Siemens SIRIUS System Manual

3RT1/3RH1 contactors
SIRIUS System Manual
GWA 4NEB 430 0999-02b
3-47
Compensating for dif-
ferent depths
In star-delta combinations with contactors of different frame sizes, it is nec-
essary to compensate for the mounting depth of the smaller contactor.
One frame size is the maximum difference possible.
The following depth compensation must be made for a mechanical interlock
attached at the side:
• S2-S2-S0: K3: 1.5 mm; K2: 0 mm
• S3-S3-S2: K3: 0 mm; K2: 27.5 mm
Mounting and connec-
tion
The star-delta combinations have screw-type connections that are suitable
for both screw-on and snap-on mounting on the 35 mm rail.
Conductor cross-sec-
tions
The permissible conductor cross-sections of the star-delta combinations cor-
respond to those of the basic units for the corresponding frame size.
Circuit diagrams
Main circuit: S00, S0, S2, S3
Figure 3-25: Star-delta combination, main circuit (frame sizes S00 to S3)
S2 and S3
S00 S0
L1
L2
L3
F1
K1 K3
M
3
~
NSB00642
U1
V1
W1
F0
K2
135
2
46
W2
U2
V2
135
246
M
U1
V1
W1
W2
U2
V2
3AC 50Hz ...V
3
~
L1
L2
L3
F1
K1 K3
M
3
~
NSB00645
U1
V1
W1
F0
K2
135
2
46
W2
U2
V2
135
246
M
U1
V1
W1
W2
U2
V2
3AC 50Hz ...V
3
~
L1
L2
L3
F1
K1 K3
M
3
~
NSB00648
U1
V1
W1
F0
K2
135
2
46
W2
U2
V2
135
246
M
U1
V1
W1
W2
U2
V2
3AC 50Hz ...V
3
~
F0

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