Siemens SIRIUS System Manual

3RA1 fuseless load feeders
SIRIUS System Manual
GWA 4NEB 430 0999-02b
5-19
Screw-on attachment
Screw-on attachment is implemented in the case of sizes S00 and S0 by
means of push-in lugs (see Section 2.4 for information on circuit-breaker
accessories).
In the case of sizes S2 and S3, the holes for screw-on attachment are inte-
grated in the mandatory rail adapter.
The following illustration shows screw-on attachment by means of push-in
lugs in the case of the fuseless load feeder of frame size S00:.
Figure 5-12: Screw-on attachment, fuseless load feeder (frame size S00)
Important
In the case of screw-on attachment without a rail adapter, the feeder must
not be screwed onto a conductive surface. Insulation is necessary so that, in
the event of a short circuit of the circuit breaker, there is no short circuit to
the base plate.
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6
1
2
3
3RA1900-0B

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