Lorentz PU1800 C-SJ3-18 Submersible Solar Pump 4m³/h 80m Centrifugal
Modelo: 10-012080 PU1800 C-SJ3-18, Rp1 1/4", UL- Sku: LOREBOM043
- Vendor: Lorentz
Specifications
Product Description
The Lorentz PU1800 C-SJ3-18 Submersible Solar Pump is a professional submersible unit (Pump Unit) designed to offer the perfect balance between flow rate and head in 4” wells. It combines the high-efficiency ECDRIVE motor with the PE C-SJ3-18 centrifugal hydraulic body made of AISI 304 stainless steel, with an integrated check valve. This version is supplied without controller, making it ideal for projects where a PS2-1800 is already available or where a custom system configuration is desired. With performance up to 4.0 m³/h and 80 m, it is a reliable, robust, and low-maintenance solution for water supply, transfers, and irrigation in solar installations.
Main Features
- Submersible unit with ECDRIVE 1200/1800-C brushless motor, water-filled, IP68 sealed, and maintenance-free.
- Centrifugal hydraulics PE C-SJ3-18 in AISI 304 with check valve to protect the discharge.
- Design performance: 4.0 m³/h flow rate and 80 m head with the appropriate controller.
- High system efficiency (with PS2-1800): controller up to 98%, motor up to 92%, hydraulics up to 54%.
- Compact format for 4” wells, silent operation, and long service life in clean water.
Advantages or Benefits
- Total flexibility: integrate the unit with your existing Lorentz PS2-1800 controller or select the most suitable one for your PV field.
- Minimal operating cost thanks to brushless technology and corrosion-resistant materials.
- Hydraulic safety due to the integrated check valve that prevents backflow and water hammer.
- Modularity: allows independent replacement of motor, hydraulics, or controller, reducing downtime.
- Stable performance across a wide range of conditions, maximizing water per kWh available.
Purpose or Applications
Supply to off-grid homes, tank filling, gravity or low/medium pressure irrigation, transfers on farms and livestock. Recommended for photovoltaic installations requiring a solid balance between flow rate (4.0 m³/h) and head (80 m) in 4” wells.
Technical Specifications
| Type | Submersible pump unit (PU) for solar system |
| Controller | Not included (recommended Lorentz PS2-1800) |
| Motor | ECDRIVE 1200/1800-C, brushless, water-filled, IP68 |
| Reference power | Up to 1.8 kW (depending on controller) |
| Hydraulics | PE C-SJ3-18, centrifugal, AISI 304, check valve |
| Max. flow rate / head | 4.0 m³/h / 80 m (with PS2-1800) |
| Max. current to motor | Up to 14 A (limited by controller) |
| Typical PV window (with PS2-1800) | Max. input 200 V; optimal Vmp > 102 V |
| Well diameter | 4” |
| Maximum immersion | Up to 150 m |
| Water temperature | Max. 50 °C |
| Approx. weight | ≈ 14 kg (motor ≈ 7.5 kg + hydraulics ≈ 6.5 kg) |
Compatibilities
Direct compatibility with Lorentz PS2-1800 Controller, with the PE C-SJ3-18 head (included in this unit) and standard 4” discharge accessories. Supports dry well sensors and float switches via the PS2 controller. For the photovoltaic generator, configure strings that respect the controller window (Isc current and Vmp within range).
The Lorentz PU1800 C-SJ3-18 Submersible Solar Pump is the perfect modular choice when you want to renew only the submersible part or build an optimized solar pumping system, combining efficiency, reliability, and ease of integration.
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Lorentz PU1800 C-SJ3-18 Submersible Solar Pump 4m³/h 80m Centrifugal
