Image shown may not reflect the final product
Check similar products or call us on +44 20 4570 3439 for assistance
10 ready to ship
Image shown may not reflect the final product
Check similar products or call us on +44 20 4570 3439 for assistance
Express delivery
Lightning fast delivery if ordered within 00:00:00
Hassle-free returns
No hidden fees or duties
Swift dispatch and delivery
Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH2122-1SB40 |
| Alternative Part Number | 3RH21221SB40 |
| Manufacturer | Siemens |
| Product Type | Coupling contactor relay |
| Contact Configuration | 2 Normally Closed (NC) + 2 Normally Open (NO) contacts |
| Control Supply Voltage | 24 V DC |
| Operating Range Factor | 0.85 to 1.85 times the rated value of the magnet coil at DC |
| Surge Suppressor | Integrated suppressor diode |
| Size | S00 |
| Terminal Type | Screw terminal |
| Insulation Voltage | Rated at 690 V AC with degree of pollution 3 |
| Degree of Pollution | 3 |
| Surge Voltage Resistance | Rated value 6 kV |
| Shock Resistance | 10g / 5 ms, 5g / 10 ms (rectangular impulse); 15g / 5 ms, 8g / 10 ms (sine pulse) at DC |
| Mechanical Service Life | Typical 30 million switching cycles |
| Ambient Operating Temperature | -25 to +60 °C during operation; -55 to +80 °C during storage |
| No-load Switching Frequency | 10,000 operations per hour at AC/DC |
| Closing Power of Magnet Coil | 1.6 W at DC |
| Holding Power of Magnet Coil | 1.6 W at DC |
| Closing Delay | 30 to 100 ms at DC |
| Opening Delay | 7 to 13 ms at DC |
| Arcing Time | 10 to 15 ms |
| Auxiliary Contacts | 2 NC instantaneous contacts + 2 NO instantaneous contacts |
| Operating Current at AC-12 | Maximum 10 A |
| Operating Current at AC-15 | 10 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V rated value |
| Operating Current at DC-12 | 10 A at 24 V, 3 A at 110 V rated value |
| Reference Code | According to IEC 81346-2: K |
| Installation Altitude | Up to 2,000 metres above sea level |
The Siemens 3RH2122-1SB40 is a coupling contactor relay designed for switching auxiliary circuits within a diverse range of applications. This compact and reliable component is part of the SIRIUS product family, renowned for its high-quality industrial control products. The relay features 2 normally closed (NC) and 2 normally open (NO) contacts, making it versatile for various control circuit configurations.
Engineered for DC operation, it has a rated control supply voltage of 24 V DC and includes an integrated suppressor diode to protect against voltage spikes. The device is characterised by its size S00 screw terminal, facilitating easy and secure connections. With an insulation voltage rated at 690 V and a surge voltage resistance of 6 kV, it ensures robust performance even in environments with a high degree of electrical pollution.
The 3RH2122-1SB40 is designed to withstand demanding conditions, with an ambient operating temperature range of -25 to +60 °C and a storage temperature range of -55 to +80 °C. It boasts a mechanical service life of typically 30 million switching cycles, indicating its durability and longevity in continuous use.
This relay is suitable for a no-load switching frequency of 10,000 operations per hour for both AC and DC, demonstrating its capability to handle high-frequency operations. The control circuit includes a closing delay of 30 to 100 ms and an opening delay of 7 to 13 ms, ensuring precise control over switching actions.
The 3RH2122-1SB40 is a testament to Siemens' commitment to quality and reliability, making it an excellent choice for industrial applications that require a dependable solution for controlling auxiliary circuits.
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
Martin Ruml
‘Rapid delivery.’
Milan Kosík
‘Large selection of spare parts, fast delivery.’
Kayden
‘Services is great.’
Nathalie Jolicoeur
‘Great service. Thank you.’
Muswalin
‘Good packing, quickly delivery and responsible.’
Advance Lifts
‘Great customer service , we needed some assistance quickly and received it.’
Julien
‘Perfect quick delivery, good service.’
Thomas Roland Geaughan
‘Prompt and expert service. Ease of access to find the parts I needed.’
Irene
‘Fast delivery and prompt action.’
Similar Products
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 coupling contactor relay designed for switching auxiliary circuits in industrial applications.
Can you describe the contact configuration?
The contactor relay has a configuration of 2 normally closed (NC) and 2 normally open (NO) contacts.
What is the control supply voltage for this relay?
The control supply voltage for this relay is 24 V DC.
Is there any built-in surge protection?
Yes, the relay comes with an integrated suppressor diode for surge protection.
What is the size of this contactor?
The contactor is of size S00, which is a compact size for use in various applications.
What are the operating and storage temperature ranges for this relay?
The operating temperature range is from -25°C to +60°C, and the storage temperature range is from -55°C to +80°C.
What is the mechanical service life of the relay?
The mechanical service life of the relay is typically around 30 million switching cycles.
What is the insulation voltage rating for this device?
The insulation voltage rating with a degree of pollution 3 is 690 V.
How is the relay protected against shock and vibration?
The relay is designed to withstand shock resistance at rectangular impulse and sine pulse at specified g forces and durations, ensuring durability in industrial environments.
What certifications does this relay have?
The relay has general product approvals and may have additional certifications such as KC, Type Examination Certificate, and others relevant to its use in industrial applications.
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.
