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NFPA 79 – How to Apply Standard?

Some points that may be difficult to interpret by looking at SPD technical data such as Type 1 vs type 2. Weidmuller’s VPU AC II US product models have North American voltage levels according to UL and not European voltages according to IEC. The product is however CE and can be used for EU applications. It is always important to differentiate between IEC and UL voltages.

PTM Published on: 2021-06-04