3SK1111-1AB30

Product Description

Home / Safety Relays / Siemens 3SK1111-1AB30 Need Siemens 3SK1111-1AB30? Safety relay for Machine safety and emergency-stop control circuits. Supplied with full traceability and documentation. Request... Price & Availability Classified as a safety relay, it is positioned as a direct replacement and service part for existing installations. It is intended for use within Machine safety and emergency-stop control circuits, where dependable operation and a precise fit are essential to keeping the plant running. Listed as Active, it is offered as a maintained and verified spare that supports the continued operation of the installed base. Key technical specifications include: The Rated supply voltage is 24 V AC/DC. Its Contacts is rated at 3NO + 1NC. For reference, the Rated insulation voltage Ui is 300 V. The Safety performance is SIL3 / PL e / Category 4. Its Protection class is rated at IP20. For reference, the Dimensions (W x H x D) is 36 mm x 109 mm x 152 mm. The Net weight is 0.257 kg. Notable features of this unit: 24 V AC/DC wide-range coil for flexible control supply. SIL3 / PL e / Cat. 4 performance per machine-safety standards. Compact SIRIUS housing with IP20 protection. Typical applications include Emergency-stop circuits for machines and production lines, Guard-door and light-curtain monitoring, Industrial automation safety systems. It is compatible with or cross-references Siemens SIRIUS contactors and motor starters, Siemens 3SK safety expansion modules, Standard 24 V DC/AC control and sensor circuits. Equivalent / cross-reference designation: EN ISO 13849-1, IEC 62061 (SIL3 / PL e, Cat. 4). Within industrial automation and process-control environments, components of this type are relied upon to keep critical equipment operating safely and efficiently. They are typically specified where uptime, repeatability and a predictable maintenance cycle matter more than upfront cost. A safety relay such as this one forms part of a larger machine or system, so correct identification and fitment directly affect the performance and safety of the whole installation. Siemens parts are widely used across power generation, manufacturing, oil and gas, water and process industries, where engineering teams standardise on proven series to simplify spares planning. When selecting a replacement, confirm the exact model designation and verify that the mechanical and electrical interface matches the unit currently installed. Cross-checking the order code, mounting style and connection type against the existing device helps avoid compatibility issues and unplanned downtime during a maintenance window. Where several variants exist, the suffix often defines voltage, range or firmware, so it should be matched precisely rather than approximated. This item is offered from our active stock of current and discontinued industrial parts. Each listing is verified against the manufacturer designation before shipment so you receive the correct part for your application. Availability and lead time vary by item; our team can confirm the fastest option for your required quantity and provide a formal quotation on request. Common questions: Regarding "What voltage does the 3SK1111-1AB30 require": It is powered from a 24 V AC/DC supply, suitable for most standard industrial control voltages. Regarding "What safety level does it achieve": It is rated SIL3 / PL e / Category 4 when wired according to the SIRIUS safety application guidelines. Please contact us to confirm current pricing, availability and delivery for your required quantity; volume and project pricing are available on request. The Siemens 3SK1111-1AB30 is a safety relay. Basic Product Information 3NO+1NC contacts for safe state signalling and feedback SIL3 / PL e / Cat. 4 performance per machine-safety standards Screw terminal connection for secure, maintenance-friendly wiring Compact SIRIUS housing with IP20 protection 24 V AC/DC wide-range coil for flexible control supply Technical Specifications Version & Model Difference ['3SK1xxx series are the basic SIRIUS safety relays for single-channel E-Stop and guard monitoring', 'Higher variants add configurable inputs, muting or expansion modules', '3SK2/3SK3 families add speed monitoring and more contacts'] Application Scenarios Emergency-stop circuits for machines and production lines Guard-door and light-curtain monitoring Industrial automation safety systems What safety level does it achieve? It is rated SIL3 / PL e / Category 4 when wired according to the SIRIUS safety application guidelines. How many contacts are provided? The unit provides 3 normally-open and 1 normally-closed contact for safe-state signalling and feedback. What wiring method is used? It uses screw terminals for a secure, service-friendly connection in the control cabinet. What voltage does the 3SK1111-1AB30 require? It is powered from a 24 V AC/DC supply, suitable for most standard industrial control voltages. Siemens 6ES7214-1BH50-0XB0 PLC CPU (Type-1) Siemens 6ES7231-4HF50-0XB0 Analog Input Module Siemens 6ES7231-5PD50-0XB0 Analog RTD Module Siemens 6ES7231-5QF50-0XB0 Analog TC Module (S7-1200) Siemens 6ES7233-4HF50-0XB0 Analog IO Module (SM 1234) Siemens 6ES7216-2BD23-0XB0 PLC CPU (Type-2) Siemens 6ES7223-1BH22-0XA0 PLC IO Module (Type-1) Siemens 6ES7223-5PH50-0XB0 PLC IO Module (Type-2)