400 WATTS

    NO MINIMUM ORDER REQUIRED

NXT-400 SERIES

     

 OUTPUT SPECIFICATIONS  
Features
  • RoHS Compliant
  • 2 Year Warranty 
  • High Efficiency, 85% typical 
  • High Power Density,8.5 W/cu in. 
  • Compact 3.9" X 8.0" X 1.5" Size
  • EN 60950-1 ITE Certification 
  • EN 60601-1 Medical Certification 
  • EMC to EN 61000-6-2 & EN 60601-1-2 
  • Advanced SMT Design 
  • Optional Chasis & Cover  
  • Optional Single Wire Load Sharing
  • Optional Remote Inhibit/Enable

Total Output Power at 50C

225w    Convection Cooled, Open Frame                             400W 300 LFM Forced Air, Open Frame

Power Derating 2.5 Wout / 1Vin below 100 Vin
Voltage Centering +/-0.5% (50% Load)
Voltage Adjust Range

 95-105%

Load Regulation  0.5% (0-100% load change)
Source Regulation  0.5%
Noise 1.0% or 100mV Whichever is greater
Transient Response Output recovers to within 1% of initial set point due to a 50% step load change, 500uS maximum, 4% maximum deviation.
 
Turn on Overshoot  None
Overvoltage Protection Latching, between 110% and 150% of rated output voltage.
Overpower Protection 110-130% rated Pout, cycle on/off, auto recovery
Hold Up Time 16 mS min., Full Power, 85-264V Input
Start Up Time 3 Seconds, 120V Input
SAFETY SPECIFICATIONS  
   INPUT SPECIFICATIONS  
General   Protection Class:

I

Overvoltage Category:

II

Pollution Degree:

2

 

 

Underwriters
Laboratories
File E137708/E140259

 

UL 60950-1 First Edition             UL 60601-1           First Edition

CB Report per IEC 60950-1(2001)       First Edition             All National Deviations           CB Certificates per IEC 60601-1(1988)  Second Edition A1, A2

 
UL Recognition Mark for Canada
File E137708/E140259

CAN/CSA-C22.2 No. 60950-1-03   CAN/CSA-C22.2 No. 601-1-M90             with updates 1 and 2

 
TUV EN 60950-1:2001
EN 60601-1/A2: 1995
 
  Low Voltage Directive  
 

GENERAL SPECIFICATIONS

Deilectric Strength:  

Reinforced Insulation

5656 VDC,Primary to Secondary,1 Sec.
Basic Insulation 2545 VDC,Primary to Ground,1 Sec.
Operational Insulation 707 VDC,Secondary to Ground,1 Sec.
Leakage Current        <300uA Earth Leakage Current
Power Fail Signal Logic low with input power failure 10 ms minimum prior to output 1 droppping 1%.

Remote Inhibit (optional)

Isolated. Contact closure inhibits output.
Load Share (optional) Single wire current sharing with return via negative sense return. Minimum current share load is 10% of each module's output current rating. Maximum output voltage deviation between modules is 5% for 2.5 through 5V models and 400mV for remaining models.
Standby Power (optional) Isolated 5Vdc +/- 10%,10mA available only with Remote Inhibit option.
Remote Sense 400mV compensation of output cable losses
Mean-Time Between Failures 100,000 Hours min.,MIL-HDBK-217F,25 C,GB
Weight 2.65 Lbs  Open Frame      3.60 Lbs  Chassis and Cover
S

ELECTROMAGNETIC COMPATIBILITY SPECIFICATIONS

Electrostatic Discharge

EN 61000-4-2 

+/-6kVContact Discharge             +/-8kV Air Discharge

Radiated Electro-magnetic Field

EN 61000-4-3

80-2500MHz, 10V/m, 80%AM

EFT/Bursts

EN 61000-4-4  

 +/-2kV

Surges

EN 61000-4-5

 +/-2kV Line to Earth                   +/-1kV Line to Line

Conducted Immunity

EN 61000-4-6

 .15-80MHz., 10V, 80% AM

Voltage Dips

EN 61000-4-11

95% Dip,10ms     30% Dip,500ms 60% Reduction, 1s (Criteria B)

 

 

 

Voltage Interruptions

EN 61000-4-11

95% Reduction,5s

Radiated Emissions

EN 55011/22, FCC Part 15

Class B

Conducted Emissions EN 55011/22, FCC Part 15 Class B
Harmonic Current Emissions EN 61000-3-2 Compliance
Magnetic Field Immunity EN 61000-4-8 30A/m, 50/60Hz.
Voltage Fluctuations and Flicker EN 61000-3-3 Compliance
Power Factor EN 61000-3-2 Compliance
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Source Voltage

85-264 Volts AC, 120-370 Volts DC                                       

 

 

 

 

Frequency Range 47-63 Hz
Input Protection Internal 10A Time Delay fuse
Peak Inrush Current 50A (cold)
Efficiency 85% Typical, Full Power varies by model
Power Factor 0.95 (Full Power,230V),  0.98(Full Power, 120V)

ENVIROMENTAL SPECIFICATIONS

Ambient Operating

00C to + 700C

 

 

Temperature Range

Derating:See Power Rating Chart

Thermal Shutdown

Output voltage is inhibited during excessive internal temperatures, automatic reset.

Ambient Storage Temp. Range

-40oC to +85oC

Operating Relative Humidity Range

20-90% non-condensing

Altitude

10,000ft. ASL Operating 40,000ft. ASL Non-operating

Temperature Coefficient

0.02%/oC

Vibration

2.5g, 10Hz.-2KHz per MIL-STD-810F Method 514.5  

Shock 20g, peak per MIL-STD-810F Method 516.5
 ORDERING INFORMATION  

Please specify the following optional features when ordering:
C - Chassis                   CO -Cover            
RI - Remote Inhibit                

LS - Single Wire Load Sharing                         LSEVB - Load Share Evaluation Board  

All specifications are maximum at 25O C unless otherwise stated and are subject to change without notice.

CONNECTOR SPECIFICATIONS
 AC Input Terminal block with 6-32 screws on 0.325 centers mates with #6, spade terminals. (8in-lb max)

 

 

 

DC Output

10-32 screw down terminal mates with #10 ring tongue terminal.(10 in-lb Max)

 
Load Share,Sense

.100 friction lock header mates with Molex 22-55-2081 or equivalant crimp terminal housingwith Molex 71851 or crimp equivalent terminal.

 
Power Fail .100 friction lock header mates with Molex 22-55-2041 or equivalent crimp terminal housing with Molex 71851 or equivalent crimp terminal.  
Inhibit, Standby Power .100 friction lock header mates with Molex 22-55-2041 or equivalent crimp terminal housing with Molex 71851 or equivalent crimp terminal.  
  
Ground .187 quick disconnect terminal.

 MODEL LISTING
Model OPEN 300 LFM FRAME CONVECTION CHASSIS/ 300 LFM COVER CONVECTION
COOLED COOLED
NXT-400-1001 2.5V/80.0A 2.5V/45.0A 2.5V/72.0A 2.5V/40.5A
NXT-400-1002 3.3V/80.0A 3.3V/45.0A 3.3V/72.0A 3.3V/40.5A
NXT-400-1003 5V/80.0A 5V/45.0A 5V/72.0A 5V/40.5A
NXT-400-1004 12V/33.3A 12V/18.8A 12V/29.9A 12V/16.9A
NXT-400-1005 15V/26.7A 15V/15.0A 15V/24.0A 15V/13.5A
NXT-400-1006 24V/16.7A 24V/9.4A 24V/15.0A 24V/8.5A
NXT-400-1007 28V/14.3A 28V/8.0A 28V/12.8A 28V/7.2A
NXT-400-1008 48V/8.3A 48V/4.7A 48V/7.5A 48V/4.2A
NXT-400 SERIES MECHANICAL SPECIFICATIONS

 APPLICATIONS INFORMATION
  1. Sufficient area must be provided around power supply to allow natural movement of air to develop in convection cooled applications.
  2. 300 linear feet per minute (minimum) of airflow must be maintained along all outside surfaces of exposed heatsinks or chassis. See recommended air flow diagram as a guideline.
  3. Generally, adequate cooling is provided when semiconductor case temperatures do not exceed 75o C rise and transformer temperature does not exceed 80o C rise at any specified ambient temperature.
  4. This product is intended for use as a professionally installed component within information technology, industrial and medical equipment and is not intended for stand alone operation. Common RF shielding precautions may need to be taken to assure emissions compliance. Refer to operating instructions for additional information.
  5. This product includes only one fuse in the input circuit. In consideration of clause 57.6 of UL 60601-1, a second fuse may be required in the end  product.
  6. Low forward voltage drop oring diodes must be used in all load sharing applications in 2.5 through 15 Volt models. Oring diodes must be used on 24 through 48 Volt models used in fault tolerant applications but are optional in power boosting applications. Oring diode power dissipation must be subtracted from the maximum output power rating of each model.
  7. Current carrying conductors in load sharing applications must be short and symmetrical. Remote sense conductors should be a twisted pair. The use of an appropriately rated low impedance capacitor across the load will increase noise immunity.
  8. Refer to Load Share Evaluation Board data sheet (page 58) for additional load share applications information.
  9. Remote sense terminals may be used to compensate for cable losses up to 400 mV depending on model. The use of a twisted pair, decoupling  capacitors and an appropriately rated low impedance capacitor connected across the load will increase noise immunity.
  10. A load equal to 5% rated output power must be maintained when using standby power option. An external electrolytic capacitor across standby power output may be used to improve transient response.
  11. Peak to peak output ripple and noise is measured directly at the output terminals of the power supply, without the use of the probe ground lead or retractable tip, 20 MHz bandwidth.
  12. This product was type tested and safety certified using the dielectric strenght test voltages listed in Table V of UL 60601-1. In consideration of Clause 20.4g, care must be taken to insure that the voltage applied to a reinforced insulation does not overstress basic insulation. Secondary to ground capacitors may need to be removed prior to performing a dielectric strenght type test on the end product. It is highly recommended that the DC test Voltages listed in DVB.1, Annex DVB are not exceeded during a production-line dielectric strength test of the assembled end product. Please consult factory for further information.
  13. This power supply has been safety approved and final tested using a DC dielectric strength test. Please consult factory before performing an AC dielectric strength test.
  14. Maximum screw penetration into bottom chassis mounting holes is .100 inches.
  15. Maximum screw penetration into side chassis mounting holes is .150 inches.
  16. To comply with emissions specifications, all five mounting hole pads must be electrically connected to a common metal chassis. Chassis/cover option recommended and should be grounded.

 Maximum Output Power vs. Ambient Temperature

Derating requirements- The chart above applies to models 1003 through 1008 only. 400 Watts with 300 LFM forced air, open frame. 225 Watts convection cooled, open frame. Derate 10% with chassis and cover. Derate 2.5 Wout/1 Vin below 100 Vin between 100 Vin and 85 Vin. Use larger of the two deratings when using chassis/cover below 100 Vin. Derate output power linearly to 50% between 50o C and 70o C.

 TYPICAL LOAD SHARE/REMOTE SENSE APPLICATION  

   
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Integrated Power Design Inc.
Phone: 570-824-4666 Fax: 570-824-4843
300 Stewart Road, Wilkes Barre, PA 18706

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