Siemens SIRIUS System Manual

3RT1/3RH1 contactors
SIRIUS System Manual
3-68
GWA 4NEB 430 0999-02b
Notes on configuration
The control of loads parallel to the start input is not permissible in AC opera-
tion. See the relevant circuit diagram
¿
below.
The off-delay solid-state time relay blocks (3RT1916-2D.../3RT1926-2D...)
have a live start input (B1). With AC voltage, this can imitate the control of a
parallel load on the B1 terminal. In this case, an additional load (contactor
K3, for example) should be wired as shown in circuit diagram
À
.
Figure 3-46: Control of loads
3.4.3.1 Frame size S00 (3RT1916-2C, -2D)
Caution
Switch off the supply voltage to A1/A2 before you install or remove the
solid-state time relay block.
Installation/removal
Important
The time-delay auxiliary switch cannot be attached to contactor relays.
The solid-state time relay block of frame size S00 is attached to the front of
the contactor and latched into place with a pushing movement.
Figure 3-47: Solid-state time relay block with semiconductor output, installation (frame size S00)
Connection
When the solid-state time relay block is installed, it is connected at the
same time with the A1 and A2 coil connections of the contactor by the plug-
in contacts. Coil connections of the contactor that are not required are cov-
ered by covers on the housing of the time relay block, thus preventing inad-
vertent connection.
¿
À
N
L1
S1
A2A1 B1
A2A1
K3
K1
K2
N
L1
K3
A2A1 B1
A2A1
S1
K3
K1
K2
K1 time relay block
K2 contactor
1
2
1
2
Installation
Removal

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