Short-Circuit Protection: Solid-State Contactor, Type Of Coordination 1 And 2 - Siemens SIRIUS Configuration Manual

Fused selection tables up to 690 V

5.8 Short-circuit protection: Solid-state contactor, type of coordination 1 and 2

5.8 Short-circuit protection: Solid-state contactor, type of coordination 1
and 2
Short-circuit protection with fuses for 3RF34 solid-state contactor
Fuse links according to IEC 60947 and UL 508
Short-circuit protection up to 600 V / 50 kA, type of coordination 1 and 2
Table 5- 14 Fuse links for monitoring relay and contactor size S00 and S0
Solid-state contactor
MLFB I @
e
40 °C [A]
3RF3405- 5,2
1BB54
3RF3410- 9,2
1BB54
3RF3412- 12,5
1BB54
3RF3416- 16
1BB54
Reversing contactors
3RF3403- 3,8
1BD54
3RF3405- 5,4
1BD54
3RF3410- 7,4
1BD54
Guide value for 4-pole standard motors at 400 V AC, 50 Hz. Selection depends on the concrete startup and rated data
1)
of the protected motor.
Take account of the operating voltage
2)
Assignment and short-circuit protective devices acc. to DIN EN 60947-4-1
3)
NH type 3NA, DIAZED type 5SB, NEOZED type 5SE, operating class gG
4)
Class K5, RK5, RK1, J
5)
86
Acc. to IEC 60947
P @ 400 500 V 3NW / 600 V 3NA
V [kW] 50 kA
1)
Type of coordination
1
2,2 25 On request
4 40
5,5 40
7,5 40
1,5 25 On request
2,2 40
3 40
Fuse links
4)
600 V
Standard short-
circuit rating
3)
2 5 kA
10
20
30
30
10
10
20
Configuration Manual, 04/2010, A8E56203880102-02
2)
Acc. to UL 508
5)
480 V
High short- High short-circuit
circuit rating
65 kA
25
45
45
50
45
45
45
Configuring SIRIUS Innovations
600 V
rating
65 kA
45
45
50
50
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