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Specification & Description
| 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 |
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.
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Frequently Asked Questions
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.
