Chapter 2 Switch Installation
Preparing for Installation
Caution Airflow around the switch must be unrestricted. To prevent the switch from overheating, there must be the following minimum clearances:
–Top and bottom: 2.0 in. (50.8 mm)
–Sides: 2.0 in. (50.8 mm)
–Front: 2.0 in. (50.8 mm)
Additional Information for Installation in a Hazardous Environment
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 Use
Warning This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication
Cisco IE 2000 Switch Hardware Installation Guide
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