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Switching Regulated Power Supplies (to 288 watts)
Power Factor Correction and Universal Input
AC-DC single output
(accepts either AC or DC input)
- Shipped Within 3 Days
- U.L. Recognized (3.3v to 48v models)
- UL508 Listed units available
- CE Certified (3.3v to 48v models)
- Five Year Warranty
SPECIFICATIONS
Input Voltage Range: 90-265 VAC, 49-420 Hz, single phase, or 110-350 Vdc. DC input may be connected without regard to polarity.
Inrush current: Cold start, (thermistor limiter) 20A peak @115 VAC; 40A peak @ 230 VAC.
Startup Time: 800 mS typical.
Input Undervoltage: An input of less than 90 VAC will not damage power supply.
Power Factor: 0.99 (typical) at 115 VAC, 60 Hz and full load. Complies with EN61000-3-2.
Load Regulation: ±0.05% or 5 mV, whichever is greater.
Line Regulation: ±0.05% or 5 mV, whichever is greater.
Output Voltage Remote Adjustment: The output voltage may be controlled by means of an external 1K potentiometer.
Polarity: Output is floating and may be used in either polarity.
Drift: ±0.1% maximum over 8 hours, after 30 minute warmup.
Temperature Coefficient: ±0.02%/°C (Typical).
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%.
Remote Sensing: Compensates up to 0.5 volt drop per output line, within the limits of the output voltage adjustment range.
Overload/Short Circuit Protection: Current limiting with automatic recovery.
Overvoltage Protection: Latches power supply OFF, reset by momentarily removing AC input power.
Output Inhibit: Applying between +3 and +25 Vdc to the inhibit terminal will disable the supply.
EMI: Complies with FCC Part 15 and EN55022, Class A.
Output Indicator (DC on): Green LED.
Thermal Protection: Thermostat, self-resetting.
Efficiency: See Output Specs. (Typical, at nominal input voltage, with full load.)
Ambient Operating Temperature: 0 to +71°C.
Storage Temperature: –40 to +85°C.
Cooling: Forced air cooled; air enters rear of power supply and exits from top.
Switching Frequency: 100 kHz (Typical).
Dielectric Withstand Voltage Isolation --------------------------------------------- Input to output: 4242 Vdc 300 Vdc Input to case: 2121 Vdc 300 Vdc Output to case: 750 Vdc 300 Vdc
Internal Failure Protection: Provided by internal fuse.
Size and Weight:
Case | Rough | Number of fans | Approx.
Size | Dimensions (inches) | on rear panel | Weight
-------|---------------------|--------------------|--------------
WN8 1.7 x 3.5 x 9.8 2 2 lb. 2 oz.
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WN8A 1.7 x 3.5 x 9.8 1 1 lb. 14 oz.
(centered on rear)
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See Drawing for exact dimensions.
Mounting: Threaded mounting holes permit mounting to a chassis, cabinet wall or bracket. To mount from the power supply side of the mounting surface or for DIN rail mounting, use accessory Mounting Kits.
