Search Icon Account Icon Basket Icon

Siemens 6ES7921-3AA20-0AA0

Wrong part? Click here

£50.99 (ex. VAT)

Image shown may not reflect the final product

Marvo Stock ID MV-13NW
HS Code 85369010
SKU 6ES7921-3AA20-0AA0
Condition Used
Category PLC Systems
Warranty 12 months
EAN 4025515065746

Express delivery

Lightning fast delivery if ordered within 00:00:00

Need it urgently?

Call: +44 20 4570 3439

Quoting Marvo Stock ID: MV-13NW

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 6ES7921-3AA20-0AA0
Alternative Part Number 6ES79213AA200AA0
Manufacturer Siemens
Category PLC Systems
Family Simatic S7
Description This is a Siemens Front Connector Module designed specifically for Digital 32 I/O Modules of the S7-300 series. It provides a reliable and efficient connection for your PLC system.
Operating Voltage DC / Rated value 24 V, Rated value 60 V, DC / maximum 60 V
Current Rated value 1 A, Continuous current / at DC / per plug-in contact / maximum 1 A, Total current / maximum 4 A
Operating Temperature 0 ... 60 °C
Ambient Temperature During operation 0 ... 60 °C, During storage -40 ... +70 °C
Number of Poles 40; of the front connector
Type of Electrical Connection Plug-in connection
Number of Terminals 8; 4 x 1 x L+, 4 x 1 x M
Mounting Type Direct mounting
Degree of Pollution 2
Overvoltage Category 2
Material Other
Colour Black
Net Weight 0.081 kg

The Siemens 6ES7921-3AA20-0AA0 is a front connector module designed for digital 32 I/O modules of the S7-300 series. This robust and reliable component ensures seamless connectivity within your PLC system. The module features a flat ribbon cable connection and power supply via spring terminals, offering a practical and efficient solution for your automation needs. With a total of 40 poles on the front connector and 4 plug contacts for the electrical connection, this module provides ample connection points for your system. It's designed for direct mounting, making installation straightforward. The module can handle an operating voltage of up to 60V DC and a current of 1A per plug-in contact. It's built to withstand operating temperatures ranging from 0 to 60°C, ensuring reliable performance in various environments. The module is black in colour and has a net weight of 0.081 kg. Please note, this product is subject to change without notice.

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 Anna

‘I can recommend quick, efficient, and professional.’

Stars Martin Ruml

‘Rapid delivery.’

Stars Nathalie Jolicoeur

‘Great service. Thank you.’

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 category of this part?

This part belongs to the PLC Systems category.

What family does this part belong to?

This part is from the Simatic S7 family.

Can you provide a brief description of this part?

Certainly, this is a Front Connector Module for Digital 32 I/O Modules of the S7-300.

What is the commodity code of this part?

The commodity code for this part is 85369010.

What is the operating voltage of this part?

The operating voltage at DC rated value for this part is 24V.

What is the current rated value of this part?

The current rated value of this part is 1A.

What is the operating temperature range for this part?

The operating temperature range for this part is 0 to 60 degrees Celsius.

What is the storage temperature range for this part?

The storage temperature range for this part is -40 to +70 degrees Celsius.

What is the net weight of this part?

The net weight of this part is 0.081 kg.

What is the colour of the enclosure of this part?

The colour of the enclosure of this part is black.

What is the type of electrical connection for the power supply of this part?

The type of electrical connection for the power supply of this part is a spring clamp.

What is the maximum wire length for this part?

The maximum wire length for this part is 30 metres.

What is the degree of pollution for this part?

The degree of pollution for this part is 2.

What is the overvoltage category for this part?

The overvoltage category for this part is 2.

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