Bosch Rexroth Indramat ECODRIVE DKC02.1 Series - Selecting the Fuse Protector Q1 and Line Contactor K1

ECODRIVE DKC02.1 Drive Controller Power connection 11-3
DOK-ECODRV-DKC02.1****-PRJ2-EN-P
Selecting the fuse protector Q1 and line contactor K1
The fuse protector must be rated 1.5 times higher than the actual current
at the power connection
I N.
Fuse protection can be implemented using:
•
an automatic circuit breaker (power circuit breaker) or
•
a power circuit breaker or
•
safety fuses.
Select the line contactor according to the phase current at the power line
and the rated line voltage.
The rated current of the line contactor must be 1.5 times higher than the
actual phase current at the power line.
For a rated line voltage of 3 x 400 V, 50 Hz, , the line contactors listed in
the selection table are recommended depending on the phase current
I N.
The types specified in the selection table are from the Siemens company
and serve as examples.
Recommended fuse protection Recommended line
contactor
Phase
current
Line
cross
section
(1)
Automatic
circuit
breaker
(tripping char-
acteristic C)
Power circuit breaker Safety fuse
(class gl)
(for U N = 3 x 400 V, 50
Hz)
I N
in A
mm
2
Cur-
rent
in A
N
(3)
Siemens
type
Setting
value in
A
N
(3)
Cur-
rent
in A
N
(3)
Siemens
type
Nominal
operating
current
N
(3)
up to
8.7
1,0 10 5 3VU1300
- .ML00
10 12 10 4 3TF40 12 7
up to
11
1,5 16 7 3VU1300
-.MM00
16 19 16 6 3TF41 16 10
up to
15
2,5 20 9 3VU1300
-.MP00
20 24 20 9 3TF42 22 13
up to
21
4,0 32 15 3VU1300
-.MP00
25 30 32 14 3TF43 32 19
(1) Values apply to PVC insulated multi-wire cables in protective pipes and installation ducts with an ambient te m-
perature of 45 °C (in accordance with EN 60204-1/1992)
(2) The current was fixed based on operating mode AC 3 for a line voltage of AC 400 V, 50 Hz.
(3) N = maximum number of connectable drives taking the starting current into consideration. If more drives are
connected than indicated, a fuse protector or line contactor with a higher current rating must be selected.
Fig. 11-5: Selection table for fuse protector Q1 and line contactor K1
Fuse protector Q1
Line contactor K1
Selection table
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