Siemens SIRIUS System Manual

3RT1/3RH1 contactors
SIRIUS System Manual
3-86
GWA 4NEB 430 0999-02b
3.5 Mounting and connection
3.5.1 Mounting
Note
Note the following when mounting the cover:
• If foreign bodies, such as wood shavings, can get into the device, the con-
tactors must be covered during installation.
• If there is a danger that dirt or dust could be present, or if there is a corro-
sive atmosphere, the contactors must be installed in a housing.
• Dust deposits must be vacuum cleaned.
Attachment
options
The attachment options for the contactors are uniform.
Table 3-34: Attachment
Screw-on attachment
Figure 3-67: 3RT: Screw-on attachment (frame size S00)
Frame size Installation Removal
S00 to S3 Screw-on attachment Removed with a screwdriver
S00, S0
Snapped onto a
35 mm rail (in acc. with
EN 50 022)
Removed without a tool
S2, S3
Snapped onto a
35 mm rail (in acc. with
EN 50 022)
The snap-on spring can be opened with a
screwdriver
S3
Snapped onto a
75 mm rail
M4
The 3RT1 contactors can be screwed
onto a flat surface.
• With 2 M4 screws, diagonal
• Maximum tightening torque 2 Nm
• Washers and spring lock washers must
always be used
• The distance to grounded parts at the
side must be more than 6mm

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