Search Icon Account Icon Basket Icon

Siemens 3TK2820-1CB30

Wrong part? Click here

Sold out

This part is currently sold out

Please check back soon.

Back to home Create an account
3TK2820-1CB30

Image shown may not reflect the final product

Marvo Stock ID MV-1UKV
HS Code 85364900
SKU 3TK2820-1CB30
Warranty 12 months
Weight (kg) 1.00
Length (mm) 210.00
Width (mm) 170.00
Height (mm) 60.00

More about this product

Chevron

Specification & Description

View now
Chevron

Commonly Asked Questions

View now
Chevron

Customer Reviews

View now
Chevron

Similar Products

View now

Specification & Description

Specification Description
Part Number 3TK2820-1CB30
Alternative Part Number 3TK28201CB30
Manufacturer Siemens
Product Type Safety Relay
Supply Voltage 24 V dc
Mounting Type Screw Mount
Dimensions 22.6 x 118 x 103.6 mm
Product Family SIRIUS
Design For EMERGENCY-STOP units
Protection Class IP IP40 for enclosure, IP20 for terminal
Insulation Voltage Rated at 300 V
Ambient Operating Temperature Range -25 ... +60 °C
Storage Temperature Range -40 ... +80 °C
Air Pressure 90 ... 106 kPa according to SN 31205
Relative Humidity 10 ... 95 %
Installation Altitude Up to 2000 m above sea level
Vibration Resistance 5 ... 500 Hz: 0.75 mm
Shock Resistance 15g / 11 ms
Surge Voltage Resistance Rated at 4000 V
EMC Emitted Interference Compliant with IEC 60947-5-1, IEC 61000
Safety Integrity Level (SIL) SIL3 according to IEC 61508
Performance Level (PL) PL e according to EN ISO 13849-1
Category Category 4 according to EN ISO 13849-1
Hardware Fault Tolerance According to IEC 61508
Number of Sensor Inputs 1-channel or 2-channel
Safety-Related Wiring of Inputs Single-channel and two-channel
Number of Outputs 3 NO contacts for safety-related instantaneous contact, 1 NC contact for signalling function
Stop Category 0 according to DIN EN 60204-1
Certificates/Approvals TÜV certificate, UL approval

The Siemens 3TK2820 Series Safety Relay is a vital component designed to ensure the safe operation of machinery in various industrial settings. This particular model, the 3TK2820-1CB30, operates with a 24 V dc supply and is engineered for screw mounting, making it both versatile and easy to install. With dimensions of 22.6 x 118 x 103.6 mm, it is compact enough to fit into a range of control cabinets and panels.

This safety relay is specifically tailored for use with emergency stop units, providing immediate response to potential hazards by initiating a safe and controlled shutdown of machinery. It features a robust design that meets the requirements for IP40 protection class for the enclosure and IP20 for the terminals, ensuring it is safeguarded against particulate ingress and accidental contact.

The 3TK2820-1CB30 is equipped with three normally open (NO) contacts for safety-related instantaneous switching and one normally closed (NC) contact for signalling functions. It supports both single-channel and two-channel wiring for sensor inputs, enhancing its flexibility for integration into safety systems. The relay is also designed with cross-circuit proofing, adding an extra layer of security to your safety circuitry.

In terms of safety performance, this model achieves a Safety Integrity Level (SIL) of 3 according to IEC 61508, a Performance Level (PL) of e according to EN ISO 13849-1, and a Category 4 according to the same standard. These ratings indicate a high level of reliability and safety for the protection of personnel and equipment.

The 3TK2820-1CB30 is suitable for a variety of safety applications, including protective door monitoring, emergency-off function, and position switch monitoring. Its ability to monitor floating sensors and safety-related circuits makes it a versatile choice for a wide range of industrial safety requirements.

With its combination of compact design, robust safety features, and flexible application, the Siemens 3TK2820-1CB30 Safety Relay is an essential component for any industrial safety system, contributing to the maintenance of high safety standards while ensuring operational efficiency.

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...

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

Stars Kayden

‘Services is great.’

Stars Nathalie Jolicoeur

‘Great service. Thank you.’

Stars Muswalin

‘Good packing, quickly delivery and responsible.’

Learn more about Marvo
 

Our service to you

Stopwatch

Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.

Shield

No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.

Checkmark

Clear Pricing with No Hidden Fees: What you see is what you pay, transparent pricing with no extra costs, ever. Rest assured, all taxes and fees are already included in your final price.

Stars

Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.

Frequently Asked Questions

What is the voltage rating for this safety relay?

The safety relay operates at a control supply voltage of 24 V AC/DC.

Can this safety relay be used for emergency stop functions?

Yes, the safety relay is designed for use with EMERGENCY-STOP units and includes an EMERGENCY-OFF function.

What are the dimensions of this safety relay?

The dimensions of the safety relay are 22.5 mm in width, 103.6 mm in height, and 118 mm in depth.

What type of connections does this safety relay support?

The safety relay supports screw-type terminal connections.

What is the maximum operating altitude for this safety relay?

The safety relay can be operated at a maximum altitude of 2,000 metres above sea level.

Is this safety relay suitable for use in residential environments?

No, this product is suitable for Class A environments only and may cause radio-frequency interference in residential environments.

What is the insulation voltage rated value for this safety relay?

The insulation voltage rated value for the safety relay is 300 V.

What is the product's IP rating?

The enclosure has an IP40 rating, and the terminal has an IP20 rating, providing protection against solid objects and fingers.

What is the maximum switching capacity for the relay outputs?

The maximum switching capacity for the relay outputs at AC-15 is 4 A for both 24 V and 230 V.

How many safety-related instantaneous contacts does this relay have?

The 3TK2820-1CB30 safety relay has 3 safety-related instantaneous NO contacts.

What certifications does this safety relay hold?

The safety relay holds TÜV and UL certifications, ensuring compliance with industry safety standards.

Can this relay be used for protective door monitoring?

Yes, it is suitable for protective door monitoring applications.

What is the mechanical service life of this safety relay?

The mechanical service life of the relay is typically 10 million switching cycles.

Does this safety relay have a feedback input?

Yes, it includes a feedback input for monitoring connected devices.

Part condition box

Part conditions explained

We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:

New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

The Smart Part

Factories implementing AI-driven systems, highlighting the benefits of investing in artificial intelligence.## Should You Be Investing in Artificial Intelligence?

Should you be investing in artificial intelligence?

Marvo

Just a few years back, investing in AI only existed in the realm of science fiction. It was a futuristic technology that could be found solely in books or in Hollywood films. Fast forward to todays world and AI is rapidly becoming an integral part of our daily lives. It is reshaping how we work, communicate and solve complex problems.

4 min read December 13, 2024
The top 10 ways to improve your supply chain strategy

10 advanced techniques to improve your supply chain strategy

Marvo

A robust supply chain strategy is crucial in today’s interconnected and rapidly evolving global economy. Problems that businesses face include shifting consumer preferences, interruptions in supply, and an increasing focus on sustainability. This article delves into ten cutting-edge methods, in order to keep supply chain tactics robust, efficient, and competitive.

7 min read November 22, 2024
What is supply chain optimisation? Automation technologies in modern supply chains

What is supply chain optimisation?

Marvo

Supply chain optimisation is the key to navigating today's rapidly evolving manufacturing landscape. By improving their operations and logistics, businesses can reach greater levels of efficiency. This refinement also leads to strategic agility. As a result, companies position themselves to adapt to new challenges and seize opportunities.

6 min read November 1, 2024
See all articles