Data Sheet

Input Fuse
There is a fuse connected in series to the positive input line, which is used to protect against abnormal surge. Fuse specifications
of each model are shown as below.
Type Fuse Type Reference and Rating
Input Under-Voltage Protection
If input voltage drops below Vimin, the internal control IC shuts down and there is no output voltage. It recovers automatically
when input voltage reaches above Vimin,please refer to the cruve below.
DDR-120A-24 DDR-120B-24
DDR-120C-24 DDR-120D-24
A
B
C
D
Time-Lag
Conquer MST, 8A, 250V *2
Conquer MST, 8A, 250V *1
Conquer MST, 4A, 250V *1
Time-Lag
Time-Lag
Time-Lag
Conquer MST, 10A, 250V *2
33.6
0
5
10
15
20
25
30
31 33 34 35 36
Turn On
Turn Off
Vin
Vo
0
5
10
15
20
25
30
8 9 10 15 16 17
Turn On
Turn Off
Vin
Vo
85.
16.8
0
5
10
15
20
25
30
15 16 17 18 19 20
Turn On
Turn Off
Vin
Vo
16 5.
37
67.2
0
5
10
15
20
25
30
65 66 67 68 69
Turn On
Turn Off
Vin
Vo
70
65
DDR-120 series
120W DIN Rail Type DC-DC Converter
File Name:DDR-120-SPEC 2019-08-02