SIEMENS
11/18
Siemens IC 10 · 2017
* You can order this quantity or a multiple thereof.
Illustrations are approximate
Safety Relays
SIRIUS 3SK Safety Relays
Basic Units
SIRIUS 3SK1 Advanced basic units
11
■
Overview
3SK112 Advanced basic units
The 3SK112 Advanced basic units form an innovative system
landscape that allows even complex safety functions with large
numbers of sensors and outputs to be built up using the device
connectors. It is possible to increase both the number of inputs
for sensors and the number of safe outputs of the basic unit
without the need for wiring outlay between the devices.
Note:
Use of device connectors possible.
■
Selection and ordering data
Control
supply
voltage
at DC
Number of outputs
Adjust-
able
OFF-delay
time
SD
Article No.
Price
per PU
PU
(UNIT,
SET, M)
PS*
PG
as contacting
contact block
as contactless semiconductor
contact block
As NO
contact,
instanta-
neous
switching
As NO
contact,
delayed
switching
As NC
contact
for
signaling
function,
instanta-
neous
switching
Instanta-
neous
switching
Delayed
switching
For
signaling
function,
instanta-
neous
switching
V
s
d
Advanced basic units
24
3
0
1
0
0
0
--
}
3SK1121-
@
AB40
1
1 unit
41L
2
2
0
0
0
0
0.05 ... 3
2
3SK1121-
@
CB41
1
1 unit
41L
0.5 … 30
}
3SK1121-
@
CB42
1
1 unit
41L
5 … 300
5
3SK1121-
@
CB44
1
1 unit
41L
24
0
0
0
1
0
0
--
2
3SK1120-
@
AB40
1
1 unit
41L
3
0
1
--
2
3SK1122-
@
AB40
1
1 unit
41L
2
2
0
0.05 ... 3
5
3SK1122-
@
CB41
1
1 unit
41L
0.5 … 30
2
3SK1122-
@
CB42
1
1 unit
41L
5 … 300
5
3SK1122-
@
CB44
1
1 unit
41L
Type of electrical connection
• Screw terminals
1
• Spring-type terminals (push-in)
2
3SK1122-1CB41
3SK1121-1AB40
3SK1122-1AB40
3SK1120-1AB40
© Siemens AG 2016