3TK2830-2AL20

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The Siemens 3TK2830-2AL20 is a sophisticated safety relay designed to enhance the operational integrity of machinery and automation systems. This extension unit is part of the SIRIUS safety relay range and is engineered to provide reliable relay release circuits. With a supply voltage of 230V AC and a compact width of 22.5mm, it is equipped with spring-loaded terminals for secure and efficient wiring.

This safety relay is capable of achieving a Safety Integrity Level (SIL) of SIL3 according to IEC 61508 and a Performance Level (PL) of 'e' as per EN ISO 13849-1, ensuring high levels of safety for various applications. It features four safety-related, instantaneous switching NO contacts and one feedback monitoring contact, making it suitable for a range of safety functions within industrial environments.

The 3TK2830-2AL20 operates within an ambient temperature range of -25 to +60 degrees Celsius and can be installed at altitudes up to 2,000 meters above sea level. Its robust design includes resistance to vibrations and shocks, ensuring reliable performance even in demanding conditions.

This unit is designed for Class A environments and is not intended for residential areas due to potential radio-frequency interference. It is essential for users to take appropriate measures to comply with EMC regulations when operating in such environments.

With its finger-safe protection against electrical shock and an insulation voltage rated at 300V, the 3TK2830-2AL20 prioritises safety and durability. Its mechanical operating cycles are rated for up to 10 million operations, highlighting the unit's longevity and reliability.

The Siemens 3TK2830-2AL20 is a vital component for those seeking to maintain high safety standards in their industrial automation systems, providing peace of mind through its reliable and secure operation.
Specification Description
Part Number 3TK2830-2AL20
Alternative Part Number 3TK28302AL20
Manufacturer Siemens
Product Type SIRIUS Safety Relay
Design Extension unit
Supply Voltage 230V AC
Terminal Type Spring-loaded terminal
Instantaneous Contacts 4 Safety-related
Feedback Circuit 1 Monitored feedback
Safety Integrity Level (SIL) SIL3
Performance Level (PL) e
Category according to EN ISO 13849-1 4
Mounting Type Screw and snap-on mounting
Width 22.5 mm
Height 120 mm
Depth 120 mm
Enclosure Protection Type IP40 for enclosure, IP20 for terminal
Ambient Operating Temperature -25 … +60 °C
Installation Altitude Up to 2,000 m above sea level
Resistance to Vibration According to IEC 60068-2-6: 5 ... 500 Hz, 0.075 mm
Shock Resistance 8g / 10 ms
Impulse Voltage Resistance Rated value 4,000 V
EMC Emitted Interference EN 60947-5-1
Installation Environment Suitable for Class A environments only
Control Supply Voltage Frequency 50 Hz / 60 Hz
Operating Cycles Maximum 1,000 per hour
Switching Capacity of Relay Outputs At AC-15: 5 A at 115 V / 5 A at 230 V
Thermal Current Maximum 5 A
Electrical Operating Cycles Typical 100,000
Mechanical Operating Cycles Typical 10,000,000
Certifications/Approvals TÜV, UL, CSA, EN 60204-1, EN ISO 12100, EN 954-1, IEC 61508

What is the purpose of this safety relay?

The Siemens safety relay is designed to monitor and ensure safety functions within an automation system. It acts as an extension unit that can be integrated into safety circuits, providing reliable monitoring for applications such as emergency stop functions and safety doors.

Can this safety relay be used in residential environments?

This product is intended for Class A environments only and may cause radio-frequency interference in residential settings. If used in such environments, appropriate measures must be taken to mitigate interference.

What are the operating temperature limits for this safety relay?

The operating temperature range for this safety relay is between -25°C and +60°C, ensuring reliable operation in a variety of industrial environments.

What type of electrical connections does this safety relay support?

The safety relay features spring-loaded terminals, which allow for secure and maintenance-free electrical connections. It supports solid and finely stranded conductors with or without wire end processing.

What is the maximum installation altitude for this safety relay?

The maximum installation altitude for the safety relay is 2,000 meters above sea level, allowing it to function effectively in various geographical locations.

What is the significance of the SIL rating for this safety relay?

The Safety Integrity Level (SIL) rating indicates the reliability of the safety functions performed by the relay. This relay has a SIL3 rating, which is suitable for high-risk applications where a high level of safety integrity is required.

What is the maximum switching capacity for the relay outputs?

The maximum switching capacity for the relay outputs is 5A for both NO and NC contacts at AC-15 at 230V, ensuring the relay can handle a substantial load in safety circuits.

Is this safety relay suitable for emergency stop function applications?

Yes, the safety relay is suitable for use in safety cut-out switch applications, which includes emergency stop functions as part of a comprehensive safety system.

What certifications does this safety relay have?

The safety relay has several certifications, including TÜV and UL registration, which confirm its compliance with international safety standards and its suitability for use in various markets.

How does the feedback input feature work on this safety relay?

The feedback input feature allows the safety relay to receive signals from the monitored safety devices, ensuring that the safety function is active and the machinery is in a safe state before allowing operation.

  • Integration into safety circuits for industrial automation systems
  • Monitoring and control of emergency stop functions
  • Use in safety relay applications for machinery and plant safety
  • Implementation in safety-related parts of control systems (SRP/CS)
  • Connection to safety sensors for protective door monitoring
  • Utilisation in applications requiring Safety Integrity Level (SIL) 3
  • Deployment in systems needing Performance Level (PL) e according to EN ISO 13849-1
  • Part of safety measures for automated production lines
  • Extension unit for complex safety functions in automated processes
  • Component in fail-safe modules for process protection

This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.

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