Fuses; Recommended Fuses For Field Circuit; Fuses For Armature Circuit; Converters 1Q: 400V, 575V, 690V, 830V And 950V - Siemens 6RA7086-6KS22 Operating Instructions Manual

05.05
6.6

Fuses and commutating reactors

6.6.1 Commutating reactors
Commutating reactors can be selected from Catalog DA93.1.
The line impedance including commutating reactors must be equivalent of between 4% and 10%
short-circuit voltage. Commutating reactors can be provided by the customer to limit commutating
voltage dips in the supply system (subject to local regulations).
6.6.2

Fuses

For technical data, configuring data and dimension drawings, please refer to Catalog DA94.1.
It is essential to use "UL-listed" or "UL-recognized" fuses for protection of devices in accordance
with UL standards.
6.6.2.1

Recommended fuses for field circuit

Converter unit
Rated DC current
A
15
30
60 to 125
210 to 280
400 to 600
710 to 1200
1500 to 2000
2200 to 3000
1) UL-recognized
6.6.2.2

Fuses for armature circuit

6.6.2.2.1 Converters 1Q: 400V, 575V, 690V, 830V and 950V

Converter
Order No.
6RA7018-6DS22
6RA7025-6DS22
6RA7025-6GS22
6RA7028-6DS22
6RA7031-6DS22
6RA7031-6GS22
6RA7075-6DS22
6RA7075-6GS22
6RA7078-6DS22
6RA7081-6DS22
6RA7081-6GS22
6RA7085-6DS22
6RA7085-6GS22
6RA7087-6DS22
6RA7087-6GS22
6RA7086-6KS22
Siemens AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
Max. permissible
field current
A
3
5
10
15
25
30
40
85
C / V 3 line fuses
Siemens ЯU
Order No.
A / V
30 / 400 3NE8003-1
60 / 400 3NE1817-0
60 / 575 3NE1817-0
90 / 400 3NE1820-0
125 / 400 3NE1021-0
125 / 575 3NE1021-0
210 / 400 3NE3227
210 / 575 3NE3227
280 / 400 3NE3231
400 / 400 3NE3233
400 / 575 3NE3233
600 / 400 3NE3336
600 / 575 3NE3336
850 / 400 3NE3338-8
800 / 575 3NE3338-8
720 / 690 3NE3337-8
1 Siemens fuse
Order No.
5SD420
5SD420
5SD420
5SD440
5SD440
5SD480
3NE1802-0 1)
3NE8021-1 1)
100
C / V
A / V
35 / 690
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
1 Bussmann fuse
FWP 700V ЯU
A Order No.
16 FWP-5B
16 FWP-5B
16 FWP-15B
25 FWP-20B
25 FWP-30B
30 FWP-35B
40 FWP-50B
FWP-100B
Connections
A
5
5
15
20
30
35
50
100
6-55