The drives that control process functions, and
the switch gear that handle critical power functions,
must perform flawlessly and at peak efficiency.
Current control and communications systems are
very reliable, but with the advance of Ethernet
technology now reaching motor control centers
(MCCs) and switch gear, the Ethernet cabling
component must be especially reliable and robust.
　

Ethernet is finding increased use in industrial
environments since it is a standards-based
technology that utilizes a single cabling platform
with Ethernet connectivity and IP addressing.
This convergence of open, standards-based
Ethernet communications provides for secure,
seamless interoperability between the corporate
office and the plant, plus it enables Internet
connectivity, anytime and anywhere. Industrial
Ethernet communications are also faster than
current network protocol technologies and they
provide greater bandwidth.
　

The advance of Ethernet has prompted an increased
use of intelligent devices equipped with Ethernet
ports. As these devices are often in close proximity
to noise-producing machinery, an electromagnetic
interference (EMI) problem might occur that could
prove detrimental to signal integrity. In MCCs,
drives could produce enough EMI to interfere with
many traditiional Ethernet cables. Moreover, the
need to monitor and control these devices will
demand that the cable enter the MCC. As a result,
these applications require an Ethernet cable with
excellent noise immunity, as well as the ability to
run on or near listed devices.
　

Benefits of Using Belden DataTuff
Category 5e 600V AWM-Rated Cables

Belden provides two Industrial Ethernet Category 5e
cables designed specifically for superior electrical
performance and outstanding noise immunity. The
Belden DataTuff 4-pair shielded cables carry a 600V
AWM rating which makes them approved for use in
listed MCCs and switch gear, and they feature
Belden’s patented Bonded-Pair technology.
　

While these cables have the design and certifications
that make them ideal for MCC and switch gear
applications, they can also be used for more traditional
Ethernet applications. They are not, however,
intended for 600V power delivery.
　

Belden's Bonded-Pair Technology

Belden Bonded-Pair cables have the conductor
insulation of the cable pairs affixed along their
longitudinal axes to ensure that no performance
robbing gaps can occur between the conductor
pairs. Since no gaps can occur, and the conductorto-
conductor spacing, or centricity, is always
uniform, the cable offers excellent and consistently
reliable electrical performance – even when it is
subjected to the rigors of the installation process
and the factory floor environment.
　

Cable Construction Overview

Belden DataTuff Category 5e Industrial Ethernet
cables feature 24 AWG Bonded-Pair solid bare
copper conductors, polyolefin insulation, 24 AWG
stranded tinned copper drain wires and industrialgrade
oil- and sunlight-resistant PVC jackets.

Belden has designated shielded designs to provide
assured performance in highly concentrated
EMI/RFI environments. Part No. 7958A has an
overall Beldfoil® shield; Part No. 7957A has
an overall Beldfoil shield + 70% tinned copper
braid. Belden’s patented Beldfoil shield, with its
aluminum/polyester foil, offers 100 percent
protection against EMI/RFI. When the Beldfoil
shield is used in combination with the 70%
braid shield, the cable offers enhanced structural
integrity and a lower DC resistance.
　

Cable Ratings/Approvals

Part Nos. 7958A and 7957A are Ethernet/IP
compliant and offer the following ratings and
approvals: UL 600V AWM 21047, UL C(UL)
CMR FT4, RoHS and CE.