Search Icon Account Icon Basket Icon

Siemens 5SM3644-4

Wrong part? Click here

£283.92 (ex. VAT)

Learn more about our conditions.
Payment icons
5SM3644-4

Image shown may not reflect the final product

Marvo Stock ID MV-7QCP
HS Code 853620
SKU 5SM3644-4
Condition New sealed
Warranty 12 months
Weight (kg) 0.54
Length (mm) 77.00
Width (mm) 72.00
Height (mm) 90.00

Express delivery

Lightning fast delivery if ordered within 00:00:00

Need it urgently?

Call: +44 20 4570 3439

Quoting Marvo Stock ID: MV-7QCP

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 5SM3644-4
Alternative Part Number 5SM36444
Manufacturer Siemens
Type Residual Circuit Breaker
Rated Voltage 400 V ac
Rated Current 40 A
Number of Poles 4 Pole
Short-Circuit Current Rating 10 kA
Tripping Characteristic Type B
Dimensions 71.9 x 70.4 x 90.4 mm
Mounting Type DIN Rail (REG)
Mounting Position Any
Net Weight 543 g
Ambient Temperature Range -25 to +45 °C (operating), -40 to +75 °C (storage)
Mechanical Operating Cycles Typically 10,000
Overvoltage Category III
Tightening Torque 2.5 to 3 N·m
Conductor Connection Cross-Section Solid: 1.5 to 25 mm², Stranded: 1.5 to 25 mm²
Product Features Silicon-free, Halogen-free
Degree of Protection IP20
Rated Frequency 50 to 60 Hz
Resistance to Impulse Current Rated at 3 kA
Selectivity Non-selective
Environmental Testing 28 cycles in accordance with IEC 60068-2-30
Approvals and Certifications General Product Approval, Declaration of Conformity, Environmental Confirmations

The Siemens 5SM3644-4 is a robust residual circuit breaker designed to provide superior protection in electrical circuits. Engineered for reliability, this 400 V ac, 40 A, 4-pole device is capable of handling a 10 kA short-circuit current, making it an ideal choice for a wide range of industrial and commercial applications. Its Type B sensitivity to universal currents ensures it can detect both pulsating direct and alternating residual currents, offering enhanced safety against electrical faults.

With a compact form factor measuring 71.9 x 70.4 x 90.4 mm, the Siemens 5SM3644-4 can be easily integrated into electrical installations without taking up excessive space. The unit is designed for any mounting position, providing flexibility in installation. It features a short-time delayed response, which helps to prevent nuisance tripping while still offering effective protection.

The device is constructed to withstand impulse currents up to 3 kA and operates reliably within an ambient temperature range of -25 to +45 degrees Celsius, ensuring consistent performance even in challenging environments. The circuit breaker is also halogen-free, contributing to a safer and more environmentally friendly operation.

With a mechanical operating life of approximately 10,000 cycles, the Siemens 5SM3644-4 is built to last, offering a dependable solution for circuit protection. Its finger and back-of-hand safe design ensure additional safety during installation and maintenance.

Overall, the Siemens 5SM3644-4 residual circuit breaker is a high-quality protective device that combines performance, durability, and safety, making it a valuable addition to any electrical system requiring reliable fault protection.

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 Dan

‘The ordering was fast and efficient, and everything arrived just as they said it would.’

Stars Advance Lifts

‘Great customer service , we needed some assistance quickly and received it.’

Stars Ms. Mia

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

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 residual circuit breaker?

The residual circuit breaker is rated for 400 V ac.

Can you specify the current rating of this device?

This device has a current rating of 40 A.

How many poles does this circuit breaker have?

The circuit breaker is a 4-pole device.

What type of residual current does this breaker detect?

It is a Type B residual circuit breaker, sensitive to universal currents.

What are the dimensions of this circuit breaker?

The dimensions are 71.9 mm in height, 70.4 mm in depth, and 90.4 mm in width.

What is the short-circuit current rating for this breaker?

The short-circuit current rating is 10 kA.

Is this circuit breaker suitable for any mounting position?

Yes, it can be mounted in any position.

What is the tripping characteristic of this breaker?

This breaker has a short-time delayed tripping characteristic.

Is the device halogen-free?

Yes, the device is halogen-free.

What is the mechanical operating life of this circuit breaker?

The mechanical operating life is typically 10,000 cycles.

What is the ambient temperature range for operating this breaker?

The operating ambient temperature range is from -25 °C to +45 °C.

Can this breaker be used with supplementary devices?

Yes, supplementary devices can be installed with this breaker.

What is the protection class of this circuit breaker?

The protection class is IP20 when installed in a distribution board with connected conductors.

What is the permissible impulse withstand current for this device?

The permissible impulse withstand current is 3 kA.

What conductor cross-sections can be connected to this breaker?

Conductor cross-sections from 1.5 mm² to 25 mm² can be connected to this breaker.

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

AI in manufacturing: AI-driven automation improving efficiency on a production line

An in-depth overview of AI in manufacturing

Marvo

Manufacturing has evolved remarkably over the centuries, transitioning from manual labour to mechanisation and automation. Another major shift, this time prompted by AI, is about to occur in our world today. A new age of smart manufacturing is dawning as AI is seamlessly integrated into manufacturing processes. This is bringing about significant improvements in efficiency, precision, and innovation.

8 min read January 7, 2025
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
See all articles