Compaq AP550 Compaq Professional Workstation AP550 Maintenance & Service G - Page 164

-W Power Supply, Table 7-6, W Power Supply Specifications

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7-8 Compaq Professional Workstation AP550 Maintenance and Service Guide 375-W Power Supply Table 7-6 375-W Power Supply Specifications Input specifications Rated input voltage Rated input current Rated input frequency General specifications Input power Holdup time Full output rating Minimum load Ambient temperature range Operating Storage Safety standard Input transient susceptibility Surge-tolerant power supply (superimposed on AC line) Low Range 100 VAC to 120 VAC 8 A 50 to 60 Hz High Range 200 VAC to 240 VAC 4 A 50 to 60 Hz 650W 16 ms from zero crossing at 115 VAC To 40°C and 5,000 ft To 32°C and 10,000 ft (derate linearly) 1.5A on + 5V and +3.3V outputs; 0.2A on +12V 650W 16 ms from zero crossing at 230 VAC 50° to 104°F 10° to 40°C -40° to 149°F -40° to 65°C UL 1950 3rd edition; CSA 22.2 No. 950 3rd edition, EN 60 950 2000V surge per IEC1000-4-5 with no abnormal operation

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7-8
Compaq Professional Workstation AP550 Maintenance and Service Guide
375-W Power Supply
Table 7-6
375-W Power Supply Specifications
Input specifications
Low Range
High Range
Rated input voltage
100 VAC to 120 VAC
200 VAC to 240 VAC
Rated input current
8 A
4 A
Rated input frequency
50 to 60 Hz
50 to 60 Hz
General specifications
Input power
650W
650W
Holdup time
16 ms from zero crossing at
115 VAC
16 ms from zero crossing at
230 VAC
Full output rating
To 40
°
C and 5,000 ft
To 32
°
C and 10,000 ft (derate
linearly)
Minimum load
1.5A on + 5V and +3.3V outputs;
0.2A on +12V
Ambient temperature range
Operating
50
°
to 104
°
F
10
°
to 40
°
C
Storage
-40
°
to 149
°
F
-40
°
to 65
°
C
Safety standard
UL 1950 3
rd
edition; CSA 22.2 No. 950 3
rd
edition, EN 60 950
Input transient susceptibility
Surge-tolerant power supply
(superimposed on AC line)
2000V surge per IEC1000-4-5 with no abnormal operation