Siemens SIRIUS Safety Relay 3SK1111-1AB30 24V AC/DC 3NO 1NC

Overview
The Siemens SIRIUS Safety Relay (3SK1111-1AB30) is a basic unit designed for safety-related applications in industrial automation. It features 3 enabling circuits (NO contacts) and 1 signaling circuit (NC contact), providing reliable switching for emergency stop systems, safety gates, and light curtains. Operating on 24V AC/DC power supply with screw terminals for secure wiring, this safety relay complies with EN ISO 13849-1 and IEC 61508 standards, supporting safety integrity levels up to PL e / SIL 3 when used in appropriate safety architectures.

Key Features

• 3 Enabling Circuits – 3 NO contacts for safety output switching.

• 1 Signaling Circuit – 1 NC contact for diagnostic feedback.

• Wide Power Supply – 24V AC/DC for flexible installation.

• Screw Terminals – Secure and reliable wiring connection.

• Compact Design – Space-saving housing for control cabinet installation.

• Safety Compliance – Suitable for PL e / SIL 3 safety applications.

• Original Brand New, Within Warranty Period – Genuine Siemens product, brand new in sealed packaging, covered by manufacturer's warranty.

• 100% Satisfaction Guarantee – Your purchase is protected by our satisfaction guarantee; return or exchange if not completely satisfied.

Technical Specifications

• Product Type: Safety Relay (Basic Unit)

• Model: 3SK1111-1AB30

• Series: SIRIUS

• Enabling Circuits: 3 NO contacts

• Signaling Circuit: 1 NC contact

• Power Supply: 24V AC/DC

• Connection: Screw terminals

• Safety Level: Up to PL e / SIL 3 (depending on application)

• Standards: EN ISO 13849-1, IEC 61508

Applications
Ideal for emergency stop circuits, safety door monitoring, light curtain evaluation, and other safety-related control tasks in factory automation, machine building, and process industries.

Package Includes

• 1 x SIRIUS Safety Relay (3SK1111-1AB30)

• Documentation and connectors (if applicable)