Dell EMC DSS8440 Installation and Service Manual

PSU specifications

The system supports up to four redundant AC power supply units (PSUs).

Table 1. PSU specificationsThe following table shows the specifications for 2400 W power supplies:
Functions	2400W Power supply
Input
Input voltage range	AC input : 200Vac~240Vac @ High line : 2400W
Frequency	50/60 Hz
Efficiency	VIN=230Vac 89% @ 10% load 93% @ 20%load 94% @ 50% load 100% load @ 91.5% load
Power Factor	PF at 230Vac/50,60 Hz > 0.88 @ 10% load > 0.94 @ 20% load > 0.98 @ 50% load > 0.99 @ 100% load
iTHD	230Vac/60 Hz 25% @ 0% load 25% @10% load 10% @ 20% load 5% @50% load 4% @100% load
Hold-up Time	13.5ms @ 100% load
Conducted EMI	Class A
Radiated EMI	Class A
Output
Main DC Output
Voltage Regulation	12.2V +/-5%
Output current	196.72A @ high line
Standby Output
Voltage Regulation	12V +/-5%
Output current	3.5A