Description
The Siemens SIRIUS 3RV2021-4DA10 is a compact motor protection circuit breaker designed to provide reliable overload and short-circuit protection for three-phase induction motors. As part of the SIRIUS 3RV2 series, this device features an adjustable current setting range of 18-25A with trip class 10 protection. With a rated operational voltage of up to 690V AC and short-circuit breaking capacity of 36kA at 415V, it offers robust protection for motors up to 11kW at 400V AC-3. The thermal-magnetic trip mechanism ensures quick response to overload and short-circuit conditions, while the phase failure protection prevents motor damage during unbalanced supply conditions. Compact DIN-rail mounting design makes it ideal for space-constrained industrial applications.
Key Features
- Motor Protection Circuit Breaker for 3-phase induction motors
- Adjustable current range: 18-25A
- Trip class: CLASS 10
- Short-circuit breaking capacity: 36kA at 415V
- Rated operational voltage: up to 690V AC
- Motor power: up to 11kW at 400V AC-3
- Phase failure protection
- Thermal-magnetic trip mechanism
- Compact S00 size design
- DIN-rail mounting
- Screw terminal connections
- IP20 protection degree
- Country of origin: Germany
Technical Specifications
- Rated Current: 18-25A (adjustable)
- Trip Class: CLASS 10
- Short-Circuit Breaking Capacity:
- 36kA at 415V AC
- 10kA at 500V AC
- 4kA at 690V AC
- Motor Power: 11kW at 400V AC-3
- Rated Operational Voltage: 690V AC
- Number of Poles: 3P
- Mounting: DIN-rail EN 60715 35mm
- Terminal Type: Screw terminals
- Conductor Cross-section:
- Solid/stranded: 0.75-25mm²
- Fine-stranded with end sleeve: 0.75-25mm²
- Operating Temperature: -20°C to +60°C
- Storage Temperature: -50°C to +80°C
- Dimensions: 97mm × 45mm × 96mm (W × H × D)
- Weight: approx. 0.35kg
- Protection Degree: IP20
- Standards: IEC/EN 60947-1, -2, -4-1
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Technical support for selection and installation
- Compatibility verification with existing systems
- Application engineering support
- Commissioning assistance available
Delivery Time
- Standard delivery: 3-5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens SIRIUS motor protection components
- Global supply network with competitive pricing
- Expertise in motor control and protection systems
- Comprehensive technical documentation
- Responsive customer service and support
Applications
- Three-phase motor protection
- Pump and fan motor control
- Compressor motor protection
- Conveyor system protection
- Material handling equipment
- HVAC system motors
- Machine tool motor protection
- Process control motors
- Industrial fan and blower systems
- Small machine motor starters
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