Technical Guide

Table 23. PSUs Highline and Lowline Ratings
1400 W Platinum 2400 W Platinum
Peak Power
(Highline/-72 VDC)
Highline/-72 VDC
Peak Power
(Lowline/-40 VDC)
Lowline/-40 VDC
Highline 240 VDC
Highline 200-380 VDC
DC-48-60 V
PowerEdge systems support number of AC or DC power supplies.
Dell PSUs have achieved Platinum efficiency levels as shown in the table below.
Table 24. PSU Efficiency Level
Form
Factor
Output Class 10% 20% 50% 100%
Redundan
t 60 mm
Redundan
t 86 mm
Environmental specifications
The table below details the environmental specifications for the platform. For additional information about environmental
measurements for specific system configurations, see Product Safety, EMC and Environmental datasheets .
An important feature of having a broad menu of different categories is to allow the same platform model to have different
operational ranges depending on the MRD defined.
A list of range categories for different configurations shall be identified by thermal team as early in the project as possible. Post
release, see the Dell EMC PowerEdge R450 Technical Specifications at www.dell.com/poweredgemanuals.
Table 25. Operational Climatic Range Categories
Category A2 Allowable Operation
Temperature Ranges (For Altitude <900 meters or 2953 feet) 10 to 35°C (50 to 95°F) with no direct sunlight on the
platform
Humidity Percent Ranges (Non-Condensing at all times) 8%RH with -12°C minimum dew point to 80%RH with 21°C
(69.8°F) maximum dew point
Operational Altitude De-Rating Maximum temperature is reduced by 1°C/300 meters
(1.8°F/984 feet) above 900 meters (2,953 feet)
Table 26. Operational Climatic Range Categories
Category A3 Allowable Operation
Temperature Ranges (For Altitude <900 meters or 2953 feet) 5 to 40°C (41 to 104°F) with no direct sunlight on the
platform
44 Appendix A. Additional specifications