SRV100 Vertical Retract, 12V

SRV100 Vertical Retract, 12V
100kg thrust ON/OFF

The flange mounted SRV-series thrusters have the thruster unit in a casing that will be bolted to a base. This allows for easier installation in hulls made from different materials, as well as in series production where you do not need to mix laminating and engineering type jobs.

The 185mm tunnel diameter thrusters uses one fast and powerful actuator, while the 250mm tunnel diameter models have two actuators to handle the increased forces with the same exceptionally fast deploy/ retract operation time.

The unique design of the underwater mechanism with only a few, but very sturdy parts that all contribute to the stability of the moving assembly. The unit is also designed to keep the thruster as compact as possible while enabling the safe use of heavier motors on the more powerful units. The vertical installation of the motors also reduce the impact forces on the assembly in extreme waves compared to motors fitted at an angle.

The SRV100/185T thrusters are built with the same high safety standards as all Side-Power products, and incorporate all features introduced with the SE-series thrusters. Our focus on safety is a totally integral part of the product design so that everything from build quality to ease of installation is thought of to ensure long term reliability.

Side-Power Intelligent Power Control

Intelligent Power Control

The Side Power unique thruster controller that intelligently protects the thruster from potential inherent problems in all high current applications as well as user faults. It includes several important safety features imperative in a product with such high power, run by DC electrics, as a thruster.

  • Provides delay between drive directions
  • Monitors solenoid functions to reduce the chance of solenoid lock-in
  • Will stop the thruster in case of a lockedin solenoid, without extra user action and even without controlling a main switch.

Side-Power Q-prop™


The new 5 blade special skew propellers are the result of over 2 years of development work and thousands of tests. They have been designed to reduce the noise level, while maintaining the exceptional efficiency of the old 4 blade Side-Power propellers. This goal was achieved, and we even chose to make them a little bit more aggressive on some models, increasing the thrust on some thrusters about 5%. Please see individual information on each new thruster for more details.

  • Noise reductions of up to 75% measured in controlled environments
  • The expected and tested normal noise reduction in average installations: 20-40%
  • Will be delivered on all Side-Power models except models with 300mm and 385mm tunnel diameter
  • Upgrade kits are available for most SP series thrusters with special adaptors

Side-Power Sealed Drive Lifetime Lubricated

Sealed and lifetime lubricated gearleg

Sealed gearleg with long-life "mechanical" seal where highly polished ceramic and carbon surfaces form the only moving sealing surfaces, ensuring protection against damaging water intrusion into the gear leg. Pre-filled with special gear oil for lifetime lubrication.

  • "Mechanical" seals with surfaces of ceramic and carbon for ultimate security against water intrusion

Side-Power Twin Propellers

Twin Propellers

The twin propeller system can give more thrust than a single propeller system in the same tunnel diameter. This is our choice for our mid-range models where high thrust is required in a small tunnel diameter. Due to the compact design and high performance, the twin models have become the thrusters of choice among boat builders around the world.


Side-Power Galvanic Separation

Galvanic Separation

The gearhouse / drive legs of most Side-Power DC Electric thrusters are now fully galvanically isolated / separated from the electric motor and motor bracket. This ensures that even if there is an accidental short circuit or a current leak for other reasons, the immersed parts are not effected as they could be with direct electric contact.

  • Achieved by composite bushings around the bolts and beneath the washers and a bushing in the motor bracket electrically isolating the drive housing from the motor bracket.
  • Available on DC electric models with flexible couplers only, where the flexible coupler provides galvanic separation of the motor and gearleg shaft.

Side-Power S-link™


S-link™ is a CAN-based control system with full intelligent communication between all units in the system, much like a computer network.

Main advantages include:
  • Round, compact and waterproof connectors with unique keying and color coding to avoid faulty hookup
  • Unlimited number of commands or information transferred on a single cable
  • User feedback at panel
  • Intelligent troubleshooting
  • Separate base for easier installation
  • Plug and play S-link™ digital control system
  • Shear pins on hatch to prevent hull damage 
  • Motor assembly rigid mounted on retract casing, no moving parts during deployment/retract operation
  • Compact construction
  • Reliable retract mechanism, avoids sticking/jamming
  • Fast deployment/retract time - ca. 3 - 5 seconds
  • User friendly control panel with status feedback
  • Q-prop™
  • Sealed Drive - lifetime lubricated
  • Galvanic Separation
  • IPC intelligence for extra safety
Thrust at 10.5V* (kg) 100
Thrust at 12V* (kg) 116
Typical boat size (ft · m) 35 - 55 · 10 - 17
Tunnel inner diameter (mm) 185
Propulsion Twin
Power at 10.5V* (kW · Hp) 6,3 · 8,4
For DC system (V) 12
Weight (kg) 44
Min. battery capacity (CCA**) 750
Control system Digital (S-link)

* All Side-Power thrusters gets their thrust rating from the actual performance you can expect in a boat - at the voltage a normal installation will provide at the thruster. We have choosen to use the net performance at 10.5V/21V, but we also list the effect at 12/24V for comparison.

** All battery CCA ratings are stated with the DIN rating, multiply by 1.9 to to get the SAE equivalent (at 0ºF, ABYC standard)


SR serien - Measurement - Side Power

A (mm · in) 450· 17.7
B (mm · in) 564 · 22.2
C (mm · in) Ø185 · 7.3
D (mm · in) 335 · 13.2
E min (mm · in) 359 · 14.1
F (mm · in) 234 · 9.2
G (mm · in) 513 · 19.7
G (m.hyd-motor) 353 · 13.9
H (mm · in) 185 · 7.3

See what our customers think

Magnus Rassy CEO at Hallberg-Rassy

Hallberg Rassy have chosen Side-Power retractable thrusters with proportional control for both bow and stern thrusters in their new HR412. Magnus Rassy, the owner and CEO of Hallberg Rassy, shares his experiences with the award-winning system.


Bernt Ellingsen Delphia 47 Boat Owner

Boat owner Bengt Ellingsen (Delphia 47) on his experiences with the unique Hold-function.

# Description Product
1 Propeller 7 1261
2 Propeller drivepin 6 1241
3 Propeller washer 7 1181
4 Locknut 4 1260
5 Anode 7 1190 A
6 Gasket 8 0610
7 Driveshaft key 6 1440
8 Gearleg bolt 12830
9 Complete gearleg 8 0601
10 Complete flexible coupling 7 1462
11 Brushes for motor (kit)** **
12 Brush springs for motor (kit)** **
13 Electric motor N/A
14 Key for eletric motor shaft 10 1440
15 Solenoid bracket kit 9 0136 12
16 Internal wiring loom 6 1222
17 Internal wiring loom 6 1223
18 Electronic control unit 150000
19 Solenoid 1013713
20 Complete solenoid kit 8 0133 12
21 Solenoid Cover 6 2025
22 Nut for solenoid cover 6 8810
23 Complete electric motor assembly 8 0107 12
24 Temp sensor 31020
25 Vertical drive shaft kit 6 2076
26 Lower vertical drive shaft kit TBA
27 Horizontal shaft kit 6 2075
28 Actuator 140000-P8
29 Shear washer 140117
30 Sensor 140144
31 Anode retract 6 1180
32 Shaft sealing 140029
33 Retract ring support kit 185mm 6 2142
34 Retract tunnel anode w/bolts 140629
35 Complete Retract tunnel kit 185mm tba
36 Complete Retract mechanism assembly tba
37 Extension harness for 150000 control unit 6 2202-DC-3M

The installer alone has responsibility for the installation of the spare parts. Side-Power only warranty the spare parts supplied only.

The information given in the document was correct at the time it was published. However, Sleipner Motor AS can not accept liability for any inaccuracies or omissions it may contain. Continuous product improvement may change the product specifications without notice. Therefore, Sleipner Motor AS can not accept liability for any possible differences between product and document.

File Type Language Download
(INSTALLATION MANUAL) (SR SE L&V) (80, 100).pdf Installation Manual English  Download
Product specification sheet_DC_thrusters.pdf Product sheet English  Download
(USER MANUAL) (SR).pdf User Manual English  Download
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