Fused selection tables up to 690 V
5.5 Short-circuit protection: Contactor + 3RR2 monitoring relay, type of coordination 1 and 2
Configuring SIRIUS Innovations
82 Configuration Manual, 04/2010, A8E56203880102-02
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
Fuse links
1)
Acc. to IEC 60947
3)
Acc. to UL 508
4)
(600 V)
Monitorin
g relay
Overload
relay
Setting
range
Contactor
Type of coordination
2)
MLFB A MLFB kW 1 2
Standard short-
circuit rating
High short-circuit
rating
Size S00
Stand-alone
assembly
50 50 60 60
3RT2015 35 35 20
3RT2016 35 35 20
3RT2017 50 50 25
3RR2.41 1,6 ... 16
3RT2018 50 50 25
— —
Size S0
Stand-alone
assembly
125 80 100 100
3RT2024 5,5 63 25
3RT2025 7,5 63 25
3RT2026 11,0 100 35
3RT2027 15,0 125 50
3RR2.42 4 ... 40
3RT2028 18,5 125 50
— —
1)
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)
RK1, RK5, J, CC
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