B
B-1
APPENDIX B - ACCESSORIES
B.1 Non-fuse Circuit Breaker Chart
Recommended by WATT DRIVE Antriebstechnik GmbH (UL 508C, paragraph 45.8.4, part
a)
1. For 1-phase drives, the current rating of the breaker shall be four times maximum of
input current rating.
2. For 3-phase drives, the current rating of the breaker shall be four times maximum of
output current rating.
(Note: According to our experience, we suggest to use 1.5 – 2 times maximum of
current rating.)
(Note: Please select enough current capacity of NFB.)
Fuse Specification Chart
Smaller fuses than those shown in the table are permitted.
Line Fuse
Model
I (input)
(A)
I (output)
(A)
I (A)
*1)
I
(A)
*2)
UDGL2500-0002SAW1
4.9
1.6
15
6
UDGL2500-0004SBW1 6.5
2.5
20
10
UDGL2500-0007SBW1 9.7
4.2
30
16
UDGL2500-0015SEW1 15.7
7.5
50
20
UDGL2500-0022SEW1 24
11
50
25
UDGL2500-0004TCW1 1.7
1.5
6
4
UDGL2500-0007TDW1 2.9
2.5
10
6
UDGL2500-0015TFW1 5.1
4.2
15
10
UDGL2500-0022TFW1 6.9
5.5
20
10
*1) Use “ultra rapid fuses” when working according to uL and CuL standards
(e.g. Bussmann Type JJN/JJS)
*2) Fuse characteristics - “gL” for European standard environment
1-phase 3-phase
Model
Input Current
(A)
Model
Output
Current (A)
UDGL2500-0002SAW1 4.9 UDGL2500-0004TCW1
1.5
UDGL2500-0004SBW1 6.5 UDGL2500-0007TDW1 2.5
UDGL2500-0007SBW1 9.7 UDGL2500-0015TFW1 4.2
UDGL2500-0015SEW1 15.7 UDGL2500-0022TFW1 5.5
UDGL2500-0022SEW1 24