In hot climates or areas with high solar radiation, the risk of overheating increases considerably, along with the possibility of premature failure of critical components.
Furthermore, these converters incorporate high-density power electronics that generate heat continuously, even under nominal operation. If heat dissipation is not properly managed, the system may experience efficiency losses, accelerated material degradation, or even forced shutdowns. Therefore, having a reliable, robust ventilation solution adapted to harsh environments is not just advisable: it is essential.
Aware of this need, RC Microelectrónica, as official distributors, collaborates closely with NMB to offer solutions that meet the current challenges of solar conversion. NMB's IP68/IP69K fan series has been specifically developed to guarantee efficient thermal performance under extreme conditions, providing robustness, durability, and intelligent cooling control.
NMB IP68/IP69K Series: Robust, Intelligent, and Durable Ventilation.
Designed to operate in harsh environments, this series boasts the highest levels of environmental protection according to international standards IEC 60529 and ISO 20653. This translates into complete dustproofing and proven resistance to high-pressure, high-temperature water jets, such as those used in industrial cleaning processes or during heavy rain in outdoor installations. This type of protection is especially valued in applications where the system is exposed to the elements or requires frequent maintenance.
The fans in this range are available in sizes from 40 to 172 mm and in various voltages: 12 V, 24 V, and 48 V, facilitating their integration into multiple electronic configurations. They incorporate a TACH (fan speed output) signal for real-time speed monitoring, a feature that allows for the early detection of any anomalies or performance loss in the ventilation system.
One of the highlights of this series is the quality of its mechanical components. The fans are equipped with precision ball bearings, developed by NMB itself, with stainless steel outer rings and, optionally, ceramic balls.
Technical characteristics of the IP68/IP69K series
• Available sizes: from 40 mm to 172 mm
• Voltages: 12 VDC, 24 VDC and 48 VDC
• Estimated service life: up to 100,000 ha at 25 °C / 40,000 ha at 60 °C
• Possibility of incorporating flow control via PWM system
Beyond the solar sector: multiple possible applications.
Although this series is especially suitable for solar conversion systems, its robustness and performance make it an excellent choice for other industries where thermal control is essential. In industrial automation, these fans are ideal for cooling electrical cabinets, variable frequency drives, PLCs, and control systems operating in demanding environments, thanks to their high resistance to dust, humidity, and pressure cleaning processes.
For electric vehicle chargers, their IP68/IP69K protection ensures reliable outdoor operation, maintaining optimal temperatures for the electronics and extending their lifespan. In telecommunications, they are ideal for base stations and remote nodes, helping to prevent overheating and guarantee service continuity. Furthermore, their compact size and durability make them well-suited for industrial IoT devices and embedded electronics installed in hard-to-reach locations, minimizing the need for frequent maintenance. They are also a reliable solution for power supplies, inverters, and UPS systems, maintaining stable temperatures in critical components and improving energy efficiency, thus reducing the likelihood of failures. Finally, in electronic instrumentation, medical equipment, and hygienic environments, their compatibility with pressure cleaning processes and resistance to chemicals make them an ideal choice for equipment requiring high precision and strict sanitary conditions.
