
4SD(M) · 4-INCH SUBMERSIBLE MOTOR
4SD(M) submersible motor.
Oil-filled NEMA flange drive.
Published data describes oil-filled 4-inch motors with NEMA-standard flange connectors, permanently lubricated bearings, watertight double-insulated cable entry, and a rubber diaphragm for thermal oil expansion.
● Published pages 4-5 · 16 motor codes · no current selector records

1φ POWER0.5-3.0 HP
3φ POWER0.5-10.1 HP
IMMERSION492.1 ft
PROTECTIONIP68
Series Overview
Key specifications shared across the 4SD(M) series.
Published specification lists insulation class F, IP68 protection, water temperature up to 35°C, pH 6.5-8.0, minimum cooling flow 8 cm/sec, maximum 30 starts per hour, and maximum immersion depth 150 m. Axial load ratings are published by power band from 1500 N to 9000 N. Special features on request include other voltages and optional cable length. Type B and Type D seal-type cable connections are illustrated.
Model Range
Compare hydraulic performance across all available power ratings.
Published dimensions and weights list every code for 50 Hz/60 Hz service. No current English selector configuration rows are attached to this motor Contents entry.
| Model | Phase | Power HP | Length L mm | N.W. kg | G.W. kg | Packing mm |
|---|---|---|---|---|---|---|
| 4SDM0.37 | 1 | 0.5 | 333 | 7.5 | 8.1 | 400x130x150 |
| 4SDM0.55 | 1 | 0.7 | 353 | 8.3 | 8.9 | 420x130x150 |
| 4SDM0.75 | 1 | 1.0 | 378 | 9.0 | 9.7 | 445x130x150 |
| 4SDM1.1 | 1 | 1.5 | 442 | 11.0 | 11.7 | 510x130x150 |
| 4SDM1.5 | 1 | 2.0 | 472 | 12.4 | 13.2 | 540x130x150 |
| 4SDM2.2 | 1 | 3.0 | 517 | 14.8 | 15.9 | 590x130x150 |
| 4SD0.37 | 3 | 0.5 | 333 | 6.5 | 7.1 | 385x130x150 |
| 4SD0.55 | 3 | 0.7 | 333 | 7.3 | 7.9 | 400x130x150 |
| 4SD0.75 | 3 | 1.0 | 363 | 8.7 | 9.6 | 430x130x150 |
| 4SD1.1 | 3 | 1.5 | 407 | 9.7 | 10.4 | 475x130x150 |
| 4SD1.5 | 3 | 2.0 | 442 | 11.1 | 11.8 | 510x130x150 |
| 4SD2.2 | 3 | 3.0 | 502 | 13.8 | 14.8 | 570x130x150 |
| 4SD3 | 3 | 4.0 | 552 | 16.6 | 17.7 | 620x130x150 |
| 4SD4 | 3 | 5.4 | 602 | 19.0 | 20.2 | 670x130x150 |
| 4SD5.5 | 3 | 7.4 | 746 | 27.3 | 28.5 | 800x130x150 |
| 4SD7.5 | 3 | 10.1 | 853 | 31.4 | 32.8 | 900x130x150 |
Published HP values are shown from the motor table. North American pages convert kW to HP for display. Single-phase 60 Hz supply is listed as 220 V ±10% in published data; confirm the approved North American voltage, including any 115 V customization, when ordering.
Materials
Published component materials.
Printed page 5 lists materials of components for the cutaway motor assembly.
- Upper support
- Cast-cu or cast iron
- Bearing house
- Aluminum die casting
- End cover / motor casing / shaft
- AISI 304 SS
- Sand guard / O-ring / pressure regulator
- NBR
- Mechanical seal
- Ceramics - Carbon
- Insulation / protection
- Class F / IP68
FAQ
Selection questions answered from evidence.
Is 4SD(M) a motor family or a pump family?
Published data titles 4SD(M) as a 4-inch submersible motor Contents entry on printed pages 4-5. It is the motor paired with deep-well pump families such as 4ST(M).
What does the M suffix mean on this page?
Published nomenclature states M marks single-phase motors. Codes without M are three-phase.
Which supply options are published?
Published data lists single-phase 230 V ±10% 50 Hz and 220 V ±10% 60 Hz, plus three-phase 230/220 V and 400/380 V options by frequency. Other voltages and optional cable length are request features.
Are current English selector records available for 4SD(M)?
No current English catalog hydraulic/configuration rows are attached to this Contents entry. The sixteen codes below come from the published dimensions and weights table.
Does this page publish float-switch options?
No. 4SD(M) is a motor family; float-switch pump configurations are not listed on these published motor pages.
Continue from published data