Question 1

Is Nema 4X better than Nema 4?

Accepted Answer

Yes, Nema 4X is better than Nema 4. A NEMA 4 rating indicates that the equipment provides protection against dust and water (including water directed through hoses). NEMA 4X is the same as NEMA 4 but provides additional protection against corrosion. After consulting relevant information, we found that NEMA 250 test requires NEMA 4X equipment to withstand 200 hours of salt spray testing.

Question 2

What is the difference between NEMA 4X and IPx5 enclosures?

Accepted Answer

In the case of NEMA 4X enclosures versus IPx5 enclosures, the main difference between the two is corrosion protection. IPx5 enclosures do not have a level of protection against corrosion hazards, while NEMA 4X enclosures have passed corresponding corrosion protection tests. Therefore, IPx5 and NEMA 4 are closer because they have no requirements for corrosion resistance.

Question 3

Who can test NEMA enclosure types of the equipment?

Accepted Answer

NEMA enclosure types is proposed by NEMA, but NEMA is not a certification body or testing laboratory and is not responsible for corresponding testing. On NEMA's official website, we can see relevant testing agencies, including but not limited to UL LLC, Intertek, TUV Rheinland North America, FM Approvals and Curtis-Straus, LLC, etc.

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LED Garden Light

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Lighting Accessories

Smart Systems

Simulation Design

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