3RV2021-4BA10

Siemens 3RV2021-4BA10 is a motor starter protector, part of the 3RV20 series, designed to provide protection for motors against overloads and short circuits.

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Description

Siemens 3RV2021-4BA10 is a motor starter protector, part of the 3RV20 series, designed to provide protection for motors against overloads and short circuits. Let’s explore its features and specifications:

Key Features:

  1. Motor Protection: Offers reliable protection for motors against overloads, phase failures, and short circuits, ensuring the safety and longevity of motor-driven equipment.
  2. Compact Design: Features a compact and space-saving design, suitable for use in various industrial applications and electrical panels with limited space.
  3. Thermal Overload Protection: Utilizes a bimetallic strip that responds to the heating effect caused by overload currents, tripping the device when the temperature reaches a critical threshold.
  4. Magnetic Short-Circuit Protection: Incorporates a magnetic trip mechanism that quickly detects and responds to short-circuit currents, providing fast and effective protection against short circuits.
  5. Adjustable Trip Current: Allows for adjustment of the overload trip current to match the specific requirements of the motor being protected, providing flexibility and customization.
  6. Manual/Automatic Reset: Supports both manual and automatic reset modes after a trip, allowing for convenient reset and restart of the motor starter protector.
  7. Test/Isolation Function: Includes a test button for manual testing of the device’s functionality and an isolation function for safe maintenance and servicing.
  8. Wide Current Range: Available in various current ratings to accommodate different motor sizes and applications, ensuring compatibility with a wide range of motors.
  9. DIN Rail Mounting: Designed for easy installation on DIN rails, facilitating quick and secure mounting in electrical panels and enclosures.

Technical Specifications:

  • Manufacturer: Siemens
  • Product Series: 3RV20 Series Motor Starter Protectors
  • Model Number: 3RV2021-4BA10
  • Pole Configuration: Typically available in three-pole (3P) configuration
  • Rated Current Range: Varies depending on the specific model, such as 12A, 16A, 25A, etc.
  • Adjustable Trip Class: Allows for adjustment of the overload trip class, such as Class 10, Class 20, or Class 30, to match the motor’s characteristics.
  • Rated Voltage: Designed to operate within a specific voltage range, typically compatible with common industrial voltage levels.
  • Short-Circuit Breaking Capacity: Specifies the maximum short-circuit current that the device can safely interrupt, ensuring reliable protection under short-circuit conditions.
  • Standards Compliance: Meets relevant international standards for motor protection devices, ensuring quality, safety, and compliance with industry regulations.

Applications:

  • Motor Control Panels: Used in motor control panels and motor control centers (MCCs) to protect motors in industrial and commercial applications.
  • Pump and Fan Control: Provides protection for pumps, fans, compressors, and other motor-driven equipment commonly found in HVAC systems, water treatment plants, and manufacturing facilities.
  • Conveyor Systems: Ensures reliable protection for conveyor belts and motorized conveyor systems used in material handling and logistics applications.
  • Machine Tools: Protects motors in machine tools, CNC machines, and manufacturing equipment from overloads and short circuits, minimizing downtime and maintenance costs.

Benefits:

  • Enhanced Motor Protection: Protects motors from damage due to overload currents, phase failures, and short circuits, extending motor lifespan and reducing repair costs.
  • Increased Operational Safety: Enhances operational safety by preventing motor-related accidents, electrical fires, and equipment damage caused by electrical faults.
  • Flexible Adjustment: Allows for adjustment of trip currents and settings to match specific motor requirements and operating conditions, providing customization and versatility.
  • Easy Installation: DIN rail mounting and simple wiring connections streamline installation, saving time and labor costs during panel assembly and commissioning.
  • Reliable Performance: Designed and manufactured to meet stringent quality standards, ensuring reliable and consistent performance in demanding industrial environments.

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