Lorentz PU4000 C-SJ17-4 Submersible Solar Pump 26m³/h 45m
Modelo: 10-004651 PU4000 C-SJ17-4, Rp 2 1/2", UL- Sku: LOREBOM065
- Vendor: Lorentz
Specifications
Product Description
The Lorentz PU4000 C-SJ17-4 Submersible Solar Pump is a pump unit (Pump Unit) designed for balanced flow and pressure in professional applications. It integrates a high-efficiency ECDRIVE 4000-C submersible motor and the PE C-SJ17-4 centrifugal hydraulic body in AISI 304 stainless steel, reaching up to 26 m³/h and 45 m head. This PU version does not include a controller, so it is intended to be combined with Lorentz controllers from its platform to operate with photovoltaic energy with MPPT, protections, and automation via probes and float switches.
Main Features
- Maximum flow 26 m³/h and maximum head 45 m (6" wells).
- Centrifugal C-SJ17-4 hydraulics with integrated check valve; efficiency ≈69%.
- ECDRIVE 4000-C motor, brushless, IP68, water-lubricated; nominal power ~4.0 kW.
- Construction in AISI 304 stainless steel for long service life in clean water.
- Lorentz modular architecture: simple servicing and original spare parts available.
- Silent operation and minimal maintenance.
Advantages or Benefits
- Excellent flow–pressure balance for irrigation to multiple outlets and elevated tanks.
- Superior durability thanks to stainless materials and the sealed motor design.
- Check valve that protects the water column and prevents backflow.
- Scalability: by adding a Lorentz controller, MPPT, protections, and level control are obtained.
- Quick installation in 6" wells and easy integration into new or existing solar systems.
Purpose or Applications
Suitable for agricultural irrigation, livestock, transfers between tanks, filling reservoirs, and supplying networks at low/medium pressure in off-grid or hybrid installations that prioritize reliability and energy efficiency.
Technical Specifications
| Model | Lorentz PU4000 C-SJ17-4 |
| Type | Pump unit (PU) without controller |
| Hydraulics | Centrifugal PE C-SJ17-4 with check valve |
| Max flow / head | 26 m³/h / 45 m |
| Hydraulic efficiency | ≈ 69 % |
| Motor | ECDRIVE 4000-C, brushless, IP68, water-lubricated |
| Nominal motor power | ≈ 4.0 kW |
| Materials in contact | AISI 304 stainless steel |
| Minimum well diameter | 6" |
| Water temperature | ≤ 50 °C (clean water) |
| Maximum immersion | Up to 150 m (depending on installation) |
| Unit weight | ≈ 20 kg (motor ≈ 10 kg + hydraulics ≈ 9.5 kg) |
Compatibilities
This unit does not include a controller. It is compatible with Lorentz controllers from the same platform (e.g., PS2-4000) that provide MPPT and protections. When pairing with PS2-4000, size the PV generator for aggregate Vmp > 238 V, total Voc ≤ 375 V DC, and an Isc within the controller's admissible range. Use Lorentz accessories and spare parts from the C-SJ series and ECDRIVE motors.
The Lorentz PU4000 C-SJ17-4 offers pressure and flow with industrial reliability, ideal for building high-performance submersible solar pump systems in professional projects.
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Lorentz PU4000 C-SJ17-4 Submersible Solar Pump 26m³/h 45m





