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3RV1021-4BA10 | Siemens Sirius Motor Protection Circuit Breaker With Thermomagnetic Trip 20 A
- Regular price
- $147.00
- Sale price
- $147.00
- Regular price
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Product Description P/N: 3RV1021-4BA10
Description
The Siemens 3RV1021-4BA10 is a motor protection circuit breaker designed to provide overload, short-circuit, and phase-failure protection for three-phase motors. Featuring a rotary dial for adjustable FLA settings and integrated thermomagnetic trip elements, it ensures safe and reliable motor operation in industrial environments.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | 3RV1021-4BA10 |
| Subcategory | Molded Case Circuit Breaker |
| Range | Sirius |
| Product Type | Circuit Breaker |
| Destination | Motor Protection |
| Continuous Rated Value | 20 A |
| Trip Class | Class 10 |
| Short Circuit Protection | Thermomagnetic |
| Rated Operating Voltage | 690 V |
| Per-Pole Rated Current | 3.5 W |
| Rated Current (Total) | 10.5 W |
| Surge Voltage Resistance | 6000 V |
| Number of Poles | 3 |
| Auxiliary Switch | Yes |
| Phase Failure Detection | Yes |
| Shock Resistance | 25 g / 11 ms |
| Max Altitude | 2000 m |
| Frequency | 15 operations/hour (AC-3 max) |
| Front Protection | IP20 |
| Mounting Type | Panel |
| Enclosure Type | IP00 |
| Dimensions | 97 mm H × 45 mm W × 96 mm D |
| Connection Type | Screw Terminals |
| Application | Motor overload and short-circuit protection |
Information About 3RV1021-4BA10
The 3RV1021-4BA10 is a Siemens Sirius series motor protection circuit breaker designed to safeguard three-phase motors against overloads, short circuits, and phase loss. Using a rotary adjustment dial, users can set the motor's full-load amperage to ensure precise thermal protection aligned with the motor rating. Its thermomagnetic trip mechanism provides fast response to high-fault currents while offering Class 10 overload protection for reliable motor startup and operation. Built with durable construction and IP20 front protection, the device integrates easily into control panels and provides dependable protection in a wide range of industrial applications.
Key Features:
- Thermomagnetic Trip Technology: Enables precise overload protection and rapid short-circuit response for motor circuits.
- Adjustable FLA Settings: Rotary dial allows accurate alignment with motor full-load current characteristics.
- Integrated Phase-Failure Protection: Prevents motor damage caused by missing or unbalanced phases.
- Robust Industrial Construction: Withstands up to 25 g shock and operates reliably up to 2000 m altitude.
- Built-In Auxiliary Contact: Allows integration with control circuits for fault indication and system monitoring.
- Compact Panel-Mount Design: Measures only 97 × 45 × 96 mm for efficient use of cabinet space.
- High Surge Withstand Capability: Rated for 6 kV transient resistance in demanding power environments.
- Sirius System Compatibility: Fits seamlessly within Siemens’ modular motor control and protection architecture.
The 3RV1021-4BA10 delivers the reliability and precision required for safeguarding industrial motors against overloads, short circuits, and phase-failure conditions.
Description
The Siemens 3RV1021-4BA10 is a motor protection circuit breaker designed to provide overload, short-circuit, and phase-failure protection for three-phase motors. Featuring a rotary dial for adjustable FLA settings and integrated thermomagnetic trip elements, it ensures safe and reliable motor operation in industrial environments.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | 3RV1021-4BA10 |
| Subcategory | Molded Case Circuit Breaker |
| Range | Sirius |
| Product Type | Circuit Breaker |
| Destination | Motor Protection |
| Continuous Rated Value | 20 A |
| Trip Class | Class 10 |
| Short Circuit Protection | Thermomagnetic |
| Rated Operating Voltage | 690 V |
| Per-Pole Rated Current | 3.5 W |
| Rated Current (Total) | 10.5 W |
| Surge Voltage Resistance | 6000 V |
| Number of Poles | 3 |
| Auxiliary Switch | Yes |
| Phase Failure Detection | Yes |
| Shock Resistance | 25 g / 11 ms |
| Max Altitude | 2000 m |
| Frequency | 15 operations/hour (AC-3 max) |
| Front Protection | IP20 |
| Mounting Type | Panel |
| Enclosure Type | IP00 |
| Dimensions | 97 mm H × 45 mm W × 96 mm D |
| Connection Type | Screw Terminals |
| Application | Motor overload and short-circuit protection |
Information About 3RV1021-4BA10
The 3RV1021-4BA10 is a Siemens Sirius series motor protection circuit breaker designed to safeguard three-phase motors against overloads, short circuits, and phase loss. Using a rotary adjustment dial, users can set the motor's full-load amperage to ensure precise thermal protection aligned with the motor rating. Its thermomagnetic trip mechanism provides fast response to high-fault currents while offering Class 10 overload protection for reliable motor startup and operation. Built with durable construction and IP20 front protection, the device integrates easily into control panels and provides dependable protection in a wide range of industrial applications.
Key Features:
- Thermomagnetic Trip Technology: Enables precise overload protection and rapid short-circuit response for motor circuits.
- Adjustable FLA Settings: Rotary dial allows accurate alignment with motor full-load current characteristics.
- Integrated Phase-Failure Protection: Prevents motor damage caused by missing or unbalanced phases.
- Robust Industrial Construction: Withstands up to 25 g shock and operates reliably up to 2000 m altitude.
- Built-In Auxiliary Contact: Allows integration with control circuits for fault indication and system monitoring.
- Compact Panel-Mount Design: Measures only 97 × 45 × 96 mm for efficient use of cabinet space.
- High Surge Withstand Capability: Rated for 6 kV transient resistance in demanding power environments.
- Sirius System Compatibility: Fits seamlessly within Siemens’ modular motor control and protection architecture.
The 3RV1021-4BA10 delivers the reliability and precision required for safeguarding industrial motors against overloads, short circuits, and phase-failure conditions.