Dell PowerEdge R420 Technical Guide - Page 46

Maximum shock Operating Storage Half sine shock in all operational orientations of 31G +/- 5% with a pulse duration of 2.6ms +/- 10% Half sine shock on all six sides of 71G +/- 5% with a pulse duration of 2ms +/- 10%; square wave shock on all six sides of 27G with velocity change at 235 in/sec or greater Altitude Operating Storage - 15.2m to 3048m (- 50 ft to 10,000 ft) - 15.2m to 12,000m (- 50 ft to 39,370 ft) Airborne contaminant level Class G1 or lower as defined by ISA- S71.04- 1985 Power supply specifications Table 27 lists power supply specifications for the PowerEdge R420. Table 27. Power supply specifications Specification Redundant 350W Non-redundant 550W Redundant 550W Current consumption Supply voltage 4.8A- 2.4A 100- 240 VAC1 7.4A- 3.7A 100- 240 VAC1 7.4A- 3.7A 100- 240 VAC1 Frequency 50/60Hz 50/60Hz 50/60Hz Heat dissipation (BTU/hr max) Maximum inrush current2 1356 55A 2317 55A 2133 55A 1Auto- ranging 2Under typical line conditions and over the entire system ambient operating range, the inrush current may reach 55A per power supply for 10ms or less. Rack rail specifications Table 28 lists the spacing dimensions for the R420 sliding and static rails. Table 28. Rail adjustability range Product R420 Rail identifier A7 A8 Rail type Sliding Static Rail adjustability range (mm) Rail depth (mm) Square Min Max Round Min Max Threaded without CMA Min Max with CMA 681 868 667 861 681 883 720 845 608 879 594 872 604 890 622 - 46 PowerEdge R420 Technical Guide