Raritan PX3-3000 series, User Manual

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Chapter 10: In-Line Monitors
641
Derating a Raritan Product
Lower rated plugs, receptacles and flexible cords may be connected to a
Raritan product. This results in a derated (reduced) ampacity rating for
the product.
Derating guidelines:
1. Choose the plug and use its rated ampacity to determine the derated
ampacity.

In the United States, as specified in UL 60950-1, the derated
ampacity is 80% of the plug’s rated ampacity. For example, a 30A
plug would result in a derated ampacity of 24A.

In other geographic locations, subject to local regulatory agency
approval, the derated ampacity is the plug’s rated ampacity.
For example, using a 16A plug would result in a derated
ampacity of 16A.
2. The derated ampacity must be marked on the Raritan product so the
new reduced rating can be easily identified.
3. For in-line monitors, the receptacles used must have the same
voltage and ampacity rating as the plug chosen in step 1.
4. The flexible cord must have a rated ampacity greater than or equal
to the derated ampacity. Since the new flexible cord may be smaller
diameter, a check must be performed to insure the cable gland nut,
when tightened, will securely hold the flexible cord so that it cannot
be twisted, pulled or pushed in the cable gland. A sealing ring, for
small diameter flexible cords, may have been included with the
Raritan product, or one can be requested from Raritan, to reduce the
inside diameter of the cable gland.