Rockwell Automation 2500 CENTERLINE Motor Control Centers Installation Manual - Manual (Page 24)

24 Rockwell Automation Publication 2500-IN001C-EN-P - April 2014
Chapter 3 Install Columns
Environment
CENTERLINE 2500 MCCs are designed to operate under the service
conditions described in IEC 61439-1. Be aware that variations in temperature
and relative humidity could potentially cause occasional condensation.
Temperature
When operating an MCC, ambient air temperature must remain in the range of
-5…40 °C. The average temperature over a 24-hour period must not exceed 35 °C.
Humidity
Non-condensing humidity is permissible up to 95% at the maximum temperature
of 40 °C, with the average temperature not exceeding 35 °C over a 24-hour period.
Altitude
The CENTERLINE 2500 MCC is designed to operate at installation sites at
altitudes up to 1000 m above sea level without derating. If the altitude at your
installation site exceeds 1000 m above sea level, contact your Rockwell
Automation representative for derating information.
Pollution Degree
CENTERLINE 2500 MCCs are designed for use in a pollution degree 3
environment. IEC 61439-1 defines pollution degree 3 as, “conductive pollution
occurs or dry, non-conductive pollution occurs that become conductive due to
condensation.”