Agency Approvals

UL1950.CSA 22.2 NO. 234/950.EN60950 (TÜV)

Altitude Non-Operating

40k ASL Ft

Altitude Operating

10k ASL Ft

Brown Out Protection

80 min VAC/Lowest AC input voltage that regulation is maintained with full rated loads

Current Share

10%

Current Share Accuracy

Accuracy of shared current with up to 6 parallel units. Single-wire current share on V1 and V2 with return via vegative (-) Sense return. Minimum current share load is 6A or 50W, whichever is smaller

Dielectric Withstand Voltage

Input to Output per EN60950/ 2600 min VDC

Efficiency

Full rated load/110 VAC Varies with distribution of loads among outputs/65% min 75% Nom

EFT/Burst

Per EN61000-4-4, level 4, ± 4 kV

Electromagnetic Interference

FCC CFR title 47 Part 15 Sub-Part B - Conducted.EN55022 / CISPR 22 Conducted

ESD Susceptibility

Per EN61000-4-2, level 4, 8 kV

Fan

10.00” x 4.75” x 2.50”(250.4mm x 120.7mm x 63.5mm)

Hold-up Time

20 min ms/after last AC line peak at 250 watts

Inhibit

Output voltage is inhibited by application of external high (5V) signal

Input Current

85 VAC at full rated load/4.5 Arms

Input Frequency

47 min/63 max HZ/AC Input

Input Power

5 ms

Input Power Fail Warning

TTL compatible logic signal. Time before regulation dropout due to loss of input Fail Warning power. May be used as independent PSOK signal in redundant applications

Input Protection

Non-user serviceable internally located AC input line fuse

Input Transient Protection

Per EN61000-4-5 level 3/Line-to-line:1 kV/line-to-ground:2 kV

Input Voltage-AC

85 min 264 Max VAC/Continuous Input

Inrush Surge Current

Vin

Insulation Resistance

Input-to-Output/10 M

Leakage Current

Per EN60950, 264 VAC/1500 A

load setting from minimum to maximum load

Output Parameter

Metric Mounting

8.50" x 4.75" x 2.00"(215.9mm x 120.7mm x 50.8mm)

Minimum Load V1

Minimum load required to maintain regulation on V2/Single output models 0min amps/All other models 4min Amps

Minimum Load V3

Minimum load required to maintain regulation on V4/Single output models N/A/PFC250-4000 1.25min amps/All other models 0.6min amps

Operating Frequency

Switching Frequency of main output transformer 129Nom kHz/Switching frequency of secondary transformer 70Nom kHz/Switching frequency of Power Factor Correction circuit 60Nom kHz

Operating Temperature

At 50% load: 70 °C,Derate linearly above 50°C by 2.5% per °C

Output Good

TTL compatible signal. Signal is high when V1 output is 3.3V 3.16 V within 5% of nominal. Signal shall remain low for 20 5V 4.75 milliseconds following loss of Output Good

Output Good 3.3 V

3.26 Min

Output Good 5 V

4.75 Min

Output Power

300 LFM forced-air cooling/250 Watts

Overload Protection

Fully protected against output overload and short circuit. Automatic recovery upon removal of overload condition

Overshoot/Undershoot

Output voltage overshoot/undershoot at turn-on 0%

Overtemperature Protection

System shutdown due to excessive internal temperature, automatic reset

Overvoltage Protection 12V output, V1/V2

14.0 min/16.0 max/Latch Style

Overvoltage Protection 15V output, V1

18.3 min/19.8 max/Latch Style

Overvoltage Protection 24V output, V1

27.0 min/30.7 max/Latch Style

Overvoltage Protection 3.3V output, V1

4.1 min/4.65 max/Latch Style

Overvoltage Protection 3.3V output, V2

4.2 min/4.2 max/Latch Style

Overvoltage Protection 48V output, V1

60.0 min/70.0 max/Latch Style

Overvoltage Protection 5V output, V2

6.0 min/6.4 max/Latch Style

Power Factor

Per EN61000-3-2/0.95min W/VA

Radiated Susceptibility

Per EN61000-4-3, level 3, 10 V/M

Regulation

Varies by output/total regulation includes: line changes over the specified input range/changes in load starting at 20% load and changing to 100% load

Relative humidity

Non-Condensing,5-95 %RH

Remote Sense

250 mV

Remote Sense Availability

Available on V1 and V2. Total voltage compensation for cable losses with respect to the main output

Ripple and Noise

Full load 20 MHz bandwidth

Shock

Peak acceleration

Standby Power

100 mA

Storage Temperature

-55,+85 °C

Temperature Coefficient

0°C to 70°C (after 15 minute warmup)/± 0.02 ± 0.05 %/°C

Transient response

Recovery time to within 1% of initial set point due to a 25% step load from any 500 s

Turn-on Delay

Time required for initial output voltage stabilization/2Sec Nom

Turn-on Rise Time

Time required for output voltage to rise from 10% to 90%/20ms Nom

Vibration

Random vibration, 10 Hz to 2 kHz, 3 axes, 6 GRMS