Description
Product Name: 3TK2827-1AJ20 Siemens Power module
Product details:
The Siemens 3TK2827-1AJ20 is a mechanical safety relay designed for use in safety-related applications. It is a basic unit that provides essential functions for emergency stop and protective door monitoring. The relay features screw terminals for easy connection and offers a monitored start function.
Key Features and Specifications
- Relay enabling circuits (EC):
- 115V AC
- Instantaneous: 2 NO
- Delayed: 2 NO, 0.5…30 s adjustable
- Signaling contact (SC): 1 NC
- Mounting: Screw terminal
- Overall width: 45 mm
- Maximum achieved SIL: 3/2
- PL: e/d
- UL File: E44653 in Vol.2 Sec.66
Advantages
- Enhanced safety: The 3TK2827-1AJ20 contributes to a higher level of safety in industrial applications by providing reliable emergency stop and protective door monitoring functions.
- Flexible configuration: The adjustable delayed contacts allow for customization to meet specific application requirements.
- Easy installation: Screw terminals simplify the connection process.
- Proven reliability: Siemens is a well-established brand known for producing high-quality and reliable components.
Precautions
- Discontinued product: Please note that the 3TK2827-1AJ20 is no longer in production. Siemens recommends using the successor product, 3SK1121-1CB42, for new projects.
- Professional installation: The relay should be installed and configured by qualified personnel in accordance with the manufacturer’s instructions and applicable safety standards.
- Compliance with standards: Ensure that the relay is used in compliance with all relevant safety standards and regulations.
Applications
The 3TK2827-1AJ20 is suitable for a wide range of applications, including:
- Machine safety: Emergency stop circuits, protective door monitoring, and other safety-related functions.
- Process control: Safety interlocks and monitoring of critical processes.
- Automation systems: Integration into larger automation systems for enhanced safety.
Additional Information
- Product lifecycle: PM490: Start of final year of support
- Product discontinued since: April 1, 2018
- Price: Please refer to the Siemens Industry Mall for the most up-to-date pricing information.
- Technical documentation: Detailed technical documentation, including datasheets and installation manuals, is available on the Siemens website.

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Colour:new Warranty: 12 months
Lead Time:3-day working day Country of origin: Sweden
Price: Please contact us Product weight:0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders.
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