SSI America EPS2U manual AC Input Requirements, AC Inlet Connector, AC Input Voltage Specification

SSI

EPS2U Power Supply Design Guide, V2.1

5AC Input Requirements

STATUS

Required

The power supply shall incorporate universal power input with active power factor correction, which shall reduce line harmonics in accordance with the EN61000-3-2 and JEIDA MITI standards.

5.1AC Inlet Connector

STATUS

Required

The AC input connector shall be an IEC 320 C-14power inlet. This inlet is rated for 15 A/250 VAC.

5.2AC Input Voltage Specification

STATUS

Required

The power supply must operate within all specified limits over the following input voltage range. Harmonic distortion of up to 10% THD must not cause the power supply to go out of specified limits. The power supply shall operate properly at 85 VAC input voltage to guarantee proper design margins.

Table 2: AC Input Rating

5.3Efficiency

STATUS

Recommended

PARAMETER	MIN		RATED	MAX
Voltage (110)	90	Vrms	100-127 Vrms	140 Vrms
Voltage (220)	180 Vrms		200-240 Vrms	264 Vrms
Frequency	47	Hz		63 Hz

The following efficiency requirements are provided as a recommendation to allow for proper power supply cooling when installed in a system.

Table 3: Efficiency

Power Level	Efficiency	Airflow (reference)
480W	68%	20 CFM
550W	68%	20 CFM
600W	72%	20 CFM
650W	72%	20 CFM
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