Rittal Top Therm Fan and Filter Units: How to Protect the CSA and UL Certifications

Rittal TopTherm Fan & Filter Units

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 substituting another make of fan. They apply only if Rittal Top Therm fans are part of the solution.

Customers who use non-Rittal fans no longer have a CSA or UL certified solution — a key point to remember. Customers who use low cost competitive fans with the hoods and think that they are getting CSA/UL certified NEMA protection are not.

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