SLEIPNER MOTOR AS SIDE-POWER SX35 Manual

SLEIPNER MOTOR AS
P.O. Box 519
N-1612 Fredrikstad
Norway
www.sleipnergroup.com
DOCUMENT ID:
REVISION:
DATE:
LANGUAGE:
Installation Guide
For DC External Electric Thruster Models
SX35, SX50
EN
I M
5630
23
2022

25630 23 2022
-
SX35 & SX50
Sleipner Motor AS
P.O. Box 519, Arne Svendsensgt. 6-8
N-1612 Fredrikstad, Norway
MC_0020
Contents
Products
SM908124 | SX35/140-12V-50MM - SX35/140 -12V -50mm w/Controller
SM908123 | SX35/140-12V-150MM - SX35/140 - 12V -150mmw/Controller
SM908125 | SX35/140-12V-OEM02 - SX35/140 - 12V -OEM02 w/Controller
SM908126 | SX50/140-12V-150MM - SX50/140 - 12V-150mm w/Controller
SM908127 | SX50/140-12V-50MM - SX50/140 - 12V -50mm w/Controller
Installation Manual
Responsibility of the Installer................................................................................................................................................................... 3
General Installation Considerations and Precautions Guidelines ........................................................................................................... 3
Product Measurements .................................................................................................................................................................... 4 - 5
Product Specications............................................................................................................................................................................ 6
Galvanic Isolation ................................................................................................................................................................................... 6
Positioning the Stern SX Thruster .......................................................................................................................................................... 7
Guide for Stern Thruster Cowls or Grids ................................................................................................................................................ 8
Tunnel Installation .................................................................................................................................................................................. 9
SX Spacer ............................................................................................................................................................................................ 10
Motor Installation ........................................................................................................................................................................... 11 - 12
Propeller Installation............................................................................................................................................................................. 13
Grids or Cowls assembly...................................................................................................................................................................... 14
Electrical Installation............................................................................................................................................................................. 15
Control Box Installation.................................................................................................................................................................. 16 - 17
Visual Wiring Diagram........................................................................................................................................................................... 18
Control Panel Installation ..................................................................................................................................................................... 19
Pre-delivery Checklist ....................................................................................................................................................................... 20
Service and Support........................................................................................................................................................................... 21
Product Spare Parts and Additional Resources.............................................................................................................................. 21
Warranty Statement............................................................................................................................................................................ 21
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.
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.
• We advise painting the gear house and propellers with anti-fouling. (NB: Do not paint the anodes, 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.
MC_0440
General Installation Considerations and Precautions Guidelines
MC_0427
For SX/P35 and SX/P50 thruster systems
• Ensure that the external thruster assembly does not disturb the water flow under the hull. At higher speeds, if the thruster is installed to
low it can cause damage to the thruster and/ or add additional drag and unwanted water splashing.
• The minimum tunnel depth from the water surface is 140mm (5,51‘) to the centre of tunnel diameter. Place the Thruster as deep as possible for
better performance and reduced noise.
• When installing the thruster ensure it does not foul existing equipment inside the boat like motor bedding etc.
• If able ensure that stern-drives/ trim-tabs do not interfere with the water flow from the thruster as this can reduce the thrust effectiveness
considerably. We recommend the use of our Sleipner cowls to enhance the performance and allow installation in shallow draft boats. Sleipner
cowls will also minimise the effect if stern-drives/ trim-tabs obstruct the thruster.
• Ensure there is enough space both inside and outside the transom of the boat and the thruster does not get in conflict with existing equipment
inside the boat like steerage links etc. (NB: It is possible to mount the tunnel offset from the boat’s centre line if necessary.)
• Heat protection cut off is calculated from the thruster motor. To avoid cable overheating do not install place the volt cables from the thruster to the
control box near any heat sources. (NB: excluding SXP thrusters)
• 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 electro motor, components and cables must be mounted so they remain dry at all times.
• Do not use abrasive tools damaging the existing Epoxy coating when preparing for antifouling paint.

3
5630 23 2022
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SX35 & SX50
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.
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.
• We advise painting the gear house and propellers with anti-fouling. (NB: Do not paint the anodes, 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.
MC_0440
General Installation Considerations and Precautions Guidelines
NEVER Disassemble any part of the Ignition Protected assembly. Tampering with the Ignition Protected assembly will cause it to lose this
safety feature. If there is a problem with your Ignition Protected motor, please contact your dealer.
MC_0007
MC_0427
For SX/P35 and SX/P50 thruster systems
• Ensure that the external thruster assembly does not disturb the water flow under the hull. At higher speeds, if the thruster is installed to
low it can cause damage to the thruster and/ or add additional drag and unwanted water splashing.
• The minimum tunnel depth from the water surface is 140mm (5,51‘) to the centre of tunnel diameter. Place the Thruster as deep as possible for
better performance and reduced noise.
• When installing the thruster ensure it does not foul existing equipment inside the boat like motor bedding etc.
• If able ensure that stern-drives/ trim-tabs do not interfere with the water flow from the thruster as this can reduce the thrust effectiveness
considerably. We recommend the use of our Sleipner cowls to enhance the performance and allow installation in shallow draft boats. Sleipner
cowls will also minimise the effect if stern-drives/ trim-tabs obstruct the thruster.
• Ensure there is enough space both inside and outside the transom of the boat and the thruster does not get in conflict with existing equipment
inside the boat like steerage links etc. (NB: It is possible to mount the tunnel offset from the boat’s centre line if necessary.)
• Heat protection cut off is calculated from the thruster motor. To avoid cable overheating do not install place the volt cables from the thruster to the
control box near any heat sources. (NB: excluding SXP thrusters)
• 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 electro motor, components and cables must be mounted so they remain dry at all times.
• Do not use abrasive tools damaging the existing Epoxy coating when preparing for antifouling paint.

45630 23 2022
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SX35 & SX50
MG_0110
H
WL
(a)
(b)
(e)
(c)
(d)
(f)
(g)
* Extended tube for
thicker hull models
(Hull thickness >50mm to <150mm)
* Standard tube
(Hull thickness <50mm)
MC_0239
Product Measurements
Measurement
code Measurement description mm inch
H Motor Height 374 14.72
W Width 183 7.20
L Length 171 6.7
(a) Standard tube length 171 6.7
(b) Extended tube length for thicker hulls 276 10.9
(c) Main tube diameter 50 2
(d) Support bolts diameter 18 0.7
(e) Height of support bolts from tube 35.8 1.4
(f) Distance of support bolts from tube 65 2.6
(g) Distance of support bolts 130 5.1
MG_0132
121 mm
4’76”
187 mm
7’36”
170 mm
6’69”
136 mm 5’35”
110 mm 4’33”
Product Measurements

5
5630 23 2022
-
SX35 & SX50
MG_0110
H
WL
(a)
(b)
(e)
(c)
(d)
(f)
(g)
* Extended tube for
thicker hull models
(Hull thickness >50mm to <150mm)
* Standard tube
(Hull thickness <50mm)
MC_0239
Product Measurements
Measurement
code Measurement description mm inch
H Motor Height 374 14.72
W Width 183 7.20
L Length 171 6.7
(a) Standard tube length 171 6.7
(b) Extended tube length for thicker hulls 276 10.9
(c) Main tube diameter 50 2
(d) Support bolts diameter 18 0.7
(e) Height of support bolts from tube 35.8 1.4
(f) Distance of support bolts from tube 65 2.6
(g) Distance of support bolts 130 5.1
MG_0132
121 mm
4’76”
187 mm
7’36”
170 mm
6’69”
136 mm 5’35”
110 mm 4’33”
Product Measurements

65630 23 2022
-
SX35 & SX50
MC_0149
Product Specifi cations
Description SX35
SXP35
SX50
SXP50
Nominal Voltage 12V 12V
Thrust 12V 43 kg / 94 lbs 62 kg / 136 lbs
Thrust 10.5V 35 kg / 77 lbs 50 kg / 110 lbs
Maximum Operation Time S2 motor at 2 - 3 min. duty cycle at 20°c (ambient temperature) S2 motor at 2 - 3 min. duty cycle at 20°c (ambient temperature)
Power 1.8kw / 2hp 2.8kw / 3.75hp
Weight 15.3 kg / 33.73 lbs 15.3 kg / 33.73 lbs
Product SX35
SXP35
SX50
SXP50
Nominal voltage 12V 12V
Max current 250A 380A
Motor duty cycle Short time duty (S2) Short time duty (S2)
Max ambient temp 50ºc 50ºc
Min ambient temp -25ºc -25ºc
Cross section power cables 35 - 70mm² 2.8kw * 3.75hp
SX/P Thruster
SX/P Control Box
Galvanic Isolation MC_0483
The SX models are produced with a seawater resistant aluminium frame. Without galvanic isolation from other electrical sources the SX seawater
resistant aluminium frame will act as an anode on the vessel. This will add considerable corrosion to the SX thruster frame.
WARRING
IF installing on any metal surface with contact to the SX seawater resistant aluminium frame (vessel hull, supports or frames) the SX thruster
must include a galvanic isolation solution.
MG_0565
Metal hull, support or
frame for mounting the
SX thruster
Galvanic isolation will
prevent any current flow
to the SX thruster
Material to isolate the
contact area of the two
surfaces
SX seawater resistant
aluminium frame

7
5630 23 2022
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SX35 & SX50
MC_0072
Positioning the Stern SX Thruster
For best performance, the thruster must be installed as deep on the stern as possible but not disturb the natural water flow dynamic of the hull as the
vessel travels.
The thruster should be installed as deep under the waterline as possible for two reasons:
1. So it does not suck air from the surface which will reduce performance and increase noise levels.
2. To receive maximum effi ciency in turning force.
The thruster must be installed to ensure the propulsion water flow must not be obstructed by other objects. Objects that obstruct the water flow from
the thruster will greatly reduce the thrust output.
Position
The thruster can be installed in multiple locations on the boat transom. Installing the thruster slightly off centre will not affect the overall effectiveness
of the thruster. Installing the thruster off centre may be required to avoid any obstructions externally or internally on the vessel.
Ensure that the external stern thruster assembly does not disturb the water flow under the hull. At higher speeds, if the thruster is installed to low can
cause damage to the thruster, additional drag and unwanted water splashing.
Alignment
The thruster can be installed at a slight angle if required for the water flow to avoid obstructions. These obstructions can include propellers systems,
trim tabs or the hull. The average force the thruster propels water is 5-7 meters per sec, therefore angled installations must be as deep as possible
under the water to minimise spray breaking beyond the water surface. (NB: install the thruster at an angle only if no other suitable location can be
found.)
MG_0109
Thruster tunnel is
clear from obstruction.
Ensure the attachment bolts and
wiring are not obstructing objects
internally in the boat such as
steering legs or motors
Steering Arm
Installing the thruster at an angle
close to the water line will blast
water beyond the water surface.
Do not install the SX thruster inverted
or at an angle over a reasonable level
to deliver appropriate thrust
Engine
The thruster can be installed in multiple
locations based on object obstructions
on the stern.









Engine
Water line Water line
Water line
Engine
Engine
Thruster assembly does not disturb
the water flow under the hull.
Water flow


MC_0149
Product Specifi cations
Description SX35
SXP35
SX50
SXP50
Nominal Voltage 12V 12V
Thrust 12V 43 kg / 94 lbs 62 kg / 136 lbs
Thrust 10.5V 35 kg / 77 lbs 50 kg / 110 lbs
Maximum Operation Time S2 motor at 2 - 3 min. duty cycle at 20°c (ambient temperature) S2 motor at 2 - 3 min. duty cycle at 20°c (ambient temperature)
Power 1.8kw / 2hp 2.8kw / 3.75hp
Weight 15.3 kg / 33.73 lbs 15.3 kg / 33.73 lbs
Product SX35
SXP35
SX50
SXP50
Nominal voltage 12V 12V
Max current 250A 380A
Motor duty cycle Short time duty (S2) Short time duty (S2)
Max ambient temp 50ºc 50ºc
Min ambient temp -25ºc -25ºc
Cross section power cables 35 - 70mm² 2.8kw * 3.75hp
SX/P Thruster
SX/P Control Box
Galvanic Isolation MC_0483
The SX models are produced with a seawater resistant aluminium frame. Without galvanic isolation from other electrical sources the SX seawater
resistant aluminium frame will act as an anode on the vessel. This will add considerable corrosion to the SX thruster frame.
WARRING
IF installing on any metal surface with contact to the SX seawater resistant aluminium frame (vessel hull, supports or frames) the SX thruster
must include a galvanic isolation solution.
MG_0565
Metal hull, support or
frame for mounting the
SX thruster
Galvanic isolation will
prevent any current flow
to the SX thruster
Material to isolate the
contact area of the two
surfaces
SX seawater resistant
aluminium frame

85630 23 2022
-
SX35 & SX50
MC_0072
Guide for Stern Thruster Cowls or Grids
Installing a stern thruster cowl for stern thrusters that will allow installations in boats with shallow drafts or due to other obstructions on the stern.
These can include obstacles such as trim tabs, jets or surface drive propeller systems where shallow installation of a stern thruster is the only option.
Cowls:
Designed to aid in water redirection and reduce air entering the tunnel in shallow installations.
Grid’s:
Designed to protect the thruster from objects while in use.
MG_0017
Shallow installation
Cowl water flow redirection
An angled edge further
preventing air attraction into
the tunnel
Composite material with smooth
inner walls for optimal water flow
and strength
A standard Sidepower stern
thruster tunnel with add-on cowls
for shallow installation
cowls to change the
water flow direction to
avoid obstructions on
the stern
cowls help prevent air
from the water surface
entering the tunnel in
shallow installations
Radius corners prevent
turbulence
Easy installation for easy
bolt-on fitting
A
B
C
D
IMPORTANT
Angled cowls out of horizontal, must be
installed deeper to avoid air entry in the
thruster tunnel
Model # 90126 90080 90077 90136 90130 90220 90560
A (mm/ in) 528/ 20.8 681/ 26.6 823/ 32.4 850/ 33.5 1010/ 39.75 1208/ 47.6 1580/ 62.2
B (mm/ in) 166/ 6.5 172/ 6.8 243/ 9.6 260/ 10.2 330/ 13 393/ 15.5 515/ 20.3
C (mm/ in) 130/ 5.1 240/ 9.4
D (mm/ i n) 170/ 6.7 256/ 10.1 256/ 10.1 288/ 11.3 340/ 13.4 419/ 16.5 540/ 21.3
100mm
177mm
537mm
174mm

9
5630 23 2022
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SX35 & SX50
MC_0072
Guide for Stern Thruster Cowls or Grids
Installing a stern thruster cowl for stern thrusters that will allow installations in boats with shallow drafts or due to other obstructions on the stern.
These can include obstacles such as trim tabs, jets or surface drive propeller systems where shallow installation of a stern thruster is the only option.
Cowls:
Designed to aid in water redirection and reduce air entering the tunnel in shallow installations.
Grid’s:
Designed to protect the thruster from objects while in use.
MG_0017
Shallow installation
Cowl water flow redirection
An angled edge further
preventing air attraction into
the tunnel
Composite material with smooth
inner walls for optimal water flow
and strength
A standard Sidepower stern
thruster tunnel with add-on cowls
for shallow installation
cowls to change the
water flow direction to
avoid obstructions on
the stern
cowls help prevent air
from the water surface
entering the tunnel in
shallow installations
Radius corners prevent
turbulence
Easy installation for easy
bolt-on fitting
A
B
C
D
IMPORTANT
Angled cowls out of horizontal, must be
installed deeper to avoid air entry in the
thruster tunnel
Model # 90126 90080 90077 90136 90130 90220 90560
A (mm/ in) 528/ 20.8 681/ 26.6 823/ 32.4 850/ 33.5 1010/ 39.75 1208/ 47.6 1580/ 62.2
B (mm/ in) 166/ 6.5 172/ 6.8 243/ 9.6 260/ 10.2 330/ 13 393/ 15.5 515/ 20.3
C (mm/ in) 130/ 5.1 240/ 9.4
D (mm/ i n) 170/ 6.7 256/ 10.1 256/ 10.1 288/ 11.3 340/ 13.4 419/ 16.5 540/ 21.3
100mm
177mm
537mm
174mm
MG_0112
Push two tunnel
ends together.
Check snap lock
positions around the
tunnel.
Snap lock
Ensure top lips tabs
into the motor
inserts.
1
Tunnel Installation
1. Connect both ends of the tunnel to the thruster motor. All hooks must be completely interlocked making the inside of the tunnel smooth. (NB:
Ensure tunnel moulding around the gear leg and tunnel top align.)
MC_0074
IMPORTANT
Ensure all snap-lock positions are correctly connected into place.

10 5630 23 2022
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SX35 & SX50
MG_0262
Hull
Hull
12mm
Spacer
Apply MS Polymer sealant or
equal to back surface face
50mm
Spacer
Drill
8.5 / 9 mm
Drill
8.5 / 9 mm
4 65 IMPORTANT
The spacer and hull have different hole
diameters for the support bolts. This is to
allow the compression rings to be inserted
into the hull only.
The spacer and hull for the main tube have
the same hole diameter so compression
rings can be inserted for the total length of
the hole.
Compression
ring
Compression
ring
SX Spacer
Follow the installation of the SX thruster in the Motor Installation to step 3. see next page
1. Defi ne the location to install the thruster. (NB: Ensure the thruster does not protrude past the transom profi le on any side and there is no
obstruction to the thrusters water flow. Also, check internally the thruster will not obstruct any objects.)
2. Mark the locations of the three drill holes using the defi ned measurements in this manual or from a template. (NB: Maximum hull thickness is
50mm including optional spacer or 150mm for extended hull thickness models.)
3. Drill main hole, then two support bolt holes. Clean the area from dust for installation of the thruster. (NB: Hull holes must be drilled fi rst before
attaching the spacer as the top support holes are larger than the spacers.)
---------
4. Drill out the two support bolt holes in the spacer.
5. Apply MS Polymer sealant or equal to the back surface face of the spacer.
6. Place the spacer to the hull.
Continue the installation of the SX thruster from step 4 in the Motor Installation.
MC_0074
IMPORTANT
If using the 50mm spacer ensure you have the extended tube SX model.
MG_0113
130 mm
5,12”
65 mm
2,56”
35,80 mm
1,41”
50 mm
1,97”
Drill holes in hull
Control box
installation location
SX cable leads
Hole size
for hull
18 mm
0,71”
All rings need
+10% Compression
Nut and Washer
Hull thickness
Maximum hull thickness
is 50 mm or 150mm
1
4
5
2 3
Ensure SX thruster drilling holes do not
obstruct internal boat frame/ supports
Approximate the
location of the
control box.
Max 0.75m

11
5630 23 2022
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SX35 & SX50
MG_0262
Hull
Hull
12mm
Spacer
Apply MS Polymer sealant or
equal to back surface face
50mm
Spacer
Drill
8.5 / 9 mm
Drill
8.5 / 9 mm
4 65 IMPORTANT
The spacer and hull have different hole
diameters for the support bolts. This is to
allow the compression rings to be inserted
into the hull only.
The spacer and hull for the main tube have
the same hole diameter so compression
rings can be inserted for the total length of
the hole.
Compression
ring
Compression
ring
SX Spacer
Follow the installation of the SX thruster in the Motor Installation to step 3. see next page
1. Defi ne the location to install the thruster. (NB: Ensure the thruster does not protrude past the transom profi le on any side and there is no
obstruction to the thrusters water flow. Also, check internally the thruster will not obstruct any objects.)
2. Mark the locations of the three drill holes using the defi ned measurements in this manual or from a template. (NB: Maximum hull thickness is
50mm including optional spacer or 150mm for extended hull thickness models.)
3. Drill main hole, then two support bolt holes. Clean the area from dust for installation of the thruster. (NB: Hull holes must be drilled fi rst before
attaching the spacer as the top support holes are larger than the spacers.)
---------
4. Drill out the two support bolt holes in the spacer.
5. Apply MS Polymer sealant or equal to the back surface face of the spacer.
6. Place the spacer to the hull.
Continue the installation of the SX thruster from step 4 in the Motor Installation.
MC_0074
IMPORTANT
If using the 50mm spacer ensure you have the extended tube SX model.
MG_0113
130 mm
5,12”
65 mm
2,56”
35,80 mm
1,41”
50 mm
1,97”
Drill holes in hull
Control box
installation location
SX cable leads
Hole size
for hull
18 mm
0,71”
All rings need
+10% Compression
Nut and Washer
Hull thickness
Maximum hull thickness
is 50 mm or 150mm
1
4
5
2 3
Ensure SX thruster drilling holes do not
obstruct internal boat frame/ supports
Approximate the
location of the
control box.
Max 0.75m
Motor Installation
1. Defi ne the location to install the thruster. (NB: Ensure the thruster does not protrude past the transom profi le on any side and there is no
obstruction to the thrusters water flow. Also, check internally the thruster will not obstruct any objects. Ensure cables internally do not obstruct
any objects. Do not place cables or control box close to high heat radiating parts EG. Turbo/ exhaust manifolds etc.) Roughly estimate the
location of the control box inside the vessel. Plan for the control box to be installed above the waterline.
2. Mark the locations of the three drill holes using the defi ned measurements in this manual or from a template. (NB: Maximum hull thickness is
50mm including optional spacer or 150mm for extended hull thickness models.)
3. Drill main hole, then two support bolt holes. Clean the area from dust for installation of the thruster.
4. Install a bolt and washer to ensure top bolts contact surface area is level with the main tube. Temporally place the thruster through the holes to
ensure correct fi tting. Using the cable leads from the thruster defi ne the fi nial location within the vessel for the installation of the control box.
(NB: If using a spacer the support bolt and washer are not required.)
5. Check the length of the compression rings. Compression rings must be longer than hull thickness to allow for compression (NB: Cut compression
sealants to length top achieve 10% compression.)
MC_0074
Before installations all aluminium parts of the thruster must be coated with an epoxy primer before antifouling process.

12 5630 23 2022
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SX35 & SX50
MG_0504
6 7
8 9
Sealant (MS Polymer)
Thruster and attachment bolts
Drill holes
in hull
SX surface area
on the outer hull
Cover the
entire surface
Motor Installation
6. The thruster assembly must sit flush on the transom. Grind and sand the area if required to ensure a secure fi t. (NB: Use caution when grinding/
sanding surfaces as to not remove too much fi breglass.)
7. Ensure both bolts and washers to the support bars on the thruster are attached.
Prepare surface according to sealant supplier specifi cation:
- the inside surface of the cut-out holes on the hull.
-To the surface of the washer to the thread and
- in the recess of the main tube to the thread.
- 1cm deep inside all compression ring.
place all compression rings to bolt threads. (NB: Ensure ample sealant (MS Polymer) around the bolts and centre tube for a watertight fi tting.)
8. Insert the thruster with compression rings into the hole.
9. Fasten the thruster
MC_0074

13
5630 23 2022
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SX35 & SX50
MG_0504
6 7
8 9
Sealant (MS Polymer)
Thruster and attachment bolts
Drill holes
in hull
SX surface area
on the outer hull
Cover the
entire surface
Motor Installation
6. The thruster assembly must sit flush on the transom. Grind and sand the area if required to ensure a secure fi t. (NB: Use caution when grinding/
sanding surfaces as to not remove too much fi breglass.)
7. Ensure both bolts and washers to the support bars on the thruster are attached.
Prepare surface according to sealant supplier specifi cation:
- the inside surface of the cut-out holes on the hull.
-To the surface of the washer to the thread and
- in the recess of the main tube to the thread.
- 1cm deep inside all compression ring.
place all compression rings to bolt threads. (NB: Ensure ample sealant (MS Polymer) around the bolts and centre tube for a watertight fi tting.)
8. Insert the thruster with compression rings into the hole.
9. Fasten the thruster
MC_0074
Propeller Installation
1. Centre the drive pin and Insert the propeller onto the shaft spine. 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. Apply anti fouling to the gear leg and propeller. Do not apply anti fouling to any rubber elements of the gear leg or anodes.
MC_0016
WARNING
Do not use abrasive tools damaging the existing Epoxy coating when preparing for antifouling paint.
MG_0478

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SX35 & SX50
MC_0074
Grids or Cowls assembly
1. Attach the cowls or grids with included bolts. (NB: If installation of the cowls ensure the appropriate twist of the cowl to direct water away from
obstacles)
MG_0145
*Cowl
*Grid
Grids and cowls can not be installed in
combination. Only one option is possible
at a time.
Tighten 2Nm
Correct rotation of the grid/ cowl requires the longer
spaced bolts at the top and the shorter spaced bolts at
the bottom

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SX35 & SX50
MC_0074
Grids or Cowls assembly
1. Attach the cowls or grids with included bolts. (NB: If installation of the cowls ensure the appropriate twist of the cowl to direct water away from
obstacles)
MG_0145
*Cowl
*Grid
Grids and cowls can not be installed in
combination. Only one option is possible
at a time.
Tighten 2Nm
Correct rotation of the grid/ cowl requires the longer
spaced bolts at the top and the shorter spaced bolts at
the bottom
MC_0479
Electrical Installation
WARNING
Check the following with the main switch is 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 flange and the positive terminal on the motor
2. electro-motor flange and the battery negative terminal on the motor
(If unsure contact skilled personnel.)
1. Plan the location of all electrical components before starting with the electrical installation. Main electrical components will typically consist of
battery, fuse, main switch, Proportional Power Controller (PPC) and Control Box, see Wiring Diagram chapter for an overview.
For safety reasons it is always recommended to install a fuse and a main switch on the power cable and as close as possible to the positive battery
pole. Distance between battery and fuse should be less than 1 meter. The main switch must be installed such that is easily accessible to disconnect
the thruster when not on-board or in the case of an emergency. Sleipner offers both manual main switches and Automatic Main Switches (AMS).
Sleipner AMS is controlled by the control panel in addition to the option of manual operation. Turning on the control panel does also turn on the
automatic main switch. When the control panel is turned off the automatic main switch is also turned off. This ensures that the control electronics
and motor is only energized when the control panel is turned on. Sleipner offers AMS supporting either S-Link or ON/OFF control panels. Ensure to
select a main switch with voltage and current ratings according to the specifi cations of the chosen thruster motor. Note that the AMS requires separate
power supply which should be protected by a dedicated fuse.
For installations which requires ignition protected equipment ensure to use ignition protected fuse and main switch. Ensure to follow your national
regulations.
2. Estimate the total length of the power cables to determine the recommended cross section. The total power cable length is defi ned as the
distances from the positive battery pole, via fuse, main switch and PPC to the Control Box and all the way back to the negative battery pole.
Compromising the cable sections named B+, M- and B- on the drawing in the Wiring Diagram chapter.
3. Find the recommended power cable cross section for you installation by using the estimated total power cable length and the table shown in
Electrical Reference Guide chapter. Note that maximum cross section that fi ts through the grommet of the Control Box is 70mm2. Maximum
cross section that fi ts with the power cable terminal inside the Control Box is 50mm2. If a 70mm2 cable is used some of the wire strands must be
cut off to fi t the cable inside the terminal. If recommended cross section exceeds 70mm2 it is recommended to use as short as possible cables
between PPC and Control Box with maximum 70mm2 cross section. The recommended cross section or larger should then be used for the rest of
the power cables.
4. Find the recommended fuse rating by using the table shown in Electrical Reference Guide chapter. Use slow blow rated fuses to hold stated
nominal current for minimum 5 minutes.
5. Select appropriate dimensioned battery with Cold Cranking Amps (CCA) according to according to recommendations in Electrical Reference
Guide chapter. Battery voltage must be compliant with the voltage rating of the thruster motor and control circuitry. Capacity and rated discharge
current of battery should be according to rated nominal current drawn and typical duty cycle for thruster operation. Nominal current drawn is
listed in Electrical Reference Guide chapter. The actual voltage at the motor while running the thruster determines the motor RPM and thrust.
Cable losses can reduce the voltage level and result in reduced thrust. Use larger cable cross section and high-capacity battery for improved
performance.
6. Install the Control Box according to instructions in Control Box Installation chapter.
7. Install the control panel according to instructions in the installation manual of the selected Control Panel.
8. Install the battery, fuse, main switch and wiring according to instructions in Wiring Diagram chapter and installation manual of selected fuse and
main switch.
Electrical Reference Guide MC_0077
Model Size System
Voltage
Nominal
current
draw
Min. battery
CCA
Rec.
fuse
Cross Section Guide for Power Cables
Unit
<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.
35/140 12V 245 A
DIN: 200
SAE: 380
EN: 330
ANL 150
mm² 35 50 50 70 70 95 95 120 120 2 x 70 2 x 70 2 x 95
AWG 2 1/0 1/0 2/0 2/0 3/0 3/0 4/0 4/0 2 x 2/0 2 x 2/0 2 x 3/0
50/140S 12V 370 A
DIN: 350
SAE: 665
EN: 600
ANL 325
mm² 50 50 70 95 120 2 x 70 2 x 70 2 x 95 2 x 95 2 x 120 2 x 120 2 x 120
AWG 1/0 1/0 2/0 3/0 4/0 2 x 2/0 2 x 2/0 2 x 3/0 2 x 3/0 2 x 4/0 2 x 4/0 2 x 4/0

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SX35 & SX50
Control Box Installation
Follow the below steps to install the Control Box. Additional installation details can be found in the corresponding graphics.
1. Pull the blue SX Thruster Hose around the cable harness coming out of the SX Thruster. Fasten the hose clamp.
2. Defi ne the location to install the Control Box. It can be mounted in any orientation, preferably with cables facing down. The control box must be
positioned within 0.75 meters from the thruster attachment bolts. Ensure that the SX Thruster Hose will not obstruct any objects and not placed
near any object that radiate high temperatures.
3. Mark the locations of the four drill holes and drill the holes. Ensure that the back wall where the Control Box is to be mounted have suffi cient
thickness and strength.
MC_0075
MG_0530
Control box
installation location
SX thruster hose
Max 0.75m
1 2
3
Hose claps

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SX35 & SX50
Control Box Installation
Follow the below steps to install the Control Box. Additional installation details can be found in the corresponding graphics.
1. Pull the blue SX Thruster Hose around the cable harness coming out of the SX Thruster. Fasten the hose clamp.
2. Defi ne the location to install the Control Box. It can be mounted in any orientation, preferably with cables facing down. The control box must be
positioned within 0.75 meters from the thruster attachment bolts. Ensure that the SX Thruster Hose will not obstruct any objects and not placed
near any object that radiate high temperatures.
3. Mark the locations of the four drill holes and drill the holes. Ensure that the back wall where the Control Box is to be mounted have suffi cient
thickness and strength.
MC_0075
MG_0114
B-B+
SX50
CONTROL BOX
SX35
CONTROL BOX
4Tighten to
8 - 9.5 NM
6 - 7 ft/lb
Temp
switch NC
NTC
A1 A2
Control Box
hose clamp
Battery + / - cable
A1 / A2 cable
B-B+
Tighten to
3.6 - 3.9 NM
2.7 - 2.9 ft/lb
Temp
switch NC
NTC
A1 A2
SX/P 35 does not come with
a control box cover
65
Control Box Installation
4. Follow the cable marking and fasten motor power cables coming from the SX Thruster in the control box. The motor power cables are marked
A1 and A2 and should be fastened to the terminal with corresponding marking. Place the ring cable lug connected to the white wire between the
lug of the motor power cable and the nut. Fasten the nut with recommended torque. Ensure that the ring cable lug is kept at same terminal as
originally placed.
- Insert the B+ and M- power cables into the grommet as shown in fi gure below. Fasten the power cables to the terminals with recommended
torque.
- Connect the Temp Switch and NTC connector
5. Tighten hose clamp on Control Box.
6. Fasten the control box to the hull.
MC_0075
IMPORTANT
It is the installers full responsibility to follow instructions and ensure total Ignition Protection.

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SX35 & SX50
MG_0039
Visual Wiring Diagram
Control Box
4-lead cable
SX thruster
hose
SX thruster
-
+
B+
B-
++
THRUSTER
BATTERY
12V
Control
panel
Refer to your control panel manual for
detailed information on connecting the SX
system to your control device
*Automatic
MAIN SWITCH
(See Main Switch
installation manual)
Fuse 5A
*Automatic Main Switch can be replaced by a fuse holder and manual main switch.

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SX35 & SX50
MG_0039
Visual Wiring Diagram
Control Box
4-lead cable
SX thruster
hose
SX thruster
-
+
B+
B-
++
THRUSTER
BATTERY
12V
Control
panel
Refer to your control panel manual for
detailed information on connecting the SX
system to your control device
*Automatic
MAIN SWITCH
(See Main Switch
installation manual)
Fuse 5A
*Automatic Main Switch can be replaced by a fuse holder and manual main switch.
Control Panel Installation
For Control Panel installation please refer to the Installation Guide accompanying the control panel to be installed.
MC_0398
Control Panel
SLEIPNER MOTOR AS
P.O. Box 519
N-1612 Fredrikstad
Norway
www.sleipnergroup.com
DOCUMENT ID:
REVISION:
DATE:
LANGUAGE:
Installation Guide

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SX35 & SX50
MC_0081
Pre-delivery Checklist
�.......... Propeller is fastened correctly to the shaft.
�.......... Propeller turns freely in tunnel.
�.......... Primer and anti-fouling have been applied to the gear house and propeller but NOT on the
anode or the gear house lid where the propeller is fastened. (NB: Do not use abrasive tools
damaging the existing Epoxy coating when preparing for antifouling paint.)
�.......... Correct drive direction as per control panel.
�.......... The bolts holding the thruster to the hull are tightened correctly.
�.......... All electrical connections are clean, dry and tight, and the correct cable, fuse and main
switch size.
�.......... No water leakage around hull penetrated studs
�.......... Check that there is no electrical connection between the electro motor body and positive
terminal on the motor, and between the electro motor body and the negative (A1) terminal
on the motor with an ohm meter.
The thruster has been installed as per the instructions in this manual and all points in checklist above have been controlled.
Signed: .........................................................................................
Date: .............................................................................................
Extra pre-delivery tests by installer / yard who does not use other quality control systems !
Thruster type: ................................................................................................................................................................................................
Serial number:...............................................................................................................................................................................................
Date of delivery:.............................................................................................................................................................................................
Correct drive direction as per control panel: ..................................................................................................................................................
The compartment for the thruster has been isolated from general bilge water and has no obvious or suspected risks for flooding:
......................................................................................................................................................................................................................
......................................................................................................................................................................................................................
......................................................................................................................................................................................................................
Other comments by installer: ........................................................................................................................................................................
.......................................................................................................................................................................................................................
.......................................................................................................................................................................................................................
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