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參數(shù)資料
| 型號： | NX350-U4F |
| 廠商： | C |
| 英文描述： | 350 WATT DC/DC POWER SUPPLY |
| 中文描述： | 350瓦直流/直流電源 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 162K |
| 代理商： | NX350-U4F |
NX350 3/98 REV B
Page 2
Input Specifications
Parameter
Operating Range
Conditions
47-63 Hz
Min
90
Typ
Max
264
Units
V
AC
Inrush Current Limiting
120V
AC,
cold start
37
A
PK
240V
AC
cold start
70
A
PK
Efficiency
120V, full load
70
%
%
240V, full load
75
Power Factor Correction (PFC)
0.99
Meets IEC 1000-4-7/EN61000-3-2 (formerly IEC 555-2)
Remote Sense
Remote Sense is provided on Output #1 and will
compensate for 0.7V of line drop. Remote Sense leads are
protected against open, short and reversal.
Remote On/Of
The power supply is turned on with a TTL logic ‘1’ (or open)
signal and turned off by a switch closure or TTL logic ‘0’
referenced to (-) sense terminal. Consult the factory for other
options.
Over Voltage Protection
Output #1: 6.5V ± 0.5 V
DC.
The power supply will latch off until AC power is cycled.
Over Current Protection
Individual current limit on all outputs. Automatic recovery
upon fault removal.
Transient Response
The peak output voltage excursion will not exceed 2% and
will recover within 1% in 200
μ
sec for a 25% load step
change.
Output Isolation
All outputs are fully isolated.
Power Fail Signal
Upon AC input voltage removal, the power fail signal drops
to logic zero at least 5msec before loss of DC output. On
AC input turn-on, signal remains low until outputs are in
regulation. Consult the factory for other options.
N+1 Load Share
Output #1 has active load sharing circuitry. Units will load
share within 1.5% of Maximum Rated Load.
Over Temperature Protection
Thermal switch turns off power supply if overheating occurs
and automatically restarts.
Safety
UL Recognized: UL File Number E14675 (1950 & 1012)
CSA Certified:
CSA File Number LR 9070-154C
(C22.2 No. 234-M90, Level 6)
TUV License Number: R9576031 (EN60950) (IEC950)
Cooling
The unit is designed to operate with 30 CFM of airflow.
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