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Pluggable Redundant Power Supply Packages
using Switching Regulated Power Supplies

AC-DC single output


Input Voltage: 90-265 VAC, 49-420 Hz, single phase.
A separate set of AC input terminals is provided for each power supply, so that if two sources of AC input power are available, one may be used for each supply and so reduce the possibility of output dropout due to loss of input power.

Inrush current: Cold start, (thermistor limiter) 20A peak @115 VAC; 40A peak @ 230 VAC.

Startup Time: 800 mS typical.

Power Factor: 0.99 (typical) at 115 VAC, 60 Hz and full load. Complies with EN61000-3-2.

Remote Sensing: Compensates up to 0.5 volt drop per output line, (1 volt for 50 to 125 volt models), within the limits of the output voltage adjustment range.

Output Voltage:
Normal mode: Nominal voltage shown in table.
Backup mode: 0.2 volt less than nominal voltage shown in table.

Load Regulation: ±0.05% (Dynamic regulation - does not include 0.2 volt shift which occurs during switchover to lower-set backup supply.

Line Regulation: ±0.05%

Load Protection: Overvoltage protection.

Overload/Short Circuit Protection: Current limiting with automatic recovery.

Overvoltage Protection: Automatic recovery.

Polarity: Output is floating; either positive or negative output terminal may be grounded or floated up to 300 volts above ground.

Alarm Relay Contact Ratings: 120 VAC, 8A / 60 Vdc, 1A. (To comply with SELV requirements, limit switched voltage to 60 Vdc / 42 VAC.)

Drift: ±0.1% maximum over 8 hours, after 30 minute warmup.

Holdup Time: 16 mS minimum.

Transient Response: 300 µS to return to ±1% of output setting. Maximum of ±3% output excursion following a load step change from 50% to 100%.

Switching Frequency: 100 kHz (Typical).

Isolation: Input to output, input to case; 500 VAC.
Output to case; 300 VAC

Temperature Coefficient: 0.02%/°C (Typical).

Thermal Protection: Thermostat, self-resetting.

Cooling: Forced-air cooled; air enters front of system and exits from top.

Ambient Operating Temperature: 0 to +71°C.

Storage Temperature: –40 to +85°C.

Terminal Strip Cover: Clips on.