B-1
Cisco IE 4000 Switch Hardware Installation Guide
.
APPENDIX
B
Technical Specifications
This appendix provides the technical specification for the Cisco IE 4000 switches.
Operating Temperature Specifications
Table B-1 lists the operating temperatures for the Cisco IE 4000 switches in three different
environments.
Note The safety certifications apply only to ambient temperatures under 158°F (70°C). However, the
Cisco IE 4000 switch can function in the substation and traffic signal installations under the
environmental conditions shown in Table B-1.
Table B-1 Operating Temperature for the Cisco IE 4000 Switches
Industrial Automation and
Hazardous Locations Substation Traffic Signal
Enclosure
types
Sealed enclosures
For example: NEMA4, NEMA4X,
NEMA12, NEMA13, IP54, and
IP66.
Vented enclosures
For example: NEMA1, IP20, and
IP21.
Fan or blower-equipped
enclosures
For example: NEMA TS-2.
Note The minimum airflow is
150 lfm
1
.
1. lfm = linear feet per minute.
Operating
temperature
2
2. Operating temperature ranges provided are based on the stated NEMA standards. The switch is test verified for operation to -40°F/40°C. There is no
safety coverage outside of these parameters.
–40 to 158°F (–40 to 70°C) –40 to 158°F (–40 to 70°C) –29 to 167°F (–34 to 75°C)
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