Key Specifications and Technical Details of Siemens 3RV1021-4DA10 Automatic Circuit Breaker Size S0
The Siemens 3RV1021-4DA10 is a top-tier automatic circuit breaker, specifically engineered for the protection of electric motors. This size S0 breaker offers a compact design paired with robust performance, making it ideal for both industrial and commercial applications.
- Rated operational current (In): Typically from 6A to 10A depending on specific model variations
- Breaking capacity: Up to 10kA, ensuring reliable short-circuit protection
- Tripping characteristics: Thermal-magnetic with adjustable overload protection, enhancing motor safety
- Voltage rating: 690V AC, supporting a wide range of industrial power supply lines
- Size: S0 – compact footprint for easy panel integration
- Standards compliance: IEC/EN 60947-2 certified, ensuring international reliability
- Additional features: Auxiliary contacts option, enabling integration with control systems
Top Use Cases for Siemens 3RV1021-4DA10 Circuit Breaker: Practical Applications
This automatic circuit breaker is widely favored in scenarios where electric motors require reliable overload and short-circuit protection. Its typical applications include:
- Industrial motor control centers (MCCs) for small to medium-sized motors
- Conveyor belt motor protection in manufacturing plants
- HVAC systems, ensuring safe motor operation
- Pumps and compressors in water treatment facilities
- Packaging and material handling equipment
By providing precise motor protection, the 3RV1021-4DA10 helps avoid costly downtime and motor damage, which is critical in process-dependent industries.
How to Set Up and Configure Siemens 3RV1021-4DA10: Step-by-Step Instructions
Proper configuration ensures that this circuit breaker delivers optimal protection. Follow these steps to set up the device:
- Mount the device: Secure the breaker in your distribution or motor control panel using DIN rail or screw mounts, depending on your setup.
- Connect wiring: Attach line and load connections as per electrical schematics. Ensure power is off during installation.
- Adjust overload settings: Set the thermal overload dial to match the motor’s nominal current rating (In) to ensure accurate tripping.
- Test mechanical operation: Manually operate the breaker toggle to verify movement and handle engagement.
- Integrate auxiliary contacts (optional): If control circuit feedback is needed, wire auxiliary contacts accordingly.
- Perform functional testing: Energize the circuit and simulate overload conditions to verify proper tripping.
Following these steps guarantees your Siemens 3RV1021-4DA10 breaker is ready to protect your motors effectively.
Advantages of Siemens 3RV1021-4DA10 Over Similar Models
The 3RV1021-4DA10 stands out due to its blend of compact size and high performance. Key advantages include:
- Space-saving design: Its S0 size makes it suitable for installations with limited space without compromising protection.
- Reliable motor protection: Thermal-magnetic tripping ensures sensitive and precise response to overloads and short circuits.
- Wide range of adjustability: Overload protection settings can be fine-tuned for various motor types and sizes.
- Strong build quality: Siemens’ proven durability extends equipment life and reduces maintenance costs.
- Compatibility: Works seamlessly with other Siemens motor control components for streamlined system integration.
Maintenance Tips to Extend the Lifespan of Siemens 3RV1021-4DA10
Maintaining the circuit breaker ensures long-term reliability and safety. Consider the following best practices:
- Regular visual inspections: Check for any signs of wear, cracks, or discoloration on the breaker housing.
- Clean contacts and terminals: Periodically clean electrical contacts to prevent oxidation and ensure good conductivity.
- Verify tripping mechanism: Test the breaker operation under controlled conditions to confirm proper tripping behavior.
- Ensure tight connections: Tighten loose terminals to prevent overheating or arcing.
- Environmental considerations: Keep the breaker in a dry, dust-free enclosure to avoid corrosion and electrical faults.
Implementing these measures will prolong the effective service life of your Siemens 3RV1021-4DA10 breaker.
How to Purchase Siemens 3RV1021-4DA10 Through Global Vendor Network (GVN)
GVN offers a streamlined procurement process for acquiring the Siemens 3RV1021-4DA10 automatic circuit breaker. Here’s how to order through GVN:
- Visit the GVN website: Navigate to the product page for the Siemens 3RV1021-4DA10 breaker.
- Fill out the contact form: Provide your company details, preferred contact information, and delivery address.
- Specify product requirements: Indicate the quantity, specific model number, and any accessory needs (e.g., auxiliary contacts).
- Submit your request: Confirm all details and send your inquiry.
- Receive confirmation & quotation: GVN sales team will respond promptly with pricing and delivery estimates.
- Finalize purchase: Complete payment and arrange for shipping according to your timeline.
GVN ensures authentic Siemens products, competitive pricing, and reliable customer support, making them a trusted partner for your automation needs.





