WRA960 SERIES
3PH AC - DC DIN RAIL MOUNTABLE
960W
INDUSTRIAL CONTROL EQUIPMENT
FEATURES
3 PHASE AC INPUT VOLTAGE
COMPACT DESIGN
HIGH EFFICIENCY UP TO 93%
PARALLEL FUNCTION
SELECTION CHART
WRA 960 - 24
Wattage
24 : 24V OUT
48 : 48V OUT
MODEL LIST
MODEL NO.
INPUT
VOLTAGE
3o 340~575VAC
3o 340~575VAC
3o 340~575VAC
OUTPUT
OUTPUT
WATTAGE VOLTAGE
Single Output Models
960 WATTS
960 WATTS
960 WATTS
+ 24 VDC
+ 24 VDC
+ 48 VDC
OUTPUT
CURRENT
40A
40A
20A
EFF.
(min.)
90%
90%
91%
EFF.
(typ.)
92%
92%
93%
WRA960-24
WRA960-24L
WRA960-48
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed
o
GENERAL
Characteristics
Isolation voltage
Isolation resistance
Ambient temperature
Derating
Storage temperature
Relative humidity
Dimension
Cooling
Case material
Conditions
Conditions
Input / Output
Input / Output, @ 500VDC
Operating at Vi nom
Vi nom, from +61 to +71 C
Non operational
Vi nom, Io nom
Screw terminal type
Free air convection
Metal
o
min.
min.
3,000
100
-25
-25
20
typ.
typ.
max.
max.
unit
unit
VAC
M
+ 71
3.5
+ 85
95
o
o
C
C
%/ C
o
% RH
mm
L125.9 x W275.8 x D118.2
www.chinfa.com
2008.08.13
sales@chinfa.com
WRA960 SERIES
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25
o
C Unless Otherwise Noticed
INPUT SPECIFICATIONS
Characteristics
Nominal Voltage
*1
Rated input voltage
Input voltage range
Rated input current
Line frequency
Inrush current
P F. C.
.
Io nom
Ta min ... T max,
a
Io nom
Io nom
Vi nom, Io nom
Vi nom, Io nom, cold start -24, -48 Models
-24L Model
Vi : 500VAC, Io nom
AC IN
DC IN
Vi : 380VAC
Vi : 500VAC
47
30
50
0.7
400
340
480
2.4
1.6
63
Conditions
min.
typ.
max.
500
575
820
unit
VAC
VAC
VDC
A
A
Hz
A
A
1o or 3o 380 / 480 VAC
OUTPUT SPECIFICATIONS
Characteristics
Output voltage accuracy
(Adjusted before shipment)
Conditions
Vi nom, Io max
Vi nom
Io nom, Vi min ...Vi max
Vi nom,
Io min ...Io nom
Vi nom, Io min
Vi nom, Io nom,BW = 20MHz
Vi nom, Io nom
Vi nom, Io nom
400VAC
500VAC
24V model
48V model
24V model
48V model
Vi nom, Io nom
0.9 Io max
Vi nom, Io nom, Po / Pi
24V model
48V model
single mode
parallel mode
min.
-0
0
typ.
max.
+ 1
1
1
5
0.02
80
unit
%
%
%
%
%
% /
o
C
mV
ms
ms
Minimum load
Line regulation
Load regulation
Temperature coefficient
Ripple & noise
Hold up time
Voltage trim range
14
28
22.5
47
17.6
37
17.6
37
Up to 93%
15
30
28.5
56
19.4
43
19.4
43
2
VDC
VDC
VDC
VDC
VDC
VDC
unit
DC ON indicator
threshold at start up
DC LOW indicator
threshold after start up
Parallel operation
*2
Efficiency
Vi nom, Io nom
CONTROL AND PROTECTION
Characteristics
Input fuse
Rated over load protection
Power Rdy
*2
(for 24V model only)
Vi nom
Threshold voltage of contact closed(at start up)
Electrical isolation
Contact rating at 60VDC
Conditions
min.
110
17.6
500
typ.
max.
130
19.4
0.3
unit
%
VDC
VDC
A
V
V
T5A / 500VAC internal / phase
Over voltage protection
Output short circuit
Over temperature
Vi nom, Io nom
(Shut down O/P voltage, re-power
on to recover)
24V model
48V model
30
60
33
68
Vi nom
Detect on heatsink, shut down O/P
voltage, recovers automatically after
temperature goes down.
Current limited
100
110
o
C
*1. Single phase input is permissible, but output is derated to 75%.
www.chinfa.com
2008.08.13
*2. 24L model no this function.
sales@chinfa.com
WRA960 SERIES
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25
o
C Unless Otherwise Noticed
APPROVALS AND STANDARDS
UL / cUL
TUV
CE
UL508 Listed, UL60950-1 Recognized
EN60950-1
EN61000-6-3, EN55022 class B
EN61000-3-2, EN61000-3-3
EN61000-6-2, EN55024
EN61204-3
CIRCUIT SCHEMATIC
Block diagram for WRA960 series
L1
L2
L3
Fuse1
Filter Fuse2
Fuse3
Vo +
Bridge
Filter
Rectifier Filter
X
X
X
P
.F.C
Circuit
Switching
Device
Rectifier
Current
Detection
Vo -
PWM
Controller
Y
Reference &
Error Amp.
Parallel
Controller
Vout ADJ.
Parallel
Bias
Power
Output
Level
Detection
DC ON
DC LOW
RDY
PHYSICAL CHARACTERISTICS
CASE SIZE
SCREW TERMINAL TYPE
125.9 x 275.8 x 118.2 mm (4.96 x 10.86 x 4.65 inches)
3.2kg
WEIGHT
DERATING
100
Power out [ % ]
65
0
-25
61
Temperature [
o
C ]
71
www.chinfa.com
2008.08.13
sales@chinfa.com
WRA960 SERIES
MECHANISM & PIN CONFIGURATION
mm [inch]
275.8 [10.86]
111.30 [4.38]
106.60 [4.20]
6.90 [0.27]
WRA960
125.90 [4.96]
CHINFA
Chinfa Electronics ind. Co., Ltd.
ISO 9001 Certified
R
IND.CONT.EQ.
E196362
2JF4
CONSTRUCTION
Easy snap-on mounting onto the DIN-Rail
(TS35/7.5 or TS35/15), unit sits safeIy and
firmly on the rail.
INSTALLATION
Ventilation / Cooling
Normal convection
All sides 25mm free space
For cooling recommended
Connector size range
10-24AWG flexible / solid cable,
8 m/m stripping at cable end recommends
PIN ASSIGNMENT
PIN NO.
1
2
3
4
Designation
RDY
RDY
P
G
Description
A normal open relay contact for DC ON level control
(Never connect except 24V model)
Parallel PIN for current share
Parallel GEN PIN for current share
Positive output terminal
Positive output terminal
Positive output terminal
Negative output terminal
Negative output terminal
Negative output terminal
Ground this terminal to minimize high-frequency emissions
Input terminals
Input terminals
Input terminals
Operation indicator LED
DC LOW voltage indicator LED
Trimmer-potentiometer for Vout adjustment
6
7
8
9
10
11
13
14
12
OUT
5
V+
V+
V+
V -
V -
V -
L1
L2
L3
DC ON
DC LO
Vout ADJ.
* WRA960-24L without PIN 1, PIN 2, PIN 3, PIN 4.
www.chinfa.com
2008.08.13
OTHER
IN
sales@chinfa.com
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