FOR DC BACKUP SYSTEM
DRAN120 SERIES
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25
o
C Unless Otherwise Noticed
CONTROL AND PROTECTION
Characteristics
Input fuse
Rated over load protection
Over voltage protection
Output short circuit
Vi nom
Vi nom, Io nom
Vi nom, Io nom
105
125
Current limited
Conditions
min.
typ.
max.
125
145
unit
%
%
T3.15A / 250VAC internal
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
CIRCUIT SCHEMATIC
Block diagram for DRAN120 series
L
Fuse
Filter
N
Y
Inrush Current
Limiter,
Rectifier and
Auto Select
115 / 230 Vac
Vo +
P. F. C.
Circuit
Smoothing
Circuit
Switching
Device
Rectifier
Current
Detection
Vo -
PWM
Controller
Opto -
Isolation
Opto -
Isolation
Reference &
Error Amp.
Over Voltage
Detection
Output
Level
Detection
Vout
ADJ.
(Green LED)
(Red LED)
DC ON
DC LOW
(Relay Contact)
PHYSICAL CHARACTERISTICS
CASE SIZE
SCREW TERMINAL TYPE
WEIGHT
123.6 x 63.2 x 123.6 mm 4.87 x 2.49 x 4.87 inches
920g
www.chinfa.com
2008.03.28
sales@chinfa.com
CHINFA [ CHINFA ELECTRONICS IND. CO., LTD. ]
