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Tormac ECO Series Submersible Motors
- Series
- D4 - D10
- Diameter
- 4", 6", 8", 10"
- Rated Output
- 0.37 kW – 110 kW (0.5 – 150 HP)
Tormac ECO series borehole submersible motors — water-cooled and rewindable in the field. Stainless steel stator shell, housings and motor base resist corrosion; the pressure-equalising diaphragm and shaft seal keep sand and well water out of the winding. Available 4", 6", 8" and 10", 380/415 V three phase, to NEMA mounting standards.
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Tormac · PDF · 4.5 MB
Features
- Rewindable construction — repairs and rewinding are done at field level
- Stainless steel 304/316 stator shell, housings shell and motor base
- Pre-filled with environmentally safe deionised water as lubricant and coolant
- Uniquely designed thrust bearing rated 3,000 N to 75,000 N by frame
- Shaft seal and sand guard prevent ingress of liquid and sand
- High-temperature 70°C / 90°C versions available with PT sensor and PE2 / XLPE / PA winding
Technical Specifications
| Series | ECO Series, water-filled rewindable |
|---|---|
| Diameter | 4", 6", 8", 10" |
| Rated Output | 0.37 kW – 110 kW (0.5 – 150 HP) |
| Rated Speed | 2900 rpm |
| Standard Voltage | 380/415 V, 3 Phase, 50 Hz |
| Voltage Tolerance | −15% / +6% |
| Protection | IP 58 / IP 68 |
| Duty | S1 (Continuous) |
| Rotation Sequence | CW & CCW |
| Class of Insulation | Y |
| Minimum Linear Flow | 0.15 m/s (4"–6"), 0.16 m/s (7"–10") |
| Liquid Temperature | 38°C max. |
| Mounting Dimensions | NEMA Standard |
| Starting Method | DOL / Star-Delta (Wye-Delta above 37 kW) |
| Internal Fill | Deionised water (lubricant and coolant) |
Technical Data by Frame — ECO Series 50 Hz
Tormac Submersible Motor 50 Hz catalogue, pages 20-22 · powers listed here run to 150 HP
| Specification | 4" | 6" | 7" | 8" | 10" |
|---|---|---|---|---|---|
| Rated Output | 0.37–7.5 kW | 4–45 kW | 37–75 kW | 37–93 kW | 81–220 kW |
| Power (HP) | 0.5–10 | 5.5–60 | 50–100 | 50–125 | 110–300 |
| Outer Diameter | 98 mm | 143 mm | 180 mm | 196 mm | 236 mm |
| Protection | IP 58 | IP 58 / IP 68 | IP 68 | IP 58 / IP 68 | IP 68 |
| Thrust Load | 3,000–6,500 N | 15,500–27,500 N | 45,500 N | 45,500 N | 60,000–75,000 N |
| Switching Frequency | 20 / hour | 20 / hour | 4 / hour | 15 / hour | 10 / hour |
| Minimum Linear Flow | 0.15 m/s | 0.15 m/s | 0.16 m/s | 0.16 m/s | 0.16 m/s |
| Starting Method | DOL (1Ph CSCR) | DOL / SD | DOL / SD | DOL / SD | DOL / SD |