OUTPUT SPECIFICATIONS

Voltage set point

-46.5V ±0.50V

Total regulation

Main output

±5.0%

(Full load to no load)

Auxiliary output

±2.5%

Rise time

At turn-on

3.0s, max.

Transient response

Main output

3V max. dev.,

50% to 100%

1ms recovery

step at 1.0A/µs

to 1.0%

Ripple and noise

Main output

480mV pk-pk,

0Hz to 30MHz (Note 5)

Auxiliary output

50mV pk-pk

Overvoltage protection

latching

-55V to - 60V

Output power limit

950W

Short circuit protection

Cyclic operation

Auto recovery

Current sharing

3V droop, 1/3 Load

±10% sharing

to full load

above 5A load

INPUT SPECIFICATIONS

Input voltage range

90 to 264VAC

Input frequency range

47Hz to 63Hz

Input surge current

220VAC, cold start @ 25°C

36A typ.

Input surge

300VAC

20ms

Safety ground

120VAC, 60Hz

0.2mA

leakage current

230VAC, 50Hz

0.4mA

Input current

90VAC, 950W

14A rms max.

Input fuse

UL, IEC approved

250VAC, 20A

Power factor

110VAC

0.99

220VAC

0.98

DPF950 SERIES

Dual output

[ 2 YEAR WARRANTY ]

• 950W front end

• EN61000-3-2 compliant

• 12.75 x 8.0 x 4.93 inch (including panel)

• Hot-pluggable, N+1 redundancy

• Full set of status signals

• EN55022, EN55011 conducted emissions level B

• UL, VDE, CSA and BABT safety approvals

The DPF950 is a 950W universal input AC/DC front end power supply in a fully

enclosed hot pluggable case with built-in fan, front panel with handle, IEC input

connector, on/off switch and DIN output signal connector. Providing dual 48V

and 5V outputs with a full set of status signals, the DPF950 is designed as a

slot-in front end for distributed power systems. The DPF950 provides 950W of

output power and is fully compliant with EN61000-3-2. Standard features

include current sharing and full protection against overvoltage, overload and

short circuit. Remote or local system monitoring is possible via a full set of

status signals that include fan fail, DC good, remote inhibit and current

monitoring. The DPF950, with full international safety approval and the CE mark,

meets conducted emissions EN55022 level B. The DPF950 is designed for use

as a front end in medium power communication applications adopting

distributed power architecture. The DPF950 can be used in conjunction with our

complete range of 3 to 200W DC/DC converters to fully configure a distributed

power system.

PAGE 1

EMC CHARACTERISTICS

Radiated noise

EN55022/11, FCC part 15

Level A

Conducted noise

EN55022/11

Level B

FCC part 15

Level A

Harmonic current emm. EN61000-3-2

Compliant

Electrical fast

EN61000-4-4

Level 3

transients/bursts

Surge susceptibility

EN61000-4-5

Level 3

GENERAL SPECIFICATIONS

Hold-up time

120VAC, 60Hz FL

20ms @ 950W

Efficiency

90Vin, >66% rated load

78% min.

Isolation voltage

Input/output

3000VAC

Input/chassis

1500VAC

Switching frequency

50kHz

Approvals and

VDE0805, EN60950, IEC950

standards

UL1950, BABT

CSA C22.2 No. 950

Weight

6.4kg (14Ibs)

MTBF

MIL-HDBK-217F

100,000 hours

@ 25°C

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating ambient, FL

0°C to +50°C

Non-operating

-40°C to +70°C

50°C to 70°C ambient,

Derate to

convection cooled

50% load

Cooling

Built-in fan

Relative humidity

Non-condensing

5% to 85% RH

Altitude

Operating

10,000 feet max.

Non-operating

40,000 feet max.

Vibration

5Hz to 500Hz

2.4G rms peak

Shock

MIL-STD-810E

516.4 Part IV