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Siemens 3SK1111-2AB30 SIRIUS Basic Safety Relay with Push-in Terminals

Siemens 3SK1111-2AB30: SIRIUS basic safety relay, 3 NO + 1 NC, push-in terminals.

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ManufacturerSiemens

Part number3SK1111-2AB30

Series SIRIUS

Type Basic Unit

Enabling Circuits 3 NO

Signaling Circuit 1 NC

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3 enabling circuits (NO) 1 signaling circuit (NC) 24 V AC/DC operation Spring-type push-in terminals Basic safety functions SIRIUS series

Product description

The Siemens 3SK1111-2AB30 is a basic SIRIUS safety relay designed for efficient integration into industrial safety circuits. This model provides three normally open (NO) contacts for enabling safe machine operation and one normally closed (NC) contact for signaling purposes. It operates on a 24 V AC/DC supply voltage and features spring-type terminals (push-in) for faster and more reliable wiring compared to screw terminals.

This safety relay is ideal for implementing fundamental safety functions like emergency stop circuits and safety gate monitoring in manufacturing, automation, and processing industries. The push-in terminal technology simplifies installation and maintenance, reducing downtime and labor costs.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial automation parts, offers the Siemens 3SK1111-2AB30. We provide quality components for your safety infrastructure, ensuring compliance and operational efficiency. Rely on Stanlo Automation for your critical safety relay needs.

Technical specifications

Series	SIRIUS
Type	Basic Unit
Enabling Circuits	3 NO
Signaling Circuit	1 NC
Supply Voltage	24 V AC/DC
Terminals	Spring-type (Push-in)

Common applications

Emergency stop circuits

Safety gate monitoring

Light curtain safety

Machine safety interlocks

Two-hand controls

Compatible systems

SIRIUS control systems PLC I/O modules Standard safety switches Emergency stop buttons

Also known as

Siemens SIRIUS Push-in Safety Relay 3SK11 Basic Safety Relay Siemens 24V Spring Terminal Relay

Replaces / compatible with

A direct replacement for Siemens safety relays using 3 NO + 1 NC contacts and 24V AC/DC, offering the advantage of faster push-in wiring termination.

Technical note

Expert tip

When using push-in terminals, ensure the conductor is stripped to the correct length and inserted firmly until it latches; a release tool may be required for removal.

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Frequently asked questions

What are the benefits of using spring-type (push-in) terminals on the 3SK1111-2AB30 safety relay?

Spring-type (push-in) terminals on the Siemens 3SK1111-2AB30 offer significant advantages in installation speed and reliability. They eliminate the need for screwdriver tightening, reducing wiring time and the risk of loose connections due to vibration, which is crucial for safety-critical applications.