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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RV2021-4CA20 |
| Alternative Part Number | 3RV20214CA20 |
| Manufacturer | Siemens |
| Product Type | Circuit Breaker |
| Mounting Style | DIN Rail Mount |
| Number of Poles | 3 Poles |
| Rated Operating Voltage | 690 V ac |
| Rated Operating Current | 22 A |
| Short Circuit Breaking Capacity | 2 kA |
| Tripping Characteristic | Adjustable pick-up value current of the current-dependent overload release |
| Electrical Endurance | 100,000 switching cycles typical |
| Mechanical Service Life | 100,000 switching cycles typical |
| Operating Frequency | 50...60 Hz |
| Operating Power at AC-3 | 230 V: 5,500 W; 400 V: 11,000 W; 500 V: 11,000 W; 690 V: 18,500 W |
| Ambient Operating Temperature | -20...+60 °C |
| Protection Type | Increased safety, finger-safe |
| Terminal Connection Type | Spring-loaded terminals |
| Approval | ATEX certified for use in hazardous locations |
The Siemens 3RV2021-4CA20 is a robust circuit breaker designed for motor protection, ensuring efficient operation and safety in a variety of industrial applications. This DIN Rail mountable device is engineered to handle a rated operating voltage of up to 690 V ac and can accommodate an operating current of 22 A. Its compact design, with dimensions of 119 mm in height, 45 mm in width, and 96 mm in depth, allows for easy installation in space-constrained environments.
Crafted for durability and reliability, the 3RV2021-4CA20 features a three-pole configuration and is equipped with a magnetic short-circuit trip mechanism to safeguard against electrical faults. The circuit breaker is also characterised by its adjustable pick-up value current, ranging from 16 to 22 A, which provides tailored protection for motors based on their specific requirements.
The device's spring-loaded terminals facilitate a secure and maintenance-friendly electrical connection, while its compliance with IP20 protection standards ensures a degree of protection against solid objects. With a mechanical service life of approximately 100,000 switching cycles, this circuit breaker is built to last and perform consistently in demanding industrial settings.
The 3RV2021-4CA20 is a testament to Siemens' commitment to quality and innovation, offering a reliable solution for motor protection that meets the rigorous demands of modern industry.
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.
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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.
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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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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.
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Frequently Asked Questions
What type of device is this circuit breaker designed for?
This Siemens circuit breaker is designed primarily for motor protection, ensuring safe operation and disconnection in the event of an overload or short circuit.
Can this circuit breaker be mounted on a DIN rail?
Yes, it is suitable for DIN rail mounting, which allows for easy installation and removal in electrical enclosures.
What is the maximum operating voltage for this circuit breaker?
The maximum operating voltage for this circuit breaker is 690 V ac, making it suitable for a wide range of industrial applications.
Is there a specific ambient temperature range for the operation of this circuit breaker?
The circuit breaker is designed to operate within an ambient temperature range of -20 to +60 °C, ensuring reliable performance in various environmental conditions.
What is the tripping characteristic of this circuit breaker?
The tripping characteristic of this circuit breaker is designed to provide Class 10 protection, which means it will trip within 10 seconds at 600% of its rated current, providing quick protection for motors.
How many poles does this circuit breaker have?
This circuit breaker has 3 poles, which means it can be used to protect three-phase electrical circuits.
What is the rated operating current for this circuit breaker?
The rated operating current for this circuit breaker is 22 A, which is the maximum current it can handle under normal operating conditions.
Does this circuit breaker have a short-circuit protection feature?
Yes, it includes a magnetic short-circuit protection feature to quickly disconnect the circuit in the event of a short-circuit condition.
What type of terminals does this circuit breaker have for the main current circuit?
This circuit breaker is equipped with spring-loaded terminals for the main current circuit, which provide a secure and maintenance-free connection.
Is the circuit breaker finger-safe?
Yes, it is designed with finger-safe protection to prevent accidental contact with live parts, enhancing safety during operation and maintenance.
Part conditions explained
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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.
