Siemens SIRIUS Configuration Manual

Fused selection tables up to 690 V
5.3 Short-circuit protection: Contactor + 3RB3 solid-state overload relay
Configuring SIRIUS Innovations
Configuration Manual, 04/2010, A8E56203880102-02
75
Table 5- 4 Derating values for overload relay and contactor size S0
CLASS
5 / 10 20 30
Overload
relay
Overload relay
Setting range
Contactor
AC-3 derating values
MLFB A MLFB kW 400 V 500 V 690 V 400 V 500 V 690 V 400 V 500 V 690 V
Stand-alone
assembly
0,4 0,4 0,4 0,4 0,4 0,4 0,4 0,4 0,4 3RB3026-
1RB0
0,1 ... 0,4
3RT2024 5,5 0,4 0,4 0,4 0,4 0,4 0,4 0,4 0,4 0,4
Stand-alone
assembly
1,3 1,3 1,3 1,3 1,3 1,3 1,3 1,3 1,3 3RB3026-
1NB0
0,32 ... 1,25
3RT2024 5,5 1,25 1,25 1,25 1,25 1,25 1,25 1,25 1,25 1,25
Stand-alone
assembly
4,0 4,0 4,0 4,0 4,0 4,0 4,0 4,0 4,0 3RB3026-
1PB0
1 ... 4
3RT2024 5,5 4,0 4,0 4,0 4,0 4,0 4,0 4,0 4,0 4,0
Stand-alone
assembly
12,0 12,0 12,0 12,0 12,0 12,0 12,0 12,0 12,0
3RT2024 5,5 12,0 12,0 9,0 12,0 12,0 9,0 12,0 12,0 9,0
3RB3026-
1SB0
3 ... 12
3RT2025 7,5 12,0 12,0 12,0 12,0 12,0 12,0 12,0 12,0 12,0
Stand-alone
assembly
25,0 25,0 25,0 25,0 25,0 25,0 23,0 23,0 23,0
3RT2025 7,5 17,0 17,0 13,0 16,0 16,0 13,0 14,0 14,0 13,0
3RT2026 11,0 25,0 18,0 13,0 16,0 16,0 13,0 14,0 14,0 13,0
3RT2027 15,0 25,0 25,0 21,0 18,6 18,6 15,1 16,2 16,2 15,1
3RB3026-
1QB0
6 ... 25
3RT2028 18,5 25,0 25,0 21,0 22,4 22,4 18,2 19,6 19,6 18,2
Stand-alone
assembly
40,0 40,0 40,0 28,0 28,0 28,0 23,0 23,0 23,0
3RT2027 15,0 32,0 32,0 21,0 18,6 18,6 15,1 16,2 16,2 15,1
3RB3026-
1VB0
10 ... 40
3RT2028 18,5 38,0 32,0 21,0 22,4 22,4 18,2 19,6 19,6 18,2

Siemens SIRIUS Specifications

General

Product brand name	Siemens
Series	SIRIUS
Coil Voltage	24V DC, 110V AC, 230V AC
Switching Capacity	Up to 10A
Mounting Type	DIN rail
Product designation	SIRIUS
Contact Material	Silver alloy
Contact Rating	Varies depending on the specific SIRIUS relay model (e.g., 6 A at 250 V AC, 10 A at 250 V AC)
Switching Voltage	Varies depending on the specific SIRIUS relay model (e.g., 250 V AC, 400 V AC)
Mechanical Life	Up to 10 million operations
Electrical Life	Up to 100, 000 operations
Operating Temperature	-25°C to +55°C
Protection Class	IP20
Size of relay base	Varies depending on the specific SIRIUS relay model