Rittal Top Therm Fan and Filter Units: How to Protect the CSA and UL Certifications
When combining Rittal rain hoods with the company’s standard Top Therm filter fans, users can achieve NEMA 3R, 4 and 4X ratings — a low cost cooling solution that maintains the protection category of the enclosures in the harshest of environments. Don’t risk the NEMA ratings by…



