3SK1220-1AB40
The 3SK1220-1AB40 is an input expansion module from the Siemens SIRIUS 3SK1 Advanced series. It can expand one set of 2-channel or two sets of 1-channel sensor inputs. It has a rated voltage of 24V DC, bolt-type terminals, and is suitable for expanding multiple safety sensing circuits.
Product Positioning
The 3SK1220-1AB40 is an input expansion module from the Siemens SIRIUS 3SK1 Advanced series. It can add sensor input channels to the basic unit and is suitable for applications that require monitoring multiple sets of safety sensors.
Core Product Advantages and Features
Sensor Input Expansion
It can be expanded to include one more 2-channel or two 1-channel sensors, and can monitor both floating and non-floating output types.
Modular expansion architecture
It can be connected in series with the 3SK1 Advanced series basic unit via the device connector, simplifying wiring and integration time.
Bolt-type terminals
The wiring uses bolt-type terminal connections, ensuring a secure and reliable connection suitable for long-term industrial use.
Compact housing
The narrow housing design saves installation space inside the control panel.
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