the standard measurement outlined within the manual to ensure a circular vacuum is not created between the
thruster and the bottom of the boat.
6. High-Speed Boats
Tunnel lengths must be increased to protect the propeller from damage when crashing against the water surface during high-speed cruising. (NB:
This can include the length of a spoiler)
MC_0003
Tunnel Length
MG_0004
Min
Pos. B
Pos. A

1
1
2
3
4 65
MG_0048
Increase tunnel length to protect
the propeller from water forces
when high-speed cruising.
Water
Forces
Increase tunnel length to
prevent a circular water vacuum
cavity between the propeller and
the hull of the boat.
STANDARD USE FLAT BOTTOM HULL HIGH-SPEED OPERATION
Do not allow the variable length of the tunnel walls to vary in length
excessively.
EG. the top tunnel wall is x 4 longer than the bottom wall.
Cavitation
Water flow must have
space to "straighten"
itself for best
performance.






The gear leg/ propeller(s) must
never extend out of the tunnel
Tunnel installation in Sailboats
Some sail boats have a flat bottom and shallow draft in the bow section. This can make installing the thruster as far forward from the boats main pivot
point diffi cult. (Fig. 1).
However, it is possible to install a tunnel thruster in most sail boats, even when the hull does not directly support the fi tting of a tunnel.
Instead fi t the tunnel halfway into the underneath section of the existing hull. Strengthen it with a deflector/ spoiler directing the water flow around
the tunnel. This will allow installation of the thruster in the proper position on the boat, maintaining the reliability and space advantages of the tunnel
thruster.
This installation is being used by some of the world’s largest sail boat builders and has proven to give little to no speed loss during normal cruising.
This can also be an installation method for flat bottomed barges to avoid extremely long tunnels and large oval tunnel openings in the hull.
MC_0003

10 5996 15 2023
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SAC 240 & SAC 320
MG_0003
High water force
while underway
High water force
while underway
from wave contact
To protect the propeller from water entering into
the tunnel at high speeds (25 knots +) the
extended deflector/ spoiler must provide
protection from the front and the bottom. In the
event when the boat is traveling at high speeds it
will commonly pound upon the water surface.


1 2 3
4
Water Deflection MC_0003
1. A possible problem in sail boats or fast powerboats is that a non-rounded surface can generate drag from the back face of the tunnel, as it creates
a “flat” area facing the flow of water.
This problem can be solved in two different ways, depending on what is possible or easier to perform.
2. The best solution which generally reduces the most drag is to make a recess in the hull at the back of the tunnel. As the back face is removed
water can flow freely past the tunnel entry. The depth and shape of this recess will depend on the boat and the angle facing up/ down aft of the
tunnel insert. Normally it is angled slightly down because of the water flow on this area.
3. Making a deflector/ spoiler in front and underneath the tunnel can also reduce damage to the thruster and drag. The deflector/ spoiler will push
the water flow out from the hull so water can pass by the back face of the tunnel. The shape and size of this deflector/ spoiler will depend on the
hull shape. The easiest way of making the deflector/ spoiler is to retain a part of the lower forward area of the tunnel while installing the tube. Use
this area as support to mould a soft curve/spoiler shape from the hull.
4. The thruster propeller can spin (passively) producing noise while sailing or cruising as water is forced through the tunnel. Water-flow directed
through the tunnel at high speeds, during turning or as the boat bumps waves while underway can also damage the thruster.
(NB: As a rule, you should not see the back face of the tunnel when standing directly in front of the boat looking aft.)

11
5996 15 2023
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SAC 240 & SAC 320
MG_0002
R = 0,1 x D (10%)
D


12
3
Angled tunnel ends for
steel/ aluminium hulls
Cavitation
MG_0003
High water force
while underway
High water force
while underway
from wave contact
To protect the propeller from water entering into
the tunnel at high speeds (25 knots +) the
extended deflector/ spoiler must provide
protection from the front and the bottom. In the
event when the boat is traveling at high speeds it
will commonly pound upon the water surface.


1 2 3
4
Tunnel Ends MC_0003
Rounded tunnel ends will maximise thrust and minimise noise and cavitation.
For best performance round the tunnel connection to the hull-side as much as possible. The minimum rounding has a radius of 10% of the diameter of
the tunnel.
Signifi cant advantages of a rounded tunnel over a sharp tunnel to hull connections are:
1. A rounded tunnel end will prevent the creation of turbulence/ cavitation created from a sharp tunnel end when water passes by the tunnel.
- The turbulence/ cavitation will block the outer area of the tunnel and thereby reduces the effective tunnel diameter and thrust.
- Turbulence/ cavitation on the propeller will lessen the thrusters performance and create excess noise.
2. For steel/ aluminium hulls angled tunnel ends also offer similar performance as a rounded connection.
3. A rounded tunnel end makes the thruster draw water from along the hull-side, creating a vacuum that will suck the boat sideways and thereby give
additional thrust.
- With a sharp tunnel end, the thruster will be unable to take water from along the hull-side, and you will not gain the desired vacuum and
additional thrust. This “free” extra thrust in optimal installations be 30 - 40% of the total thrust.
(NB: A Sleipner thruster propeller does not produce cavitation at working speed. Therefore, any cavitation and cavitation noise in the tunnel will be
caused during improper tunnel installation.)

12 5996 15 2023
-
SAC 240 & SAC 320
MG_0005
R
D
1 2
34
6
5
8 x layers of fiberglass
and resin
8 x layers of fiberglass
and resin
MG_0006
R = D x 0,1
R = D x 0,1
Dx0,1-0,15
Dx0,1-0,15
D
Layers of
fiberglass
and resin
Layers of
fiberglass
and resin
*Fiberglass
Hull
*Steel/
Aluminium
Hull
Hull
Hull
Hull
Tunnel
Tunnel
Tunnel
Welding
Layers of
fiberglass
and resin
Additional Layers of
fiberglass and resin
Additional Layers of
fiberglass and resin
Hull
1 3
4
2
Tunnel Installation
1. Find the position in the boat considering the information earlier in this manual and the applicable measurements for the thruster model you are
installing. Mark the centre of the tunnel on both sides of the hull. Drill a hole horizontally at these marks.
2. Mark the circle for the tunnel opening (outside diameter of the tunnel) and cut the hole.
3. Grind off the gel coat to the “real fi breglass” area 12cm around the hole on both inside and outside the hull to cast the tunnel to the hull (Fig. 3).
4. Insert the tunnel and mark its shape to fi t the hull. (NB: if you are installing with a deflector/ spoiler, leave a part of the tunnel in the front and
underside of the tunnel that will cover the back face.)
5. Cut the tunnel ends to the desired shape and lightly sand its surface. Clean the area with acetone or similar where you are going to apply
fi breglass. (NB: Do not cast or add fi breglass to the area were the thruster will be placed.)
6. Cast the tunnel to the inside of the hull, use at least eight layers of 300g fi breglass and resin, preferably alternating mat and rowing types of
fi breglass. To round the tunnel ends to a 10% radius make further layers inside to preserve the desired hull thickness.
(NB: Ensure gaps between the tunnel and the hull are completely fi lled with resin/ fi breglass. In areas where you can not access to make layers of
resin/ fi breglass, a resin/ fi breglass mixture must be used in that area.)
MC_0003
IMPORTANT
We recommend that a professional does the fi breglass, steel or aluminium fi tting of the tunnel. These instructions are only general instructions and
do not explain in any way the details of fi breglass work. Problems caused by faulty installation of the tunnel, are the installers full responsibility.

13
5996 15 2023
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SAC 240 & SAC 320
MG_0005
R
D
1 2
34
6
5
8 x layers of fiberglass
and resin
8 x layers of fiberglass
and resin
MG_0006
R = D x 0,1
R = D x 0,1
Dx0,1-0,15
Dx0,1-0,15
D
Layers of
fiberglass
and resin
Layers of
fiberglass
and resin
*Fiberglass
Hull
*Steel/
Aluminium
Hull
Hull
Hull
Hull
Tunnel
Tunnel
Tunnel
Welding
Layers of
fiberglass
and resin
Additional Layers of
fiberglass and resin
Additional Layers of
fiberglass and resin
Hull
1 3
4
2
IMPORTANT
Avoid all casting where the motor-bracket is to be placed, as this will cause misfi t and possible failure to the gear house.
Tunnel Installation
With tunnel installed and cast.
1. Round the edges with a radius of 10% of the tunnel diameter.
2. For steel/ aluminium hulls make a slope with a length of 10-15% of the tunnel diameter.
(NB: If this is not possible, round the tunnel end as much as possible.)
3. Additionally cast two layers on the outside of the tunnel/ hull in a 10cm area
4. Follow the same method if making the deflector/ spoiler.
You must apply gel coat to areas you have grounded/ moulded to make waterproof. These areas allow water access to the hull which is typically not
waterproof without these applications outside. (NB: All original Sleipner tunnels are fully waterproof when delivered except in the areas where you
have cut and bonded it to the hull.)
MC_0003

14 5996 15 2023
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SAC 240 & SAC 320
MG_0007
Fig. 1
Fig. 3
Fig. 2
Fig. 4
a1
b
a1
a2
a2
b
a1 a2
dd
c1
c2 c2 c3
d
b
c3 c1
D
Radius
=
D x 0,1
A
a1
b
a1
a2
a2
b
a1 a2
dd
c1
c2 c2 c3
d
b
c3 c1
MG_0008
Fig. 4
Center line
Motor bedding
B
A
C
D
mm inch mm inch mm inch mm inch
SAC240/250
SAC320/300 140 5.5 216 8.5 12 0.47 132 5.2
SAC360/300
SAC400/300 210 8.3 254 10 14.5 0.57 160 6.3
SAC450/386
SAC520/386
SAC700/412
241 9.5 279 10.98 15 0.59 180 7.09
SAC750/513 305 12 318 12.52 18.5 0.73 200 7.87
SAC900/513 286 11.26 356 14 19 0.74 225 8.8
SAC950/610 311 12.24 356 14 19 0.74 225 8.8
SAC1100/513-I-4-H
SAC1100/513-I-4-V
SAC1100/513-I-4L-H
SAC1100/513-I-4L-V
286 11.26 356 14 19 0.74 225 8.8
SAC1100/513-C-4-H
SAC1100/513-C-4-V
SAC1100/513-C-4L-H
SAC1100/513-C-4L-V
SAC1100/610-I-4-H
SAC1100/610-I-4-V
349 13.74 406 16 24 0.94 250 9.8
SAC1300/610
SAC1400/610 368 14.49 457 18 24 0.94 280 11
Models
A
B
ØC
D
Measurements
Fig. 3
Fig. 2
Fig. 1
Supporting the thruster
Vertical or Horizontal Thruster Installation
Consult a naval architect if added support is required for the tunnel at its deepest point to the hull as suggested in (fi g. 1 & 2).
The motor must be mounted on separate bedding placed according to (fi g. 3). The bedding must be rigid and dimensioned to support the weight and
torque specifi ed in the technical data of the product.
The bedding must be in the correct height so that the angle of the cardan shaft does not exceed +/- 1.5 degrees (fi g. 4).
Reference the distance from the centreline of the tunnel to the top of the bedding for the specifi c thruster/ motor combination. Ensure that the bed-
ding is parallel to the centreline by checking the distance in both ends of the bedding.
Mounting holes in the bedding should be drilled according to measurements for the specifi c thruster/ motor model.
MC_0003
MC_0003
MG_0712
IMPORTANT
Flange must be used for motor
support in vertical installations
WARNING
DO NOT use the motor feet for
support in vertical installations

15
5996 15 2023
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SAC 240 & SAC 320
MG_0007
Fig. 1
Fig. 3
Fig. 2
Fig. 4
a1
b
a1
a2
a2
b
a1 a2
dd
c1
c2 c2 c3
d
b
c3 c1
D
Radius
=
D x 0,1
A
a1
b
a1
a2
a2
b
a1 a2
dd
c1
c2 c2 c3
d
b
c3 c1
MG_0008
Fig. 4
Center line
Motor bedding
B
A
C
D
mm inch mm inch mm inch mm inch
SAC240/250
SAC320/300 140 5.5 216 8.5 12 0.47 132 5.2
SAC360/300
SAC400/300 210 8.3 254 10 14.5 0.57 160 6.3
SAC450/386
SAC520/386
SAC700/412
241 9.5 279 10.98 15 0.59 180 7.09
SAC750/513 305 12 318 12.52 18.5 0.73 200 7.87
SAC900/513 286 11.26 356 14 19 0.74 225 8.8
SAC950/610 311 12.24 356 14 19 0.74 225 8.8
SAC1100/513-I-4-H
SAC1100/513-I-4-V
SAC1100/513-I-4L-H
SAC1100/513-I-4L-V
286 11.26 356 14 19 0.74 225 8.8
SAC1100/513-C-4-H
SAC1100/513-C-4-V
SAC1100/513-C-4L-H
SAC1100/513-C-4L-V
SAC1100/610-I-4-H
SAC1100/610-I-4-V
349 13.74 406 16 24 0.94 250 9.8
SAC1300/610
SAC1400/610 368 14.49 457 18 24 0.94 280 11
Models
A
B
ØC
D
Measurements
Fig. 3
Fig. 2
Fig. 1
Supporting the thruster
Vertical or Horizontal Thruster Installation
Consult a naval architect if added support is required for the tunnel at its deepest point to the hull as suggested in (fi g. 1 & 2).
The motor must be mounted on separate bedding placed according to (fi g. 3). The bedding must be rigid and dimensioned to support the weight and
torque specifi ed in the technical data of the product.
The bedding must be in the correct height so that the angle of the cardan shaft does not exceed +/- 1.5 degrees (fi g. 4).
Reference the distance from the centreline of the tunnel to the top of the bedding for the specifi c thruster/ motor combination. Ensure that the bed-
ding is parallel to the centreline by checking the distance in both ends of the bedding.
Mounting holes in the bedding should be drilled according to measurements for the specifi c thruster/ motor model.
MC_0003
MC_0003
MG_0712
IMPORTANT
Flange must be used for motor
support in vertical installations
WARNING
DO NOT use the motor feet for
support in vertical installations
For Stern Thruster installation please refer to the supplied manual in your Sleipner product delivery
Stern Thruster
SLEIPNER AS
P.O. Box 519
N-1612 Fredrikstad
Norway
www.sleipnergroup.com
DOCUMENT ID:
REVISION:
DATE:
LANGUAGE:
Installation Guide
For DC Electric Thruster Models
SE80, SE100, SE120, SE130, SE150
EN
I M
222222
1
2018
Stern Tunnel Installation MC_0003
For supporting stern tunnel installation documentation, we advise you to visit our
website www.sleipnergroup.com and fi nd your Sleipner stern tunnel model.

16 5996 15 2023
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SAC 240 & SAC 320
MC_0001
Gear Leg & Motor Bracket Installation
!Please refer to the graphic for special considerations relating to your model !
1. Mark the tunnel centreline and the boat’s centreline. (NB: Install the gear leg and propeller as shown for the thrust direction to correspond with
the control panel. Position gear leg with the P-mark facing port and the S-mark facing starboard.)
2. Use the gasket or template (recommended) to mark the hole centres and double-check the measurements. The centre hole MUST be placed using
the boat centreline as shown. (NB: All holes must be in-line with the tunnels’ centreline for correct installation, clearance between the propeller
and the tunnel is minimal.)
3. Drill the main centre hole followed by the two screw-holes.
4. Smooth the surface of the tunnel. A rough surface will cause possible failure/movement of the gear leg. The motor bracket must rest steadily on
the tunnel.
MC_0001
Gear Leg & Motor Bracket Installation
!Please refer to the graphic for special considerations relating to your model !
5. Place the gear leg (without the propeller) with the gasket on inside the tunnel.
6. Place the propeller on the gear leg (NB: Do not secure the propeller with securing parts) to ensure it is centred and rotates freely with the same
clearance from each blade to the tunnel wall.
7. Place top motor bracket and bolt plate to measure the drive shaft has come through the motor bracket at the correct height. Remove the gear leg
and propeller for fi nal installation.
MG_0055
mm inch mm inch mm inch
SE/SEP/SE IP/SEP IP 80/185T
SE/SEP/SE IP/SEP IP 100/185T
E100/185T
SH100/185T
32 1.3 28 1.1 9 0.4
SE/SEP/SE IP/SEP IP 120/215T
SE/SEP/SE IP/SEP IP 130/250T
SE/SEP/SE IP/SEP IP 170/250TC
SE/SEP/SE IP/SEP IP 210/250TC
E130/250T
E150/215T
E170/250TC
E210/250TC
SH160/215T
SH240/250TC
SAC 240/250TC
46 1.8 40 1.6 11 0.4
SE/SEP/SE IP/SEP IP 250/300TC
SE/SEP/SE IP/SEP IP 300/300TC
E300/300TC
E250/300TC
SH300/300TC
SH320/300TC
SAC320/300TC
51 2 48 1.9 11 0.4
SH360/300TC
SH400/300TC
SAC360/300TC
SAC400/300TC
67 2.6 48 1.9 11 0.4
SH420/386TC
SH550/386TC
SH700/412
SAC450/386TC
SAC520/386TC
SAC700/412
83 3.3 70 2.8 17 0.7
Models
Measurements
ØA B ØC
Tunnel
centre line
Tunnel
centre line
Drill centre hole first
Smooth surface area
Boats
centre line
Boats
centre line
Bow
Stern
B
ØC
ØA
BOW
12
3 4
STARBOARDPORT
BOW
PORT STARBOARD
S
P

17
5996 15 2023
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SAC 240 & SAC 320
MC_0001
Gear Leg & Motor Bracket Installation
!Please refer to the graphic for special considerations relating to your model !
5. Place the gear leg (without the propeller) with the gasket on inside the tunnel.
6. Place the propeller on the gear leg (NB: Do not secure the propeller with securing parts) to ensure it is centred and rotates freely with the same
clearance from each blade to the tunnel wall.
7. Place top motor bracket and bolt plate to measure the drive shaft has come through the motor bracket at the correct height. Remove the gear leg
and propeller for fi nal installation.
MG_0622
Gasket
Gear leg Test the propeller turns without
obstruction with tunnel wall
Motor bracket
5
6
7
BOW
BOW
Bolt plate

18 5996 15 2023
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SAC 240 & SAC 320
Propeller Installation MC_0264
!Please refer to the graphic for special considerations relating to your model !
1. Centre the drive pin and insert the propeller onto the shaft spline. Rotate the propeller until the drive pin aligns with the internal slot in the
propeller.
2. Insert the washer to the end of the shaft spline. Tighten with the propeller lock-nut.
3. Insert the anode to the end of the propeller and tighten the anode holding screw. Apply a thread glue (Loctite 243 or similar) to ensure that the
anode holding screw does not unscrew itself from during the rotation of the propeller.
4. Apply anti-fouling to the gear leg and propeller. Do not apply anti-fouling to any rubber elements of the gear leg or anodes.
IMPORTANT
For twin counter-rotating gear legs, propellers are marked with P (Port) and S (starboard) and must be installed appropriately.
MC_0001
Gear Leg & Motor Bracket Installation
!Please refer to the graphic for special considerations relating to your model !
8. Apply appropriate sealant to both sides of the gasket and place on the gear leg. Place the gear leg in the tunnel (without the propeller). Use
appropriate sealant to ensure that no leakages occur. (NB: See your sealant data sheet for the correct application process.)
9. Install the top motor bracket and gear leg gently together.
10. Fasten the gear leg and the motor bracket with the bolts provided. Tighten to torque as shown.
MG_0621
Bolt plate
BOW
Apply MS Polymer sealant
or equal to both sides of
the gasket
IMPORTANT
Do not apply sealant to
the bolt holes.
8
BOW
Motor bracket
9
10
BOW
FASTEN
33 Nm
24 lb/ft
Tunnel Diameter
Nm lb/ft
33 24
/300mm
Fasten

19
5996 15 2023
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SAC 240 & SAC 320
MG_0033
Drive Pin
Propeller
Washer
Lock Nut
FASTEN
20 Nm
14.75 lb/ft
Anode
Anode Holding
Screw
Apply Loctite 243 or similar
Anti-fouling
LH
Port
Find the propeller
hand marking on the
back side of the
propeller mould.
Starboard
RH
LH
Propeller Installation MC_0264
!Please refer to the graphic for special considerations relating to your model !
1. Centre the drive pin and insert the propeller onto the shaft spline. Rotate the propeller until the drive pin aligns with the internal slot in the
propeller.
2. Insert the washer to the end of the shaft spline. Tighten with the propeller lock-nut.
3. Insert the anode to the end of the propeller and tighten the anode holding screw. Apply a thread glue (Loctite 243 or similar) to ensure that the
anode holding screw does not unscrew itself from during the rotation of the propeller.
4. Apply anti-fouling to the gear leg and propeller. Do not apply anti-fouling to any rubber elements of the gear leg or anodes.
IMPORTANT
For twin counter-rotating gear legs, propellers are marked with P (Port) and S (starboard) and must be installed appropriately.
MG_0621
Bolt plate
BOW
Apply MS Polymer sealant
or equal to both sides of
the gasket
IMPORTANT
Do not apply sealant to
the bolt holes.
8
BOW
Motor bracket
9
10
BOW
FASTEN
33 Nm
24 lb/ft
Tunnel Diameter
Nm lb/ft
33 24
/300mm
Fasten

20 5996 15 2023
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SAC 240 & SAC 320
Coupling Installation
Parts must be aligned with precision to ensure the longevity and effectiveness of the coupling, consider the combination of axial, radial and angular
misalignment.
Centa has applied retention Inbus Plus all glue to all bolts. (NB: The glue will harden within 4-5 hours at 20˚C.) Additional use of any
loctite or anaerobic adhesives will destroy the natural vulcanisation of the rubber. Do not use oil or grease on bolts except a small amount of grease at
the contact areas between bolt heads and rubber element bushings. Grease will avoid the twisting of the rubber element during bolt fastening.
1. Insert the flange hub on AC motor shaft and gear leg shaft. (NB: Insert the Gear leg shaft flange hub against the limit stop/ shaft shoulder. )
Insert the AC motor shaft flange hub according to hub depth.)
2. Install the AC motor after you have lined up according to tolerances given in the provided table.
3. Insert the drive shaft inside the rubber elements. Insert radial bolts into radial sections of the rubber elements, and fasten 2-3 threads only into
the drive shaft.
MC_0027
IMPORTANT
Only use original bolts delivered with the Sleipner thruster. Also, avoid contact between the AC motor shaft and the coupling drive shaft.
MG_0635
3
1
2
Fasten 2-3
threads only
IMPORTANT
Shims may be needed to avoid misalignment when tightening the
motor bolts. Misalignment can cause the motor bracket to break. The
motor must be fitted completely level to the drive shaft
Flange hub
Shims
IMPORTANT
Shims may be needed to avoid misalignment when tightening the
motor bolts. Misalignment can cause the motor bracket to break. The
motor must be fitted completely level to the drive shaft
Bolts
Drive shaft
Flange
Radial bolts
Radial bolts
Drive
shaft
Flange
Flange
L + KA
KW