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3SK1211-2BB40 Siemens
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Key specifications
Manufacturer
Siemens
HS code
85364900
Ship to
Luxembourg
Availability
2963 remaining
Express delivery to your country
Full 12-month warranty
Secure payment process
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The Siemens 3SK1211-2BB40 is a sophisticated extension safety relay module designed to enhance the functionality of safety programmable controllers. This module is an integral component for various industrial applications where safety and reliability are paramount. With a compact design measuring 22.5 x 121.7 x 100 mm, it is engineered to fit seamlessly into control panels without occupying excessive space. Equipped with four normally open (NO) contacts for safety-related instantaneous switching, the module ensures a high level of safety for machinery and operators alike. It also includes a relay feedback circuit with one normally closed (NC) contact, providing a reliable means of status monitoring for safety systems. The 3SK1211-2BB40 operates at a control supply voltage of 24 V DC, making it compatible with a wide range of control systems. It boasts an impressive mechanical service life of typically 10 million operating cycles, indicating a long-lasting and durable performance in demanding industrial environments. This module is designed for any mounting position, offering flexibility in installation, and it features a spring-loaded terminal (push-in) connection type for quick and secure wiring. With an insulation voltage rated at 300 V and a protection class of IP20, the unit is safeguarded against electrical interference and offers finger-safe protection against electrical shock. The safety relay module is compliant with a variety of international standards, including a Safety Integrity Level (SIL) of 3 according to IEC 62061 and IEC 61508, and a Performance Level (PL) of e according to ISO 13849-1. It also falls under Category 4 according to EN ISO 13849-1, reflecting its capability to perform at the highest level of safety for control systems. In summary, the Siemens 3SK1211-2BB40 is a reliable and efficient solution for expanding the output capabilities of safety control systems, ensuring both the protection of personnel and machinery in a wide array of industrial settings.
Typical applications
- Expansion of safety functions in automated systems
- Integration with safety programmable controllers for enhanced machine protection
- Use in safety circuits requiring multiple safety contacts
- Implementation in emergency stop applications for industrial machinery
- Deployment in safety gate monitoring systems
- Application in light curtain safety systems for personnel protection
- Utilisation in two-hand control stations for press and assembly operations
- Incorporation in safety interlock systems for hazardous areas
- Enhancement of safety measures in robotic automation cells
- Upgrading existing safety relay setups to meet higher safety categories
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