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The Siemens 3TK2820 Series Safety Relay is a vital component designed to ensure the safe operation of machinery in various industrial settings. This particular model, the 3TK2820-1CB30, operates with a 24 V dc supply and is engineered for screw mounting, making it both versatile and easy to install. With dimensions of 22.6 x 118 x 103.6 mm, it is compact enough to fit into a range of control cabinets and panels. This safety relay is specifically tailored for use with emergency stop units, providing immediate response to potential hazards by initiating a safe and controlled shutdown of machinery. It features a robust design that meets the requirements for IP40 protection class for the enclosure and IP20 for the terminals, ensuring it is safeguarded against particulate ingress and accidental contact. The 3TK2820-1CB30 is equipped with three normally open (NO) contacts for safety-related instantaneous switching and one normally closed (NC) contact for signalling functions. It supports both single-channel and two-channel wiring for sensor inputs, enhancing its flexibility for integration into safety systems. The relay is also designed with cross-circuit proofing, adding an extra layer of security to your safety circuitry. In terms of safety performance, this model achieves a Safety Integrity Level (SIL) of 3 according to IEC 61508, a Performance Level (PL) of e according to EN ISO 13849-1, and a Category 4 according to the same standard. These ratings indicate a high level of reliability and safety for the protection of personnel and equipment. The 3TK2820-1CB30 is suitable for a variety of safety applications, including protective door monitoring, emergency-off function, and position switch monitoring. Its ability to monitor floating sensors and safety-related circuits makes it a versatile choice for a wide range of industrial safety requirements. With its combination of compact design, robust safety features, and flexible application, the Siemens 3TK2820-1CB30 Safety Relay is an essential component for any industrial safety system, contributing to the maintenance of high safety standards while ensuring operational efficiency.
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"Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime"
"Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times."
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