This product page details the Siemens 3RV2 motor protection circuit breaker, a specialized device designed to provide comprehensive protection for small motors in industrial applications. Specifically calibrated for 0.18kW motors with an adjustable current range of 0.45-0.63A and a wide voltage rating of 220-690VAC, this DIN-rail mounted MPCB offers reliable overload and short-circuit protection for three-phase motor circuits.
Overview of the Motor Protection Circuit Breaker
The Siemens 3RV2 motor protection circuit breaker serves as a crucial component in motor control systems. Because it integrates both overload protection and short-circuit protection in a single compact device, it eliminates the need for separate thermal overload relays and fuses, simplifying panel design and enhancing motor safety.
Key Features and Technical Specifications
This MPCB is engineered specifically for motor protection applications. Therefore, here are its essential characteristics:
- Motor Power: Rated for 0.18kW (approximately 1/4 HP) motors
- Current Range: Adjustable 0.45-0.63A for precise motor matching
- Voltage Rating: 220-690VAC for versatile three-phase applications
- Mounting: Standard 35mm DIN rail mounting
- Protection Functions: Overload and short-circuit protection
- Tripping Class: Typically Class 10 for fast motor protection
- Standards: Compliant with IEC/EN 60947-2 and IEC/EN 60947-4-1
- Auxiliary Contacts: Optional auxiliary contacts available
Typical Applications and Use Cases
The specialized protection of this motor protection circuit breaker makes it ideal for various small motor applications. For example, it is commonly used for:
- Small pump and fan motor protection
- Conveyor system small drive motors
- HVAC system auxiliary motors
- Packaging machinery small motor circuits
- Industrial automation small actuator motors
- Machine tool auxiliary motor protection
- Processing equipment small motor circuits
For complete motor control solutions, explore our range of compatible contactors and motor starters designed to work with Siemens MPCBs.
Why Choose Siemens 3RV2 Motor Protection Circuit Breakers?
Selecting the Siemens 3RV2 motor protection circuit breaker provides significant advantages for motor circuit protection. Firstly, the precise adjustable current setting (0.45-0.63A) allows exact matching to motor full load current, providing optimal overload protection without nuisance tripping. Secondly, the integrated short-circuit protection eliminates the need for additional fuses, reducing component count and simplifying maintenance. Consequently, you achieve comprehensive motor protection in a compact, cost-effective solution that ensures motor longevity and system reliability.
Installation and Configuration Guidelines
Proper installation and setting of this motor protection circuit breaker is essential for optimal performance. Mount the device on a standard 35mm DIN rail and connect according to the motor power rating and control circuit requirements. Set the current adjustment dial to match the motor’s exact full load current, typically found on the motor nameplate. Furthermore, always verify the installation with functional testing to ensure proper operation of both overload and short-circuit protection features.
For detailed technical specifications and selection guidelines, consult the comprehensive Siemens 3RV2 motor protection circuit breaker documentation.
Protect Your Motor Investment Today
In summary, the Siemens 3RV2 motor protection circuit breaker represents a specialized and reliable solution for small motor protection requirements. Finally, by incorporating this precision protection device into your motor control systems, you ensure motor safety, reduce downtime, and extend equipment life for your small motor applications in industrial and commercial settings.
