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Siemens 3RV20 Motor Protection Circuit Breaker

Part Number: 3RV2011-1DA10 / 3RV2011-1JA10 / 3RV2021-4KA10
Manufacturer: Siemens
Model: 3RV20 Motor Protection Circuit Breaker
Rated Current: 0.11 – 100 A (adjustable depending on variant)
Breaking Capacity: up to 100 kA at 400 V AC
Operational Voltage: up to 690 V AC (3-phase)
Protection Rating: IP20 (with enclosure up to IP40/IP65)

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Product Description

The Siemens 3RV20 Motor Protection Circuit Breaker series is designed for reliable protection and control of motors in industrial environments. These MPCBs provide overload and short-circuit protection, phase failure sensitivity, and adjustable current settings for optimized motor performance. With a compact design and high breaking capacity, the 3RV20 series ensures safety, efficiency, and seamless integration with Siemens contactors and control systems. It is ideal for applications in automation, machinery, and energy distribution.

Standard Features

  • Motor Protection: Integrated overload and short-circuit protection

  • Adjustable Settings: Wide adjustment range for motor current

  • Phase Protection: Sensitive to phase loss and unbalanced loads

  • High Breaking Capacity: Up to 100 kA ensures reliable operation under fault conditions

  • Compact Design: Saves installation space in control panels

  • System Integration: Seamlessly compatible with Siemens contactors and control accessories

Technical Specifications

ModelRated Current RangeBreaking CapacityOperational VoltageProtection Rating
3RV2011-0HA100.11 – 0.16 A100 kA at 400 V ACUp to 690 V ACIP20
3RV2011-1DA102.5 – 4 A100 kA at 400 V ACUp to 690 V ACIP20
3RV2011-1JA1016 – 20 A100 kA at 400 V ACUp to 690 V ACIP20
3RV2021-4KA1050 – 63 A100 kA at 400 V ACUp to 690 V ACIP20
3RV2021-4MA1080 – 100 A100 kA at 400 V ACUp to 690 V ACIP20

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