Siemens SIRIUS System Manual

3RW3 semiconductor motor control unit
SIRIUS System Manual
8-4
GWA 4NEB 430 0999-02b
Warnings
Important
The 3RW3...-1.B1. soft starter was built as
a class A device. Using this product in res-
idential buildings could cause radio inter-
ference.
Caution
The devices are all carefully tested at the
factory and are not shipped unless they
are found to be in proper working order.
However, they may be subjected to
stresses during transportation over which
we have no control.
Consequently, the impulse series relays in
the main circuit may be in an undefined
switching state.
In the interests of complete safety, the
following procedure should be used at
commissioning or after the replacement
of the SIRIUS soft starter:
First
, apply the supply voltage in order to
put the impulse series relays in a defined
switching state.
Then
, switch the main circuit on.
If you deviate from this procedure, the
motor can be switched on inadvertently
and cause damage to people or parts of
the system.

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