WRA480 SERIES
3PH AC - DC DIN RAIL MOUNTABLE
480W
INDUSTRIAL CONTROL EQUIPMENT
FEATURES
3 PHASE AC INPUT VOLTAGE
COMPACT DESIGN
HIGH EFFICIENCY UP TO 91%
PARALLEL FUNCTION AVAILABLE (SWITCH)
SELECTION CHART
WRA 480 - 24
Wattage
24 : 24V OUT
48 : 48V OUT
MODEL LIST
MODEL NO.
INPUT
VOLTAGE
3o 340~575VAC
3o 340~575VAC
OUTPUT
OUTPUT
WATTAGE VOLTAGE
Single Output Models
480 WATTS
480 WATTS
+ 24 VDC
+ 48 VDC
OUTPUT
CURRENT
20A
10A
EFF.
(min.)
88%
89%
EFF.
(typ.)
90%
91%
WRA480-24
WRA480-48
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25
o
C Unless Otherwise Noticed
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
2.5
+ 85
95
o
o
C
C
%/ C
o
% RH
mm
L123.6 x W150 x D118.2
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2008.08.13
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WRA480 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
Vi : 500VAC, Io nom
AC IN
DC IN
Vi : 380VAC
Vi : 500VAC
47
20
0.7
400
340
480
1.4
1.0
63
Conditions
min.
typ.
max.
500
575
820
unit
VAC
VAC
VDC
A
A
Hz
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
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
100
unit
%
%
%
%
%
% /
o
C
mV
ms
VDC
VDC
VDC
VDC
VDC
VDC
unit
Minimum load
Line regulation
Load regulation
Temperature coefficient
Ripple & noise
Hold up time
Voltage trim range
16
20
22.5
47
17.6
37
17.6
37
Up to 91%
28.5
56
19.4
43
19.4
43
2
DC ON indicator
threshold at start up
DC LOW indicator
threshold after start up
Parallel operation
Efficiency
Vi nom, Io nom
CONTROL AND PROTECTION
Characteristics
Input fuse
Rated over load protection
Power Rdy
(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.
135
19.4
0.3
unit
%
VDC
VDC
A
V
V
T3.15A / 500VAC internal / phase
Over voltage protection
Vi nom, Io nom
24V model
48V model
Continuous
Discontinuous
30
60
33
68
Output short circuit
Over temperature
Vi nom
Current limited
Delay 3S shut-down, After 30S Auto-restart
100
110
o
Detect on heatsink, shut down O/P
voltage, recovers automatically after
temperature goes down.
C
*1. Single phase input is permissible, but output is derated to 75%.
www.chinfa.com
2008.08.13
sales@chinfa.com
WRA480 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 WRA480 series
L1
L2
L3
Fuse1
Fuse2
Fuse3
Filter
X
X
X
Vo +
Bridge
Rectifier
Filter
P
.F.C
Circuit
Switching
Device
Rectifier
Current
Detection
Filter
Vo -
Single / Parallel
Select
Vout ADJ.
Y
PWM
Controller
Opto -
Isolation
Opto -
Isolation
Reference &
Error Amp.
Over Voltage
Detection
Continuous /
Discontinuous
M.C.U
DC ON
DC LOW
RDY
PHYSICAL CHARACTERISTICS
CASE SIZE
SCREW TERMINAL TYPE
123.6 x 150 x 118.2 mm (4.87 x 5.91 x 4.65 inches)
1750g
WEIGHT
DERATING
100
Power out [ % ]
75
0
-25
Temperature [
o
C ]
61
71
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2008.08.13
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WRA480 SERIES
MECHANISM & PIN CONFIGURATION
mm [inch]
111.3 [4.38]
106.6 [4.2]
6.9 [0.27]
WRA480
CHINFA
Chinfa Electronics ind. Co., Ltd.
ISO 9001 Certified
IND.CONT.EQ.
E196362
2JF4
Continuous
Discontinuous
3PH 400~500 VAC
1.4 phase 47-63Hz
L1 L2 L3
24 VDC / 20A
Single
Parallel
Rdy
DC
LO
DC
ON
+ +
5
8
150.00 [5.91]
1
4
123.60 [4.87]
CONSTRUCTION
9,10
RDY
C/D
S/P
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
Designation
V+
Description
Positive output terminal
Positive output terminal
Negative output terminal
Negative output terminal
Ground this terminal to minimize high-frequency emissions
Input terminals
Input terminals
Input terminals
A normal open relay contact for DC ON level control
(Never connect except 24V model)
Operation indicator LED
DC LOW voltage indicator LED
Trimmer-potentiometer for Vout adjustment
Single / Parallel select switch
Continuous / Discontinuous
3
4
5
7
8
10
9
6
OUT
2
V+
V -
V -
L1
L2
L3
RDY
RDY
DC ON
DC LO
Vout ADJ.
S/P
C/D
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2008.08.13
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OUT
IN
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