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Siemens 3SK1122-2CB42 SIRIUS Safety Relay - Basic Unit Advanced

Siemens 3SK1122-2CB42 SIRIUS Safety Relay, Advanced Series.

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ManufacturerSiemens

Part number3SK1122-2CB42

Series SIRIUS Advanced

Type Basic Unit

Time Delay 0.5-30 s

Enabling Circuits 2 NO instantaneous

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Adjustable time delay 0.5-30s 2 NO instantaneous outputs 2 NO delayed outputs 24V DC operation Spring-type (push-in) terminals SIRIUS Advanced series

Product description

The Siemens 3SK1122-2CB42 is a SIRIUS safety relay from the Advanced series basic unit. It offers an adjustable time delay ranging from 0.5 to 30 seconds. This relay includes 2 instantaneous normally open (NO) enabling circuits and 2 delayed normally open (NO) outputs. It operates at 24V DC and features spring-type (push-in) terminals for efficient and secure connections.

This safety relay is suitable for industrial applications requiring a longer, adjustable time delay in safety functions, such as controlled stop sequences or machine operation with specific timing requirements. It is commonly used in automated manufacturing and complex machinery.

Stanlo Automation, a veteran-owned supplier, provides the Siemens 3SK1122-2CB42. We are committed to delivering reliable surplus industrial automation parts to ensure your operations run smoothly and safely.

Technical specifications

Series	SIRIUS Advanced
Type	Basic Unit
Time Delay	0.5-30 s
Enabling Circuits	2 NO instantaneous
Relay Outputs	2 NO delayed
Supply Voltage	24 V DC
Terminal Type	Spring-type (push-in)

Common applications

Machine safety control

Industrial automation

Controlled stop sequences

Safety gate monitoring

Timed safety functions

Process automation

Compatible systems

Compatible with standard safety sensors and control systems requiring 24V DC inputs.

Also known as

Siemens 3SK1122-2CB42 module SIRIUS advanced safety relay 3SK1122 push-in timer relay

Replaces / compatible with

An excellent choice for applications needing a longer time delay and the convenience of push-in terminals. Integrates with Siemens SIRIUS safety system components.

Technical note

Expert tip

The spring-type (push-in) terminals on the 3SK1122-2CB42 offer a tool-free connection, simplifying installation and maintenance in high-volume production environments.

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Frequently asked questions

What is the maximum time delay offered by the Siemens 3SK1122-2CB42 safety relay?

The Siemens 3SK1122-2CB42 safety relay provides an adjustable time delay up to 30 seconds. This extended range is beneficial for safety applications that require controlled sequential operations or longer hold times.