3TK2824-1AL20

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The Siemens 3TK2824-1AL20 is a high-quality safety relay designed for monitoring protective doors and emergency stop functions in industrial environments. This component is engineered to provide reliable operation and enhance the safety systems of your machinery. With a 230 V ac operating voltage, it is suitable for a wide range of applications.

The safety relay features a compact design with dimensions of 23 x 120 x 102 mm, making it an ideal choice for installations where space is at a premium. It offers screw terminal connections for secure and straightforward wiring, and the device can be mounted using either screw or snap-on mounting methods, providing flexibility during installation.

Equipped with 2 normally open (NO) contacts, the 3TK2824-1AL20 ensures immediate response in the event of a safety breach, such as an open protective door or an activated emergency stop. The relay does not have delayed NO contacts, which means it is optimised for applications requiring instant safety measures.

The safety relay is designed for a single-channel or dual-channel operation, allowing for versatility in safety circuit design. It has a protective door monitoring function and supports automatic start features, enhancing both safety and productivity.

The 3TK2824-1AL20 is built to withstand challenging industrial conditions, with an operational temperature range of -25 to +60 degrees Celsius and a high level of resistance to vibrations and shocks. It also meets various international safety standards, including EN 60204-1 and IEC 61508, ensuring compliance with global safety regulations.

This Siemens safety relay is an essential component for any industrial safety system, providing peace of mind with its robust construction, reliable performance, and adherence to stringent safety standards.
Specification Description
Part Number 3TK2824-1AL20
Alternative Part Number 3TK28241AL20
Manufacturer Siemens
Voltage 230 V ac
Function Protective Door Monitoring
Contact Configuration 2 Normally Open (NO)
Connection Type Screw
Mounting Screw Mount; Snap-On Mount
Dimensions 22.5 x 120 x 120 mm
Approvals/Certifications BG, SUVA, UL, CSA, EN 60204-1, EN ISO 12100, EN 954-1, IEC 61508
Product Type Safety Relay
Mounting Position As required by the user
Conductor Cross-Section Solid: 1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²); Finely Stranded with wire end processing: 1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)
AWG Cable Types Solid: 2x (20 ... 14); Stranded: 2x (20 ... 14)
Safety Functions Emergency Stop Function, Monitoring of Protective Doors
Suitable for Monitoring of Floating Sensors, Safety Cut-Out Switch, Position Switch Monitoring, EMERGENCY-OFF Circuit Monitoring
Maximum Achievable SIL 1
Performance Level C
Environmental Conditions Suitable for Class A environments only
Sensor Inputs 1 Channel
Installation Altitude Up to 2000 m above sea level

What is the voltage rating for this safety relay?

The safety relay is rated for a 230 V ac supply voltage.

Can this safety relay be used for protective door monitoring?

Yes, the safety relay is designed for protective door monitoring applications.

What type of mounting options are available for this relay?

The relay can be mounted using screw or snap-on mounting methods.

What are the contact configurations of this relay?

This relay has 2 normally open (NO) contacts for safety-related circuits.

What are the dimensions of this safety relay?

The dimensions of the safety relay are 23 x 120 x 102 mm.

Is this relay suitable for emergency stop applications?

Yes, it is suitable for emergency stop applications as well as monitoring protective doors.

What is the maximum achievable Safety Integrity Level (SIL) for this relay?

The maximum achievable Safety Integrity Level for the 3TK2824-1AL20 is SIL 1.

What is the Performance Level (PL) rating of this safety relay?

The safety relay has a Performance Level (PL) rating of C.

Does this safety relay have a manual or automatic reset function?

This safety relay features an autostart function.

What type of terminals does this safety relay have for wire connections?

The relay is equipped with screw terminals for wire connections.

  • Monitoring and controlling protective doors in industrial settings
  • Emergency stop functions in machinery and plant equipment
  • Safety circuit monitoring for manufacturing lines
  • Monitoring position switches for precise machinery operations
  • Implementing safety functions in automated systems
  • Integration into safety systems for assembly lines
  • Use in safety-related parts of control systems in various industries
  • Providing reliable safety measures in automated material handling systems
  • Ensuring functional safety in compliance with machinery directives
  • Use in applications requiring Safety Integrity Level (SIL) 1 performance levels

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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