Hoffman WEATHERFLO VFD Enclosures for Thermal Protection
The Hoffman WEATHERFLO VFD Enclosure
Variable Frequency Drives (VFDs) keep industry in motion. Hoffman WEATHERFLO VFD Enclosures deliver active heat ventilation reducing heat buildup and VFD failure.
The Hoffman WEATHERFLO VFD Enclosure provides heat ventilation for a VFD cooling solution that reduces heat to optimize Variable Frequency Drive Efficiency and reduce failures. Hoffman’s WEATHERFLO outdoor enclosure uses forced-air ventilation and shielded impellers allowing VFD enclosure ventilation for outdoor applications where solar heat and heavy moisture are factors. Forced-air ventilation pulls in ambient air at the enclosure bottom and exhausts hot air out the top. In colder environments, Hoffman heater products guard drives from damage due to cold starts. An adjustable thermostat (70˚-140˚F) starts the fan when needed.
Dissipation of solar heat within VFD outdoor enclosures is impacted by the enclosure’s interior and exterior surface color and material.
WEATHERFLO enclosures are NEMA Type 3R compliant, standards which ensure VFD protection in a wide range of harsh outdoor applications including irrigation, pulp and paper, water and wastewater, oil and gas, mining, boring and HVAC. WEATHERFLO also complies with the ASHRAE 90.1-2004 energy code requirement.
Weather Resistant VFD Enclosure: a Complete Solution
Hoffman WEATHERFLO enclosures are weather and corrosion-resistant, protecting industrial motors and controls with heavy-duty aluminum construction and stainless mesh screens on the top and base. This guards against debris and animal entrance, and a reflective white polyester finish reduces solar absorption by 75%.
(Left) WEATHERFLO HD for100-500 HP variable frequency drives. (Right) WEHTERFLO Standard enclosure.
This VFD Outdoor Enclosure comes pre-assembled for easy setup. Once in place, the enclosure back panel features flexible horizontal or vertical openings for fast operator access to reduce downtime. Hoffman’s WEATHERFLO enclosure provides a complete solution, saving you time and protecting your VFD investment.
With all the choices out there for Variable Frequency Drives, you may need help choosing an enclosure that suits your drive cooling requirements. Your enclosure choice impacts costs of operation across your installed base of applications, each of which can present the need for a different cooling solution.That’s where we can help. Our Drives team will meet with you and discuss your applications and goals.
Shop for The Hoffman WEATHERFLO VFD Enclosures
41 x 24 x 12, Hoffman WF25LP WeatherFlo® Vented Enclosure, NEMA 3R/IP32, Steel, 1-Door, Lift-Off Hinged HOWF25LP
35 x 24 x 12, Hoffman WF10LP WeatherFlo® Vented Enclosure, NEMA 3R/IP32, Steel, 1-Door, Lift-Off Hinged HOWF10LP
Let us help you through the process, from commissioning and testing to repairs or replacements down the road. We’ve got you covered with technicians across the country who can be dispatched in an emergency or for routine diagnostics. Learn more about our Dedication to Drives program for a comprehensive solution.
For more ways to protect Variable Frequency Drives and electrical motors, read VFD load filters and load reactors, Short Circuit protection, Drive Isolation Transformers and choosing NEMA low voltage motors. Need help selecting a VFD Drive? See our integrated motor control.
