Siemens SENTRON 3VA Molded Case Circuit Breakers

A Vital Foundation for Intelligent, Future-Ready Systems

Siemens SENTRON 3VA molded case circuit breakers (MCCBs) provide a vital foundation for intelligent, future-ready low-voltage power distribution systems worldwide.

Why 3VA molded case circuit breakers?

Ensure reliable protection for power distribution systems, motors and machines, minimize downtime, and provide operational transparency with the 3VA molded case circuit breakers.

Approved to UL 489 and IEC 60947, and certified with Siemens EcoTech label, the system supports global applications, including system, motor, and generator protection. With modular design, highly variable configurations, and over 500 accessories for measurement, communication, and automation, they:

• provide efficient and reliable protection in any application

• ensure high system availability through selective protection

• integrate seamlessly into system and software landscapes

• support sustainable transformation of industry and infrastructure

Key Benefits

Ensure reliable and selective protection

Protect power distribution systems, motors, and machinery with perfectly coordinated protection mechanisms. Full selectivity ensures only the affected section is isolated while the rest of the plant remains safe and operational.

Enable transparency and digital integration

Measurement functions provide real-time condition data via communication modules. Wireless and seamless integration into higher-level systems ensures comprehensive transparency and supports end-to-end energy management.

Simplify engineering

Simplify, accelerate, and standardize projects through reduced number of variants, more efficient planning, Bluetooth® connectivity to SENTRON Powerconfig, and standardized protection design across applications.

Featured Capabilities

Master every application

Protect power distribution systems, motors, and machines with a modular, flexible system with over 500 accessories to meet all requirements and support every phase from planning to operation of electrical installations worldwide.

Optimize engineering and operation

Integrate 3VA MCCBs into the software environment and use SENTRON Software, TIA Portal, and cloud-based tools to design, parameterize, control, and control power distribution systems more time and cost efficiently.

Discover the plus in possibilities

Explore new opportunities in electrical power distribution for both new installations and existing systems with the 3VA2 plus and 3VA6 plus MCCBs, featuring smart and innovative additional functions.

Where SENTRON 3VA2 plus SENTRON 3VA6 plus excel

Whether it's condition monitoring for more efficient maintenance and higher system availability, outstanding adaptability to changing protection requirements, or integrated advanced personnel protection, SENTRON 3VA2 plus and SENTRON 3VA6 plus molded case circuit breakers open up new possibilities.

Integrated DAS+ maintenance mode

Protect maintenance personnel from arc flash during live work in the cubicles with DAS+ (Dynamic Arc-flash Sentry+). This maintenance mode integrated into the SENTRON 3VA2 plus and SENTRON 3VA6 plus MCCBs is activated via the ETU display or digital inputs and ensures particularly sensitive tripping in the event of a fault, automatically reducing protection parameters to a minimum.

Integrated condition monitoring

Ensure that only devices requiring replacement are swapped out at exactly the right time. SENTRON 3VA2 plus and SENTRON 3VA6 plus MCCBs feature continuous intelligent condition monitoring with a patented algorithm that determines health indicators and remaining lifetime. Recorded values are accessible via display, mobile app, or software. Aggregating them in the energy monitoring solutions SENTRON Powermanager or SENTRON Powercenter 3000 enables predictive maintenance, higher availability, and sustainability.

Enhanced transparency down to the final circuit

Implement end-to-end energy management in the power distribution system - enabling monitoring of energy data from infeed to field devices within a single system. SENTRON 3VA2 plus and SENTRON 3VA6 plus MCCBs transmit energy and condition data wirelessly to the data transceiver SENTRON Powercenter 1100/2000 and onward to higher-level systems. They integrate effortlessly into existing systems, providing comprehensive transparency, helping to pinpoint inefficiencies, and supporting data-driven decision-making.

Power-Flo Technologies is proud to partner with Siemens and their SENTRON 3VA molded case circuit breakers that deliver far more than dependable circuit protection—they provide the intelligence, flexibility, and connectivity needed for modern power distribution systems. With advanced features such as integrated condition monitoring, enhanced transparency, maintenance mode protection, and seamless software integration, the 3VA portfolio helps organizations improve safety, increase system availability, and support predictive maintenance strategies. Their modular design and extensive range of accessories make them adaptable to virtually any application, from industrial facilities to critical infrastructure. As industries continue to embrace digitalization and sustainability, SENTRON 3VA MCCBs offer a future-ready solution that helps optimize performance, reduce downtime, and unlock new possibilities in electrical power distribution.