24V model

48V model

Over voltage protection

Vi nom, Io nom

Characteristics

Conditions

min.

typ.

max.

unit

Rated over load protection

110

130

%

Vi nom

Output short circuit

30

33

V

60

68

V

Power Rdy

(for 24V model only)

Threshold voltage of contact closed(at start up)

Electrical isolation

Contact rating at 60VDC

17.6

500

19.4

0.3

VDC

VDC

A

Input fuse

T5A / 500VAC internal / phase

CONTROL AND PROTECTION

Vi nom

(Shut down O/P voltage, re-power

on to recover)

Current limited

Over temperature

Detect on heatsink, shut down O/P

voltage, recovers automatically after

temperature goes down.

100

110

*2

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WRA960 SERIES

o

All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed

SPECIFICATION

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*1. Single phase input is permissible, but output is derated to 75%.

*2. 24L model no this function.

-24, -48 Models

-24L Model

A

50

A

Characteristics

Conditions

min.

typ.

max.

unit

Input voltage range

Io nom

Rated input voltage

Ta min ... Ta max,

Io nom

340

480

P. F. C.

Vi : 500VAC, Io nom

0.7

Line frequency

Inrush current

Vi nom, Io nom

47

Vi nom, Io nom, cold start

Io nom

Rated input current

DC IN

AC IN

Vi : 380VAC

Vi : 500VAC

2.4

575

VAC

VAC

820

VDC

63

Hz

A

A

1.6

A

400

500

30

Nominal Voltage

1o or 3o 380 / 480 VAC

INPUT SPECIFICATIONS

*1

Characteristics

Conditions

min.

unit

Vi nom, Io max

typ.

max.

+ 1

%

%

Minimum load

Line regulation

Vi nom

-0

%

%

Load regulation

Temperature coefficient

Ripple & noise

1

o

% / C

0.02

mV

80

Io nom, Vi min ...Vi max

Vi nom, Io nom,BW = 20MHz

Vi nom, Io nom

Hold up time

Vi nom, Io min

22.5

DC ON indicator

threshold at start up

Vi nom, Io nom

28.5

Voltage trim range

%

1

%

%

Vi nom,

Io min ...Io nom

DC LOW indicator

threshold after start up

Output voltage accuracy

(Adjusted before shipment)

single mode

parallel mode

Vi nom, Io nom

Vi nom, Io nom

0.9 Io max

0

17.6

17.6

5

19.4

19.4

2

VDC

VDC

unit

VDC

Vi nom, Io nom, Po / Pi

Up to 93%

Efficiency

Parallel operation

24V model

48V model

24V model

48V model

24V model

48V model

47

56

VDC

37

43

VDC

37

43

VDC

*2

400VAC

500VAC

OUTPUT SPECIFICATIONS

14

ms

28

ms

15

30

2008.08.13