Description
The Grundfos 5 SQ05-180 is a 3-inch multi-stage submersible pump built for domestic water supply, tank liquid transfer, irrigation, and environmental applications requiring reliable, compact deep-well performance.
Key Features
- Permanent Magnet Motor Technology Single-phase MS3 motor with permanent magnet rotor delivers optimum efficiency across a wide load range with direct-on-line starting and IP68 waterproof enclosure.
- Floating Impeller Design Each multi-stage impeller floats on its own individual tungsten carbide/ceramic bearing, reducing wear and extending pump service life under continuous operation.
- Comprehensive Built-In Protection Integrated soft start and automatic protection against dry-running, upthrust, overvoltage, undervoltage, overload, and overtemperature safeguard the motor without external modules.
- Stainless Steel Construction Pump body and motor housing are manufactured from AISI 304 stainless steel, with glass-fiber-reinforced composite impellers rated for continuous water service from 0–35°C.
- Compact 3-Inch Form Factor Fits boreholes from 76mm diameter with a 1" NPT pump outlet and maximum operating pressure of 15 bar, suitable for a wide range of well and tank installations.
The 5 SQ05-180 operates at a rated speed of 10,700 RPM, delivering a rated flow of 1 m³/h at a rated head of 72 m, with a maximum head exceeding 90 m at low flow. Power input is 1.09kW with a rated shaft power of 0.7kW, and the motor draws 12A at 100–115V single phase, 50Hz.
The motor is fitted with a replaceable end cover with socket for simplified field serviceability, and the 1.5m factory-fitted cable allows for immediate installation without additional cable prep. The unit is certified to cULus and meets ISO 9906:2012 Grade 3B curve tolerance, ensuring performance consistency across production batches.
Technical Specifications
| Specification | Details |
|---|---|
| Product No. | 96160165 |
| Model | 5 SQ05-180 |
| Motor Type | MS3 — Single-phase permanent magnet |
| Rated Voltage | 1 x 100–115V |
| Mains Frequency | 50Hz |
| Power Input (P1) | 1.09 kW |
| Rated Power (P2) | 0.7 kW |
| Power (P2) Required by Pump | 1 kW |
| Rated Current | 12A |
| Power Factor | 1.00 |
| Rated Speed | 10,700 RPM |
| Starting Method | Direct-on-line |
| Rated Flow | 1 m³/h |
| Rated Head | 72 m |
| Pumped Liquid | Water |
| Liquid Temperature Range | 0–35°C |
| Maximum Operating Pressure | 15 bar |
| Pump Outlet | 1" NPT |
| Minimum Borehole Diameter | 76 mm |
| Pump Material | Stainless steel — AISI 304 (EN 1.4301) |
| Impeller Material | Composite — ZYTEL 70G30 HSLR PA6.6-GF30 |
| Motor Material | Stainless steel — AISI 304 (DIN W.-Nr. 1.4301) |
| Enclosure Class | IP68 |
| Insulation Class | F |
| Cable Length | 1.5 m |
| Approvals | cULus |
| Curve Tolerance | ISO 9906:2012 Grade 3B |
| Net Weight | 10.8 lbs (4.9 kg) |
| Gross Weight | 12.3 lbs (5.6 kg) |


