3SK Safety Relays
SIRIUS 3SK safety relays are the key elements of a consistent, cost-effective safety sequence. Whether you need EMERGENCY-STOP functionality, protective door monitoring, light arrays, laser scanners or the protection of presses or punches slimline SIRIUS safety relays enable all safety applications to be implemented in the best possible way in terms of engineering and price.
Overview
SIRIUS 3SK safety relays are the key elements of a consistent, cost-effective safety sequence. Whether you need EMERGENCY-STOP functionality, protective door monitoring, light arrays, laser scanners or the protection of presses or punches – slimline SIRIUS safety relays enable all safety applications to be implemented in the best possible way in terms of engineering and price.
The following safety-related functions are available:
- Monitoring the safety functions of sensors
- Monitoring the sensor leads
- Monitoring the correct device function of the safety relay
- Monitoring the actuators in the shutdown circuit
- Safety-related disconnection when dangers arise
SIRIUS 3SK safety relays are approved for applications up to SIL 3 (IEC 61508/IEC 62061) or PL e (EN ISO 13849-1).
Device Series
SIRIUS 3SK safety relays stand out on account of their flexibility in both parameterisation and system configurations with several evaluation units. This reduces device variance, thus bringing advantages in terms of device selection and spare parts management. Optimised solutions when selecting components and reduced spare part inventory requirements are facilitated by a clearly structured component range.
SIRIUS 3SK device series
The following device series are available:
- 3SK1 Standard basic units
- 3SK1 Advanced basic units
- 3SK2 basic units
- 3SK1 output expansions
- 3SK1 input expansions
- Accessories
3SK1 Standard basic units
The 3SK1 Standard basic units are characterised by the following features:
- Compact design
- Simple operation
- Relay and semiconductor outputs
- Economical solution
3SK1 Advanced basic units
The 3SK1 Advanced basic units additionally offer:
- Universal application opportunities thanks to multi-functionality
- Time-delayed outputs
- Expansion of inputs and outputs
3SK2 basic units
In addition, 3SK2 basic units offer:
- Up to six fail-safe, independent shutdown functions
- Flexible application thanks to software parameterisation
- Powerful semiconductor outputs
- Convenient diagnostics using diagnostics display and configuration software
- Communication via PROFINET/PROFIBUS by means of communication module
The 3SK1 and 3SK2 Standard and Advanced series are a high-quality replacement for the 3TK28 safety relays. In their narrower design, and equipped with greater functionality, they can replace every 3TK28 device. The only exceptions to this are 3TK2810 devices.
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