Short-Circuit Protection: Contactor + 3Rr2 Monitoring Relay, Type Of Coordination 1 And 2 - Siemens SIRIUS Configuration Manual

Fused selection tables up to 690 V

5.5 Short-circuit protection: Contactor + 3RR2 monitoring relay, type of coordination 1 and 2

5.5 Short-circuit protection: Contactor + 3RR2 monitoring relay, type of
coordination 1 and 2
Short-circuit protection with fuses for motor feeders with 3RR2, contactor mounting, and stand-alone
assembly
Fuse links according to IEC 60947 and UL 508
Short-circuit protection up to 690 V / 100 kA, type of coordination 1 and 2
Table 5- 11 Fuse links for monitoring relay and contactor size S00 and S0
Monitorin Overload
g relay relay
Setting
range
MLFB A
Size S00
3RR2.41 1,6 ... 16
Size S0
3RR2.42 4 ... 40
Take account of the operating voltage
1)
Assignment and short-circuit protective devices acc. to DIN EN 60947-4-1
2)
NH type 3NA, DIAZED type 5SB, NEOZED type 5SE, operating class gG
3)
RK1, RK5, J, CC
4)
82
Contactor
MLFB kW
Stand-alone
assembly
3RT2015 35
3RT2016 35
3RT2017 50
3RT2018 50
Stand-alone
assembly
3RT2024 5,5
3RT2025 7,5
3RT2026 11,0
3RT2027 15,0
3RT2028 18,5
Fuse links
Acc. to IEC 60947
3)
Type of coordination
2)
1 2
50 50
35 20
35 20
50 25
50 25
125 80
63 25
63 25
100 35
125 50
125 50
Configuration Manual, 04/2010, A8E56203880102-02
1)
Acc. to UL 508
4)
(600 V)
Standard short- High short-circuit
circuit rating rating
60
—
100 100
—
Configuring SIRIUS Innovations
60
—
—