Grundfos CRNF 3-11 Solar Surface Pump – Efficiency Meets Innovation

The Grundfos CRNF 3-11 Solar Surface Pump is a high-performance, vertical, centrifugal multi-stage pump designed to deliver outstanding efficiency for industrial and solar-powered applications. Its inline (non-self-priming) configuration makes it a perfect fit for in-pipe systems, while the robust construction ensures ease of mounting on a foundation. This pump incorporates advanced features like the Maximum Power Point Tracking (MPPT) software, enabling optimal energy utilization when connected to solar panels. Furthermore, the built-in motor electronics include motor protection, eliminating the need for additional safety mechanisms and ensuring smooth, hassle-free operation.

Unparalleled Technical Specifications

The Grundfos CRNF 3-11 pump is engineered for precision and durability. With a rated flow of 3.5 m³/h and a rated head of 79.2 m, it is capable of managing demanding applications seamlessly. Its primary HQQE shaft seal ensures robust sealing performance, enhancing reliability and longevity. Crafted from high-grade stainless steel AISI 316, the pump housing and impeller guarantee resistance to corrosion and harsh conditions. Moreover, the wide liquid temperature range (-20°C to 120°C) and high operating pressure limit (up to 25 bar) make it versatile for diverse environments.

Superior Motor Design and Flexibility

Equipped with the advanced MGF motor, the Grundfos CRNF 3-11 offers remarkable adaptability with support for both DC (30-300 V) and AC (90-240 V) supplies. The rated power of 1.5 kW ensures reliable performance, while the motor speed reaches up to an impressive 3600 rpm. The IP55 enclosure class and F-grade insulation further enhance its safety and durability, making it an ideal choice for heavy-duty operations. An optional external sensor can also be integrated to provide precise control over pump functionality, enhancing overall user convenience.

Unmatched Quality and Certifications

The Grundfos CRNF 3-11 Solar Surface Pump prioritizes quality and safety. It complies with industry-leading standards, carrying certifications like CE, UKCA, SEPRO, and RCM. For drinking water applications, this pump is also certified by WRAS and ACS. With a minimum efficiency index (MEI) of ≥ 0.70, you can count on energy-efficient performance and reduced environmental impact.

Choose the Grundfos CRNF 3-11 Solar Surface Pump for your operational needs, and experience unparalleled efficiency, robust design, and innovative integration — the perfect solution for solar and industrial pumping requirements.

One system. Many options. For your individual needs

In combination with the Sunny Portal powered by ennexOS, the Data Manager M enables monitoring, management, and grid-compliant power control in decentralized PV systems. Thanks to flexible expansion options, the Data Manager M is already well-equipped for business models in the energy market of the future. The Data Manager M is the ideal professional system interface for electric utility companies, direct sellers, service technicians, and PV system operators.

Coordinated user interfaces and intuitive assistance functions to simplify operation, parameterization, and commissioning. Both variants are modularly expandable with many additional functions and interfaces.

Professional monitoring and control for decentralized energy systems up to the megawatt range

The Data Manager M is the perfect monitoring and control solution for decentralized large-scale PV power plants up to 2.5 MVA with up to 50 devices. Thanks to the RS485 and Ethernet interfaces as well as analog and digital input and output systems, users benefit from particularly versatile connection options. The Data Manager M is the professional system interface for electric utility companies, direct sellers, service technicians, and PV system operators.

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