⚙️ Submersible Motor 4" ESPA O4I: oil-cooled motor for 4" hydraulics
The ESPA O4I is a 4" oil-cooled submersible motor for installation on 4" submersible hydraulics. The casing and shaft are made of AISI 304 stainless steel, and the coupling complies with the NEMA MG1-18.388 standard. It is available in single-phase 230 V (0.75 to 3 HP) and three-phase 400 V or 230 V (up to 7.5 HP) versions.
✔ O4I Motor Features
- ✅ 2-pole asynchronous motor, oil-cooled
- ✅ IPX8 protection and class F insulation
- ✅ Continuous duty
- ✅ Single-phase: built-in thermal protection and external capacitor (not included)
- ✅ Cable without plug (section and length in the table)
📊 Technical Table by Model
| Model | Voltage | HP | P2 (kW) | Current (A) | Capacitor (µF) | Cable | Weight (kg) |
|---|---|---|---|---|---|---|---|
| O4I 100M | 1x230V | 1 | 0,75 | 5,9 | 35 | 4 x 1.5 mm², 1.7 m | 8,5 |
| O4I 150M | 1x230V | 1,5 | 1,1 | 8,3 | 40 | 4 x 1.5 mm², 1.7 m | 10,2 |
| O4I 200M | 1x230V | 2 | 1,5 | 10,7 | 60 | 4 x 1.5 mm², 1.7 m | 11,7 |
| O4I 300M | 1x230V | 3 | 2,2 | 15,2 | 80 | 4 x 1.5 mm², 1.7 m | 15,1 |
| O4I 075 | 3x400V | 0,75 | 0,55 | 2 | - | 4 x 1.5 mm², 1.7 m | 7,2 |
| O4I 100 | 3x400V | 1 | 0,75 | 2,5 | - | 4 x 1.5 mm², 1.7 m | 8,5 |
| O4I 150 | 3x400V | 1,5 | 1,1 | 3,4 | - | 4 x 1.5 mm², 1.7 m | 9,4 |
| O4I 200 | 3x400V | 2 | 1,5 | 4,8 | - | 4 x 1.5 mm², 1.7 m | 10,2 |
| O4I 300 | 3x400V | 3 | 2,2 | 6,1 | - | 4 x 1.5 mm², 1.7 m | 11,9 |
| O4I 400 | 3x400V | 4 | 3 | 7,1 | - | 4 x 2 mm², 2.7 m | 16,2 |
| O4I 550 | 3x400V | 5,5 | 4 | 9,2 | - | 4 x 2 mm², 2.7 m | 20,1 |
| O4I 750 | 3x400V | 7,5 | 5,5 | 11,7 | - | 4 x 2 mm², 2.7 m | 24,7 |
| O4I 100 | 3x230V | 1 | 0,75 | 4,5 | - | 4 x 1.5 mm², 1.7 m | 8,5 |
| O4I 150 | 3x230V | 1,5 | 1,1 | 6,2 | - | 4 x 1.5 mm², 1.7 m | 9,4 |
| O4I 200 | 3x230V | 2 | 1,5 | 7,9 | - | 4 x 1.5 mm², 1.7 m | 10,2 |
| O4I 300 | 3x230V | 3 | 2,2 | 10,9 | - | 4 x 1.5 mm², 1.7 m | 11,9 |
| O4I 400 | 3x230V | 4 | 3 | 13,6 | - | 4 x 2 mm², 2.7 m | 16,2 |
| O4I 550 | 3x230V | 5,5 | 4 | 17,6 | - | 4 x 2 mm², 2.7 m | 20,1 |
| O4I 075M | 1x230V | 0,75 | 0,55 | 4,7 | 25 | 4 x 1.5 mm², 1.7 m | 7,2 |
📋 Technical Information
- ✅ Maximum water temperature: 35 °C
- ✅ Casing and shaft: AISI 304 stainless steel
- ✅ Seals: NBR/EPDM
- ✅ Coupling: NEMA MG1-18.388
- ✅ Frequency: 50 Hz