Search Icon Account Icon Basket Icon

Siemens 3RU2126-4AB0

Wrong part? Click here

Sold out

This part is currently sold out

Please check back soon.

Image shown may not reflect the final product

Marvo Stock ID MV-7FCZ
HS Code 85364900
SKU 3RU2126-4AB0
Warranty 12 months
Weight (kg) 1.00
Length (mm) 320.00
Width (mm) 250.00
Height (mm) 250.00

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 3RU2126-4AB0
Alternative Part Number 3RU21264AB0
Manufacturer Siemens
Type Overload Relay
Contact Configuration 1NO; 1NC
Rated Voltage 690 V ac
Rated Current 16 A
Mounting Style Vertical
Connection Type Screw
Dimensions 45 x 107 x 84.8 mm
Number of Poles 3
Operating Temperature Range -40 to +70 °C
Insulation Voltage Rated at 690 V with degree of pollution 3
Altitude of Installation Site Up to 2,000 metres above sea level
Relative Humidity Up to 90% during operation
Shock Resistance 8g / 10 ms
Impulse Voltage Resistance Rated at 6 kV
Real Loss Power Typical total 3.9 W
Trip Class CLASS 10
Size of Overload Relay S0
Size of Contactor Can be combined with company-specific S0
Service Power at AC-3 At 400 V rated value 7.5 kW
Protection Class IP20
Mean Time to Failure (MTTF) With high demand rate 2,280 years
Proportion of Dangerous Failures With low demand rate 50%
Failure Rate (FIT Value) With low demand rate 50 FIT
T1 Value For proof test interval or service life 20 years
Protection against Electrical Shock Finger-safe
Commodity Code 853649

The Siemens 3RU2126-4AB0 is a high-quality overload relay designed to provide efficient motor protection. This component is part of the SIRIUS product family, renowned for its reliability and performance in industrial applications. With a thermal overload release mechanism, it ensures protection for motors by monitoring and reacting to excessive current draw.

This overload relay is adjustable for current response values ranging from 11 to 16 A, making it versatile for various motor sizes and applications. It is engineered to be compatible with size S0 contactors, allowing for seamless integration into existing systems. The device is rated for use with an operating voltage of up to 690 V AC, and it can handle operating currents up to 16 A at AC-3, with a corresponding service power of 7.5 kW at 400 V.

The 3RU2126-4AB0 is designed with a trip class of CLASS 10, providing a quick response to prevent motor damage due to overload conditions. The unit's compact dimensions, with a height of 85 mm, a width of 45 mm, and a depth of 85 mm, make it suitable for installations where space is at a premium.

For ease of installation and maintenance, the overload relay features screw-type terminals for both the main and auxiliary circuits. It is built to withstand challenging industrial environments, with an operational temperature range of -40 to +70 °C and a shock resistance that complies with IEC 60068-2-27 standards.

In summary, the Siemens 3RU2126-4AB0 overload relay is a dependable and adaptable solution for motor protection, offering precise overload prevention to enhance the longevity and safety of your motor-driven equipment.

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 Andreas Boehm

‘Excellent service. The right gear and the right price,well packed and delivered on time.’

Stars Muswalin

‘Good packing, quickly delivery and responsible.’

Stars Ms. Mia

‘Quick response, good item, delivery on schedule.’

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 overload relay?

The overload relay is rated for a maximum operating voltage of 690 V ac.

Can this overload relay be mounted on a contactor?

Yes, this overload relay is designed for direct mounting onto a contactor.

What is the current adjustment range of this overload relay?

The current adjustment range of the overload relay is from 11 A to 16 A.

What are the dimensions of this overload relay?

The dimensions of the overload relay are 45 x 107 x 84.8 mm.

What type of terminals does this overload relay have?

This overload relay is equipped with screw-type terminals for both the main and auxiliary circuits.

What is the trip class of this overload relay?

The trip class of this overload relay is CLASS 10.

What is the ambient temperature range for operating this overload relay?

The ambient temperature range for operating the overload relay is from -40 °C to +70 °C.

What is the insulation voltage of this overload relay?

The insulation voltage of the overload relay, with a degree of pollution 3, is rated at 690 V.

What is the protection class of this overload relay?

The protection class for the frontal/front side of this overload relay is IP20.

How many auxiliary contacts does this overload relay have?

This overload relay has 1 Normally Closed (NC) and 1 Normally Open (NO) auxiliary contact.

What is the maximum altitude for installing this overload relay?

The maximum altitude for installing the overload relay is 2,000 meters above sea level.

Is this overload relay suitable for use in any mounting position?

Yes, the overload relay can be mounted in any position for flexible installation.

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