Input Specifications
Parameter
Conditions
Min
Typ
Max
Units
Operating Range
47-63 Hz
90
264
VAC
Inrush Current Limiting
120VAC, cold start
240VAC, cold start
30
70
APK
APK
Efficiency
120VAC, full load
240VAC, full load
70%
75%
Power Factor Correction (PFC)
0.99
Meets IEC 1000-4-7/EN61000-2-3 (formerly IEC 555-2)
N+1 Load Share
Remote Sense
Output #1 has active load sharing circuitry. Units will load
share within 1.0% of Maximum Rated Load.
Remote Sense is provided on Output #1 and will com-
pensate for 1.0V of line drop. Remote Sense leads are
protected against open, short and reversal.
Power Fail Signal
Upon AC input voltage removal, the power fail signal
drops to logic zero at least 5msec before loss of DC
output. Upon AC input turn-on, signal remains low until
outputs are in regulation. Consult the factory for other
options.
Remote On/Off (Optional)
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 Temperature Protection
Over Voltage Protection
Internal thermal switch turns off power supply if over-
heating occurs and automatically restarts. Automatic
restart when temperature drops below threshold.
Output #1: 6.5V, 0.5 VDC
The power supply will latch off until AC power is cycled.
Over Current Protection
Individual current limit on all outputs. Automatic recovery
Safety
UL Recognized:UL File Number E14675 (1950 & 1012)
CSA Certified: CSA File Number LR 9070-154C
(C22.2 No9. 234-M90, Level 6)
upon fault removal.
Transient Response
The peak output voltage excursion will not exceed 2% and
TUV License Number: R9576030 (EN60950) (IEC950)
will recover within 1% in 400 µsec for a 25% step load.
Cooling
Output Isolation
The unit is designed to operate with 40 CFM of airflow.
All outputs are fully isolated.
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PX500 1/98 REV A
