Siemens 3SK1 Configurable 24 V dc Safety Relay Single Channel with 4 Safety Contacts

Enrgtech Part No: ET16824497
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Manufacturer Part No:
3SK1121-1AB40
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Manufacturer: Siemens

3SK1121-1AB40 Siemens 3SK1 Configurable 24 V dc Safety Relay Single Channel with 4 Safety Contacts

Product Information

SIL IEC 61508:

Performance Level:

Reset Method:

Automatic, Monitored

Safety Category ISO 13849-1:

PL ISO 13849-1:

Series:

3SK1

Length:

100mm

Configurable:

Yes

Width:

22.5mm

Depth:

122mm

Number of Channels:

Supply Voltage:

24V dc

Checking for live stock

The Siemens 3SK1121-1AB40 is a high-performance SIRIUS safety relay designed for machine guarding and safety control. This 24V DC single-channel device provides a reliable interface for emergency stop and monitoring functions. It supports up to four safety contacts, ensuring comprehensive protection for industrial equipment. With its compact 22.5mm width and configurable reset methods, it integrates seamlessly into modern control cabinets. It meets the highest international safety standards.

Key Advantages for Users

By purchasing this Siemens 3SK1121-1AB40 safety relay, users benefit from maximum operational safety and versatile configuration options. The unit saves space while providing multiple safety contacts for complex machinery shutdown.

Supports automatic and monitored reset for operational flexibility.
Achieves high safety integrity levels for critical environment protection.

Design Features & Technical Specifications

Supply Voltage: 24V DC
Safety Contacts: 4
Number of Channels: 1
Safety Category: ISO 13849-1 Category 4
Performance Level: PL e
SIL Rating: SIL 3 (IEC 61508)
Terminal Type: Screw Terminal
Dimensions: 100mm (L) x 22.5mm (W) x 122mm (D)
Reset Method: Automatic or Monitored.

Datasheet - 3SK1121-1AB40(Technical Reference)

Machine Guarding and Safety Range Overview(Technical Reference)

Find out more on DesignSpark(Technical Reference)

SIRIUS 3SK1 Safety Relays Data Sheet(Technical Reference)

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