Sleipner SACPM900, SACPM1100, SACPM1400 AC Thrusters — Installation Manual
Installation data for the Sleipner Side-Power SACPM900, SACPM1100 and SACPM1400 liquid-cooled AC electric tunnel thrusters: specifications, coolant requirements, tunnel dimensions, gear leg drilling, motor and coupling torques, VFDs and power cables.
Product Specifications
| Item | SACPM900/513-C | SACPM1100/513-C | SACPM1400/610-C |
|---|---|---|---|
| Tunnel inside diameter | 513 mm | 513 mm | 610 mm |
| Thrust continuous (max. NA) | 900 kg / 1984 lbs | 1100 kg / 2425 lbs | 1400 kg / 3086 lbs |
| Motor output | 53 kW / 72 Hp | 70 kW / 95 Hp | 83 kW / 112 Hp |
| Typical boat size | 29-44 m / 95-144 ft | 32-49 m / 104-160 ft | 40-55 m / 131-180 ft |
| Supply, 3-phase | 380-690 V | 380-690 V | 380-690 V |
| Motor IP | 66 | 66 | 66 |
| Current draw max. 400 / 500 / 690V | 93 / 74 / 54 A | 121 / 97 / 70 A | 192 / 153 / 111 A |
| Generator load max. | 63 kVA | 79 kVA | 100 kVA |
| Weight | 262 kg / 577 lbs | 297 kg / 654 lbs | 327 kg / 720 lbs |
Motor cooling (operating conditions)
| Item | Value |
|---|---|
| Coolant mixture | Water with glycol (40 - 60%) |
| Coolant temperature | ≤65°C / <40°C (model specific) |
| Volume flow rate | 10 - 25l/min (nominal 20l/min) |
| Pressure drop | <1bar @20l/min, 65°C |
| Max coolant pressure | 3bar |
| Operating ambient temperature | -20°C to 65°C |
The PDF prints the SACPM1400 tunnel as "610/21" mm/in in the specification table (as printed); the dimension table gives 610 mm / 24.0 in. Gear legs are DNV type approved, gravity fed with optional on-water oil change; galvanic separation kit available as option.
Tunnel and Bracket Dimensions
| Code | Description | SACPM900 | SACPM1100 | SACPM1400 |
|---|---|---|---|---|
| ID | Internal tunnel diameter | 513 mm | 513 mm | 610 mm |
| H / W / L | Bracket height / width / length | 244 / 490 / 428 mm | 244 / 490 / 428 mm | 244 / 490 / 428 mm |
| X | Motor height | 416 mm | 516 mm | 516 mm |
| WD | Water depth | 800 mm | 900 mm | 900 mm |
| TL | Tunnel length min. / recommended | 750 / 1000 mm | 750 / 1000 mm | 750 / 1000 mm |
| T | Tunnel wall thickness min. / max. | 12 / 22 mm | 12 / 22 mm | 14 / 24 mm |
Motor weights in the motor dimension table: SACPM900/513 103 kg, SACPM1100/513 and SACPM1400/610 138 kg. Motor coolant connections 1/2" BSPP.
Gear Leg and Propeller
- Tunnel position, length and rounded ends as for the other SAC thrusters. Metal hulls: never mount without the Sleipner galvanic isolation kit.
- Drill the centre hole first on the vessel centreline: ØA 116 mm, B 95 mm, ØC 17 mm, D 25 mm; optional ØE 17 mm for on-water oil change.
- Gear leg filled with oil before fitting, drain plug 24Nm; gear leg to motor bracket 80Nm with sealant on both gasket faces (not in bolt holes).
- Propeller lock nut 400Nm (parallel key, approx. 1mm gap, grease only on the thread, tab washer folded over); anode bolt 30Nm.
Motor and Coupling
- Parallel key in the gear shaft keyway; seawater resistant grease on motor and gear leg shafts.
- Lower coupling hub onto the gear shaft, set screw in but not tight. The motor can face any direction on the bracket – keep the hose terminals accessible.
- Motor bracket to tunnel bracket: 85 Nm.
- Spider onto the lower hub; upper hub onto the motor shaft, clamping screws lightly tightened.
- Lower the motor so both hubs engage the spider; motor to bracket 33 Nm.
- Centre the coupling through the side openings with a 4 mm internal gap between the halves, then tighten the lower set screw (17Nm) and upper hub clamping screws (120Nm).
More than 10 degrees off vertical needs additional mechanical support, using the M10x18 attachment points on the motor (design with a naval architect).
- Oil container above the waterline by at least 20% of the waterline-to-tunnel-centre distance, oil tube with no loops; fill and drain the gear leg simultaneously so the system is never empty.
VFD and Power Cables
| Model | VFD | Supply | Max current | Min. cable, temp class 70 / 90 |
|---|---|---|---|---|
| SACPM900/513-C-4 | ACS880-01-096A-5 (R6) | 380-500 V | 93 A | 50 / 25 mm² |
| SACPM900/513-C-4L | ACS880-31-101A-5 (R8) | 380-500 V | 93 A | 50 / 25 mm² |
| SACPM900/513-C-7 | ACS880-01-061A-7 (R6) | 690 V | 54 A | 35 / 25 mm² |
| SACPM1100/513-C-4L | ACS880-31-124A-5 (R8) | 380-500 V | 121 A | 90 / 50 mm² |
| SACPM1100/513-C-7 | ACS880-01-084A-7 (R6) | 690 V | 70 A | 35 / 25 mm² |
| SACPM1400/610-C-4 | ACS880-01-206A-3 (R7) | 380-415 V | 192 A | 150 / 95 mm² |
| SACPM1400/610-C-4L | ACS880-31-206A-3 (R8) | 380-415 V | 192 A | 150 / 95 mm² |
| SACPM1400/610-C-7 | ACS880-01-119A-7 (R7) | 690 V | 111 A | 95 / 50 mm² |
The SACPM1100 rows in the PDF tables carry some typing errors in the model codes (e.g. "SACPM100", a -C-7 row with a 380-500 V drive ACS880-01-124A-5); check the VFD delivered against the thruster. All VFDs are IP 55. Cable sizes are a general indication only: certified electricians, VFD manual, regulations, temperature, routing and length apply.
- PDC-301 on S-Link drives the VFD; thrust is limited above 130°C winding temperature and the motor stops above 150°C ("Motor Over-temp").
- Optional Limited Power via VFD input DI2 (+24V), parameters 30.23 / 30.24 (default -50.0 % / 50.0 %); emergency stop via the ABB STO (Safe Torque Off) function.
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