74W Power Supply |
| Input
Specifications |
U.
S. |
Outside
U. S. |
Nominal Line Voltage
|
100 to 120 VAC |
220 to 240 VAC |
Range Input Line
|
90 to 132 VAC |
180 to 264 VAC |
Frequency Range
|
47 to 63 Hz |
47 to 63 Hz |
Power Factor
|
0.6 |
0.6 |
Input Power
|
106.5 W at 90 VAC |
106.5 W at 180 VAC |
Input Current
|
1.93 A at 90 VAC |
0.937 A at 180 VAC |
Inrush Current
|
90 A / 10 ms max |
90 A / 10 ms max |
Holdup Time
|
16 ms from zero
crossing at 120 VAC |
16 ms from zero
crossing at 240 VAC |
| General Specifications |
Full Output Rating
|
To 122°
F and 5,000 ft
To 90° F and 10,000 ft
(derate linearly) |
To 50°
C and 1524 m
To 32° C and 3048 m
(derate linearly) |
Minimum Load
|
1.0 A on + 5.0 V output |
1.0 A on + 5.0 V output |
| Ambient Temperature Range |
Operating
|
50° to 122° F |
10° to 50° C |
Storage
|
-40° to 151° F |
-40° to 66° C |
| Dielectric Voltage Withstand |
Input to Ground
|
2500 VAC per second |
|
Safety Standard |
| UL 1950; CSA 22.2 #950 or CSA 22.2 #234; TUV/VDE EN 60 950
(VDE0805/11.91); EMKO-TSE (74-SEC) 207/93 |
| Input Transient Susceptibility |
Common and Differential Mode (superimposed on AC line)
|
2500 V, 1 µs, damped sinusoidal
600 V, 10 µs pulse |
Differential Mode
|
20% step change in AC input voltage |
