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Hazardous Location Installation Information
This appendix provides hazardous location installation information for the Cisco IE 4000 switches.
Hazardous Area Installation Warnings
Warning:
Exposure to some chemicals could degrade the sealing properties of materials used in the sealed relay
device. Statement 381
Warning:
Failure to securely tighten the captive screws can result in an electrical arc if the connector is accidentally
removed. Statement 397
Warning:
When you connect or disconnect the power and/or alarm connector with power applied, an electrical arc
can occur. This could cause an explosion in hazardous area installations. Be sure that all power is removed from the
switch and any other circuits. Be sure that power cannot be accidentally turned on or verify that the area is
nonhazardous before proceeding. Statement 1058
Warning:
In switch installations in a hazardous location, the DC power source could be located away from the
vicinity of the switch. Before performing any of the following procedures, locate the DC circuit to ensure that the
power is removed and cannot be turned on accidentally, or verify that the area is nonhazardous before proceeding.
Statement 1059
Warning:
This equipment is supplied as "open type" equipment. It must be mounted within an enclosure that is
suitably designed for those specific environmental conditions that will be present and appropriately designed to
prevent personal injury resulting from accessibility to live parts. The interior of the enclosure must be accessible
only by the use of a tool.
The enclosure must meet IP 54 or NEMA type 4 minimum enclosure rating standards. Statement 1063
Warning:
When used in a Class I, Division 2, hazardous location, this equipment must be mounted in a suitable
enclosure with proper wiring method, for all power, input and output wiring, that complies with the governing
electrical codes and in accordance with the authority having jurisdiction over Class I, Division 2 installations.
Statement 1066
Warning:
Use twisted-pair supply wires suitable for 86°F (30°C) above surrounding ambient temperature outside
the enclosure. Statement 1067
Warning:
This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category
II applications (as defined in IEC publication 60664-1), and at altitudes up to 2000 meters without derating.
Statement 1068
Warning:
Do not connect or disconnect cables to the ports while power is applied to the switch or any device on
the network because an electrical arc can occur. This could cause an explosion in hazardous location installations.
Be sure that power is removed from the switch and cannot be accidentally be turned on, or verify that the area is
nonhazardous before proceeding. Statement 1070
Warning:
If you connect or disconnect the console cable with power applied to the switch or any device on the
network, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that
power is removed or the area is nonhazardous before proceeding. Statement 1080
Cisco Systems, Inc.
www.cisco.com
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