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3SK1121-2AB40 Siemens
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Availability
In stock
Manufacturer
Siemens
HS code
85364900
Ship to
Saudi Arabia
Express delivery to your country
Full 12-month warranty
Secure payment process
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The Siemens 3SK1121-2AB40 is a state-of-the-art safety relay from the 3SK1 series, designed to ensure the highest standards of safety in industrial environments. This compact device, measuring 22.5 x 100 x 121.6 mm, is engineered to seamlessly integrate into a variety of control systems, providing reliable protection and monitoring for machinery and personnel. Equipped with a 24 V dc control supply voltage, the relay is suitable for Class A environments, adept at managing undesired radio-frequency interference in such settings with appropriate measures. It features a single-channel input that can be wired in either a single or dual-channel configuration, enhancing its versatility and application scope. The safety relay boasts an impressive safety integrity level (SIL) of 3 according to IEC 61508 and a performance level (PL) of e according to EN ISO 13849-1, categorised at level 4. With a safe failure fraction (SFF) of 99%, it ensures a high degree of reliability and safety. The hardware fault tolerance is rated at 1, and the device is classified as a Type B safety device according to IEC 61508-2. For signalling functions, the relay includes 1 normally closed (NC) contact and 3 normally open (NO) safety-related contacts, ensuring immediate and reliable response to safety conditions. The product is also designed with cross-circuit detection and monitored start-up features, adding an extra layer of safety during operation. The Siemens 3SK1121-2AB40 is designed for easy installation with its screw and snap-on mounting options, and it supports a wide range of conductor cross-sections for flexible connection requirements. Its push-in terminal connection type simplifies the wiring process, making it user-friendly and time-efficient for setup. This safety relay is an essential component for applications requiring stringent safety measures, such as emergency stop functions, safety door monitoring, and light curtain integration. Its robust design and advanced safety features make it a reliable choice for safeguarding complex industrial processes.
Typical applications
- Monitoring and controlling safety functions in industrial automation systems
- Integration into emergency stop circuits for machinery
- Safeguarding protective doors and guards on equipment
- Implementing safety measures for light curtains and safety mats
- Managing safety functions in automated assembly lines
- Overseeing safe operation of presses and robotic arms
- Ensuring safe stop and start functions in conveyor systems
- Providing safety interlock switching for packaging machines
- Controlling access to hazardous areas through safety gates
- Use in safety circuits for woodworking and metalworking machinery
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Full 12-month warranty
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