Datasheet summary
SP 1A
PDF datasheet mirror for SP 1A (Grundfos Pumps). Verify with OEM before design.
Summary
Product identification
- Product line: Grundfos SP 1A Submersible pumps, motors and accessories
- Frequency: 50 Hz
- Models listed: SP 1A-9, SP 1A-14, SP 1A-18, SP 1A-21, SP 1A-28, SP 1A-36, SP 1A-42, SP 1A-50, SP 1A-57
Electrical
- Motor type: MS 402
- Motor power:
- 0.37 kW (for SP 1A-9, SP 1A-14)
- 0.55 kW (for SP 1A-18, SP 1A-21)
- 0.75 kW (for SP 1A-28)
- 1.1 kW (for SP 1A-36, SP 1A-42)
- 1.5 kW (for SP 1A-50, SP 1A-57)
- Voltage configurations for which dimensions and weights are provided: 1x230V, 3x230V, 3x400V
Mechanical / hydraulic
- Maximum diameter of pump inclusive of cable guard and motor: 101 mm
- Connection: Rp 1 1/4
- Performance curves are available for Head (H) in [m] and [kPa], Power (P2) in [kW] and [hp], and Efficiency (Eta) in [%] versus Flow (Q) in [m³/h] and [l/s].
- Performance curves are based on ISO 9906 Annex A.
Dimensions and weights
The extract provides tabulated dimensions and net weights for various SP 1A pump models.
| Pump type | Motor Power [kW] | Dimensions [mm] (C, B, A) | Dimensions [mm] (1x230V) | Dimensions [mm] (3x230V) | Dimensions [mm] (3x400V) | Net weight [kg] (1x230V) | Net weight [kg] (3x230V) | Net weight [kg] (3x400V) |
|---|---|---|---|---|---|---|---|---|
| SP 1A-9 | 0.37 | 344, 256, 226 | 600 | 570 | 11 | 9 | ||
| SP 1A-14 | 0.37 | 449, 256, 226 | 705 | 675 | 12 | 10 | ||
| SP 1A-18 | 0.55 | 533, 291, 241 | 824 | 774 | 14 | 12 | ||
| SP 1A-21 | 0.55 | 596, 291, 241 | 887 | 837 | 14 | 12 | ||
| SP 1A-28 | 0.75 | 743, 306, 276 | 1049 | 1019 | 16 | 15 | ||
| SP 1A-36 | 1.1 | 956, 346, 306 | 1302 | 1262 | 25 | 23 | ||
| SP 1A-42 | 1.1 | 1082, 346, 306 | 1428 | 1388 | 27 | 25 | ||
| SP 1A-50 | 1.5 | 1250, 346, 346 | 1596 | 1596 | 30 | 29 | ||
| SP 1A-57 | 1.5 | 1397, 346, 346 | 1743 | 1743 | 32 | 32 |
Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the complete range of specifications found in the official OEM PDF datasheet. Contractual data for any project must always match the specific OEM PDF revision used for that project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.