Fuses; Fuses For The Exciter Circuit; Fuses For The Armature Circuit - Siemens SINAMICS DCM Operating Instructions Manual

6.7

Fuses

For technical data, project engineering data, and dimension drawings for Siemens fuses,
please refer to Chapter 4 of the BETA Catalog.
In order to ensure UL-compliant protection of units, it is essential that you use UL-listed or
UL-recognized fuses.
6.7.1

Fuses for the exciter circuit

Table 6- 4 Suggested fuses for the exciter circuit
Rated DC current for converter
unit
A
15
30
60-125
210-280
400-600
710-850
900-3000
1500-3000 with option L85
1) UL-recognized
6.7.2

Fuses for the armature circuit

2Q units: 400 V, 575 V, 690 V, 830 V, and 950 V
Table 6- 5 Phase fuses
Unit
Order number
6RA8025-6DS22
6RA8025-6GS22
6RA8028-6DS22
6RA8031-6DS22
6RA8031-6GS22
6RA8075-6DS22
6RA8075-6GS22
6RA8078-6DS22
6RA8081-6DS22
6RA8081-6GS22
6RA8085-6DS22
6RA8085-6GS22
6RA8087-6DS22
6RA8087-6GS22
6RA8086-6KS22
SINAMICS DCM DC Converter
Operating Instructions, 1.2012, C98130-A7066-A1-05-7619
Max. excitation Siemens fuse
current
A Order number
3 5SD420
5 5SD420
10 5SD420
15 5SD440
25 5SD440
30 5SD480
40 3NE1802-0 1)
85 3NE8021-1 1)
I/U [A/V]
60 / 400
60 / 575
90 / 400
125 / 400
125 / 575
210 / 400
210 / 575
280 / 400
400 / 400
400 / 575
600 / 400
600 / 575
850 / 400
800 / 575
720 / 690
A
16
16
16
25
25
30
40
100
3x Siemens ЯU phase fuses
Order number
3NE1817-0
3NE1817-0
3NE1820-0
3NE1021-0
3NE1021-0
3NE3227
3NE3227
3NE3231
3NE3233
3NE3233
3NE3336
3NE3336
3NE3338-8
3NE3338-8
3NE3337-8
Connecting
6.7 Fuses
Bussmann fuse
FWP 700V ЯU
Order number
FWP-5B
FWP-5B
FWP-15B
FWP-20B
FWP-30B
FWP-35B
FWP-50B
FWP-100B
I/U [A/V]
50 / 690
50 / 690
80 / 690
100 / 690
100 / 690
250 / 1000
250 / 1000
350 / 1000
450 / 1000
450 / 1000
630 / 1000
630 / 1000
800 / 800
800 / 800
710 / 900
A
5
5
15
20
30
35
50
100
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