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Check similar products or call us on +44 20 4570 3439 for assistance
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Specification & Description
The Siemens 3RV2421-4DA20 is a sophisticated motor protection circuit breaker designed to safeguard motors in industrial applications. This component is engineered to provide reliable protection against overload and short-circuit conditions, ensuring the longevity and efficiency of your motor-driven systems. With an adjustable pick-up value current of the current-dependent overload release ranging from 18 to 25 A, it offers flexibility to match specific motor requirements.
Constructed with durability in mind, the 3RV2421-4DA20 features a robust design that can withstand the rigours of demanding industrial environments. Its compact dimensions, with a height of 119 mm, a width of 45 mm, and a depth of 97 mm, make it suitable for installation in space-constrained areas. The device can be easily mounted onto a 35 mm standard mounting rail according to DIN EN 60715, facilitating a straightforward integration into your existing electrical setup.
The circuit breaker is equipped with spring-loaded terminals for the main current circuit, allowing for a secure and maintenance-free electrical connection. It is capable of accommodating a range of conductor cross-sections, ensuring compatibility with various wiring configurations. The unit's handle display version provides a clear indication of the switching status, adding to its user-friendly operation.
With a mechanical service life of approximately 100,000 switching cycles and an electrical endurance also rated at 100,000 cycles, the Siemens 3RV2421-4DA20 is built to deliver consistent performance over time. It operates effectively within a temperature range of -20 to +60 °C, making it suitable for a wide range of ambient conditions.
The 3RV2421-4DA20 is a testament to Siemens' commitment to quality and innovation, offering a reliable solution for motor protection that meets the demands of modern industrial applications. Whether you're looking to protect new installations or upgrade existing systems, this motor protection circuit breaker is an excellent choice for enhancing operational safety and 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.
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Read more...Peace of mind with every purchase
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Our service to you
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.
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.
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.
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 type of device is this?
This is a motor protection circuit breaker designed to protect electric motors from overloads, short circuits, and phase failures.
Can this device be used in any mounting position?
Yes, the device can be mounted in any position, offering flexibility in installation.
What is the rated operational voltage of this device?
The rated operational voltage of the device is up to 690V.
What is the significance of the trip class for this device?
The trip class, CLASS 10, indicates the time in seconds within which the device will trip in the event of an overload. For CLASS 10, this would typically be within 10 seconds at 600% of the rated current.
Is there a ground fault detection feature in this device?
No, this device does not have a ground fault detection feature.
What is the short-circuit current breaking capacity of this device?
The device has different breaking capacities depending on the voltage: 100kA at 240V, 55kA at 400V, 10kA at 500V, and 4kA at 690V.
What type of terminals does this device have for the main current circuit?
The device is equipped with spring-loaded terminals for the main current circuit.
What is the mechanical service life of the main contacts?
The main contacts have a mechanical service life of typically 100,000 switching cycles.
What are the dimensions of this device?
The device measures 119mm in height, 45mm in width, and 97mm in depth.
How can I determine the correct conductor cross-sections for connection?
The device can connect solid or stranded conductors of 2x (1 ... 10 mm²), finely stranded with core end processing of 2x (1 ... 6 mm²), and finely stranded without core end processing of 2x (1 ... 6 mm²).
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.
