Image shown may not reflect the final product
Siemens
3TK2841-1BB40
Marvo Part ID: MV-2EZCUsed
£73.84 (ex. VAT)
Excellent
Siemens
If ordered within 00:00:00
Returns
You can return your part(s) and request a full refund at any time. Refer to our returns policy for more information.
Accepted payment methods:
Dan
‘The ordering was fast and efficient, and everything arrived just as they said it would.’
Irene
‘Fast delivery and prompt action.’
Trusted by
Used: This pre-owned product may show signs of wear, but it has been fully tested to ensure functionality. Despite any signs of previous use, this item is operational and ready for your business needs. Save on costs without compromising on performance. All used items are covered by a full warranty.
£73.84 (ex. VAT)
Specifications
| Specification | Description |
|---|---|
| Part Number | 3TK2841-1BB40 |
| Alternative Part Number | 3TK28411BB40 |
| Manufacturer | Siemens |
| Product Family | Safety Relay |
| Supply Voltage | 24 V DC |
| Mounting Type | Screw and Snap-on Mounting |
| Dimensions | Width: 22.5 mm, Height: 100 mm, Depth: 88 mm |
| Electrical Connection | Screw-type Terminals |
| Conductor Cross-section | Solid: 1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²), Stranded: 2x (20 ... 14) |
| Product Functions | Light barrier, protective door, automatic start, laser scanner, light grid, emergency stop, and step mat monitoring |
| Safety Integrity Level (SIL) | SIL3 |
| Performance Level (PL) | PL e |
| Category | Category 4 according to EN ISO 13849-1 |
| Hardware Fault Tolerance | 1 |
| Safety Device Type | Type B according to IEC 61508-2 |
| Ambient Operating Temperature | -25 … +60 °C |
| Protection Class IP | Enclosure: IP40, Terminal: IP20 |
| Certificates/Approvals | UL, CSA, TÜV, BG BIA, and others |
Commonly Asked Questions
Is my order covered by a warranty?
Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.
Read more...What payment methods do you accept?
We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.
Read more...What countries can Marvo deliver to?
Marvo currently delivers to the United Kingdom (excluding Northern Ireland), the United States of America and Germany. If you cannot find your delivery address at checkout, this is most likely because Marvo does not currently deliver to this location. There are ongoing efforts to make Marvo accessible to a global market, keep your eyes peeled as our service expands to new locations. All orders are sold with a streamlined delivery process ensuring that you get your part, fast. Marvo is designed to offer you quick, easy and reliable access to critical components and uses well established global shipping services, including but not limited to DHL, UPS and FedEx.
Read more...Is Marvo a credible parts supplier?
Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.
Read more...Have steps been taken to ensure quality control?
Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.
Read more...How do I create an account?
Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.
Read more...Peace of mind with every purchase
Marvo Approved
A seal of quality that ensures each part is fully inspected, every time. Purchase with confidence thanks to Marvo Approved.
Full warranty
All parts are covered by a comprehensive warranty. If something goes wrong, I’ll put it right.
Priority delivery
Advanced tracking and a streamlined delivery process ensure that you get your part, fast.
Committed to you
Engineered to ensure that you always have a quick, easy and reliable place to source automation and control components.
3TK2841-1BB40 Product Description
The Siemens 3TK2841 Series Safety Relay is a vital component designed to ensure the safe operation of machinery in various industrial settings. This safety relay, with its 24 V dc operating voltage and convenient screw mount design, is engineered to integrate seamlessly into your safety systems. Its compact dimensions of 23 x 120 x 120 mm make it an ideal choice for applications where space is at a premium.
Crafted for reliability, the 3TK2841-1BB40 model boasts electronic enabling circuits (EC) and is capable of handling both single-channel and two-channel safety-related wiring of inputs, providing flexibility in system design. The device is also equipped with two instantaneous safety-related semiconductor outputs, enhancing its functionality in critical safety applications.
This safety relay is suitable for a variety of safety functions, including light barrier monitoring, protective door monitoring, emergency stop functions, and pressure-sensitive mat monitoring, among others. Its design allows for both automatic and monitored start modes, giving you the control needed for different operational requirements.
The 3TK2841-1BB40 is designed to meet stringent safety standards, achieving a Safety Integrity Level (SIL) of 3 and a Performance Level (PL) of e, as per EN ISO 13849-1. It also conforms to Category 4 according to EN 954-1, ensuring a high level of reliability and safety for your machinery.
With certifications from TÜV, UL, and CSA, this safety relay is recognised for its quality and compliance with international safety regulations. Its robust construction and finger-safe terminals provide additional protection against electrical shock, making it a safe choice for operators and maintenance personnel alike.
In summary, the Siemens 3TK2841-1BB40 Safety Relay is a dependable and versatile solution for enhancing the safety of your industrial automation systems, ensuring that your operations run smoothly and safely.
Frequently Asked Questions
What is the voltage rating for this safety relay?
The safety relay operates at a control supply voltage of 24 V DC.
Can this safety relay be used in any mounting position?
Yes, the safety relay is designed for flexible installation and can be mounted in any position.
What type of connections does this safety relay support?
It supports screw-type terminals for secure and reliable electrical connections.
What is the width of the safety relay?
The safety relay has a width of 22.5 mm, making it suitable for compact installation spaces.
Is this safety relay suitable for emergency stop functions?
Yes, the safety relay is designed for emergency stop functions, ensuring safe and reliable operation in critical situations.
What is the maximum installation altitude for this safety relay?
The safety relay can be installed at a maximum altitude of 2,000 meters above sea level.
What is the ambient temperature range for operating this safety relay?
The safety relay can operate within an ambient temperature range of -25 to +60 degrees Celsius.
Does this safety relay have a protection class rating?
Yes, the housing of the safety relay has a protection class rating of IP40, and the terminal has a rating of IP20.
What is the Safety Integrity Level (SIL) of this safety relay?
This safety relay has a Safety Integrity Level (SIL) of 3, according to IEC 61508.
Can this safety relay be used for monitoring light barriers?
Yes, it is suitable for light barrier monitoring applications.
What is the Performance Level (PL) rating of this safety relay?
The safety relay has a Performance Level (PL) rating of 'e' according to EN ISO 13849-1.
Is this safety relay suitable for use in residential environments?
This product is suitable for Class A environments only and may cause radio-frequency interference in residential environments, which may require the user to take appropriate measures.
