SENTRON 3VA breakers deliver reliable overload, short-circuit, and selective protection functions for low-voltage power distribution circuits. Various trip units (thermal-magnetic or electronic) support long-time, short-time, instantaneous, and ground fault protection. The high breaking capacity classes and comprehensive accessory platform make them suitable for line, motor, generator, and starter protection in industrial, infrastructure, and commercial installations.

The SENTRON 3VA series is a modular, highly versatile platform with over 500 accessory components, including auxiliary switches, shunt trips, undervoltage releases, communication modules, mounting bases, test devices, and external operators. Many accessories are common across frame sizes, simplifying planning, reducing inventory complexity, and speeding up installation and commissioning.

SENTRON 3VA MCCBs can connect to automation and energy management systems using modular pluggable interfaces for common protocols such as Modbus TCP/RTU, PROFINET, and PROFIBUS. With optional communications modules and breaker data servers, breakers can share status, measured values, alarms, and diagnostics to higher-level systems, enabling condition monitoring and maintenance planning.

SENTRON 3VA ETUs include built-in measurement functions for current, voltage, and power. These functions, combined with communication modules and software, enable transparent status monitoring, diagnostics, and energy management integration.

With the SENTRON Powerconfig mobile app, you can, for example, capture and monitor device statuses and measurements remotely via a Bluetooth connection.

Software SENTRON Powerconfig supports the efficient parameterization, documentation, operation, and monitoring of the devices with a single software solution and without programming skills, saving time especially in large installations.

The key functions of SENTRON Powerconfig are also available in TIA Portal, providing direct integration into the industrial automation environment and into wider energy management systems via standard industrial networks, improving operational transparency and supporting meeting your energy efficiency goals.

The cloud-based Electrical Designer in the TIA Selection Tool Cloud allows you to design electrical equipment for machines particularly quickly, easily, and reliably while reducing costs.