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Before Installation
Read the following precautions before installing any power cord or
plug on a PDU.
WARNING! DO NOT perform wiring assembly for this product
unless you are an experienced, licensed electrician. Assembly
or attempted assembly by inexperienced or unlicensed
electricians may result in electrical shock, fire, personal injury,
and death. If you are not a qualified electrician with
appropriate licensing and insurance - STOP NOW. This is work
you cannot and should not attempt. Raritan is not responsible
for any consequential damages to equipment or loss of data
due to improper installation.
FOR QUALIFIED ELECTRICIANS: Read the instructions in their
entirety before starting the installation. You must follow all
wiring instructions, ensure compliance with national and local
safety and electrical codes, and follow all other electrical
safety requirements with regard to over-current protection.
STOP and contact Raritan Technical Support if you are unsure
of any answers, or have additional questions.
QS Rule
Flexible Cord Installation Instructions
The following instructions are for Raritan products manufactured to
accept user-installed flexible cords. These products are visually
identified by the cable gland used to hold the flexible cord.
Flexible Cord Selection
•
The preferred flexible cable is type SOOW, 600V, 90°C or 105°C.
Consult Raritan before using a different flexible cable type.
•
The rated ampacity of the flexible cord must be greater than or
equal to the Raritan product's rated ampacity marked on its
nameplate. In the United States, relevant ampacity ratings for
flexible cords can be found in NEC(2011) section 400.5.
•
The number of wires in the flexible cord must match the
number of terminals (including the ground terminal) inside the
Raritan product. See
Wiring of 3-Phase In-Line Monitors
page 3) for exceptions.
Raritan PX Power Cord Installation Guide
PowerCord_InstallGuide_1B_3.6.10 255-80-6083-00 RoHS
•
If a plug is to be attached to the flexible cord, the length of the
flexible cord must not exceed 4.5 meters - as specified in UL
60950-1 (2007) and NEC 645.5 (2011).
•
The flexible cord may be permanently connected to power
subject to local regulatory agency approval. In the United
States, relevant electrical regulations can be found in NEC
(2011) sections 400.7(A)(8), 400.7(B), 368.56 and table 400.4.
Plug Selection
If a plug is to be attached to the flexible cord, the plug's rated
ampacity is chosen as follows:
•
In the United States, as specified in UL 60950-1, the plug's rated
ampacity must be 125% greater than the Raritan product's
rated ampacity. In some Raritan products, such as 35A 3-phase
delta wired PDUs, an exactly 125% rated plug is not available. In
these cases, choose the closest plug that is more than 125%.
For example, a 50A plug is the closest fit for a 35A 3-phase PDU.
•
For all other locations, subject to local regulatory agency policy,
the plug's rated ampacity is the same as the Raritan products
rated ampacity.
Receptacle Selection
For Raritan in-line monitors, any receptacle fitted to the outlet
flexible cord must have identical ratings as the plug attached to the
inlet flexible cord.
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.
(on
2
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