
3040 40U Cabinet Guide - 3
Drive tray – Contains drives, redundant cooling fans and power supplies, and one or two environmental services
modules (ESMs).
Power Requirements and Heat Dissipation
Maximum Number of Drive Trays
Power Requirements and Heat Dissipation
Power in the 3040 40U cabinet is provided by a power distribution unit (PDU) that consists of these components:
AC power entry boxes
Power strip
The 3040 40U cabinet is rated at 200 VAC to 240 VAC at 50 Hz to 60 Hz, and it operates to ±10 percent of that
range. The cabinet power strip provides a maximum of 72A of usable power. Power is provided to equipment in the
cabinet by 24 ICE320 power outlets on the power strip. The outlets are grouped into six independent banks with four
outlets per bank. The outlets are mounted at 2U intervals. Each outlet bank is rated at a maximum of 12A, and each
power outlet is rated at a maximum of 10A. A 15A circuit breaker protects each of the six banks of outlets. The circuit
breakers for the banks of outlets are located on the power strip.
The 3040 40U cabinet has three power entry boxes located at the bottom of the cabinet. Each power entry box
provides power to eight of the power outlets. Power entry box 1, which has power cord C1, supplies power to the
bottom eight outlets; power entry box 2, which has power cord C2, supplies power to the middle eight outlets; power
entry box 3, which has power cord C3, supplies power to the top eight outlets. The power entry boxes are labeled C1,
C2, and C3 where the power cords connect to the modules.
Table 1. Power Calculations and Heat Calculations for the Cabinet
Component kVA Watts Btu/Hr
Cabinet PDU (72A PDUs) 14.4 14400 49176
Cabinet PDU/12A bank (72A PDUs) 2.40* 2400* 8196*
E2612 controller-drive tray 0.400 399 1366
E2624 controller-drive tray 0.331 330 1127
E2660 controller-drive tray 1.268 1222 4180
E2712 controller-drive tray 0.400 399 1366
E2724 controller-drive tray 0.331 330 1127
E2760 controller-drive tray 1.268 1222 4180
E5412 controller-drive tray 0.589 589 2016
E5424 controller-drive tray 0.567 567 1935
E5460 controller-drive tray 1.246 1204 4119
E5512 controller-drive tray (200 VAC typical) .668 662 2262
E5512 controller-drive tray (200 VAC maximum) .674 670 2293
E5524 controller-drive tray (200 VAC typical) .495 483 1653
E5524 controller-drive tray (200 VAC maximum) .561 554 1896
E5560 controller-drive tray (200 VAC typical) 1.146 1097 3751
E5560 controller-drive tray (200 VAC maximum) 1.191 1179 4032