3RE47 Enclosed Soft Starters

Why 3RE47 enclosed soft starters?

Siemens 3RE47 enclosed soft starters, powered by SIRIUS, offer a smart solution for motor-starting applications. The starters limit starting current and torque, precisely adjusting the motor to your driven machine’s load through stepless voltage control.

Motors are critical to your processes, requiring optimal, dependable performance. Prevent failures and reduce wear by accelerating mechanical equipment softly. This improves your process performance and minimizes brownouts, current spikes and other electrical grid disturbances.

The 3RE47 family offers three performance levels—basic, general and high—for diverse motor requirements. Its pre-engineered package simplifies commissioning and integration. An internal bypass contactor provides efficient switching, delivering long-term energy savings and extending equipment life.

Gray industrial electrical enclosure with control panel and cable connections

Key benefits

Optimize process performance

Accelerate mechanical equipment softly to reduce wear and tear on machinery and extend your equipment’s operational life for sustained productivity and reduced maintenance needs.

Enhance electrical grid stability

Minimize brownouts, current spikes and other disturbances to your electrical grid. This protects sensitive equipment from damage and ensures a more stable power supply, contributing to reliable and uninterrupted operations.

Simplify installation and integration

Install a pre-engineered package for simplified commissioning. Integrate flexibly into diverse environments and withstand harsh conditions for quick deployment and dependable operation in industrial settings.

Featured capabilities

Hybrid switching technology

Modern hybrid switching technology with an integral bypass contactor helps achieve efficient, energy-saving operation for reduced power loss and extended equipment life. Gain reliable performance across diverse applications.

Communication module integration

Connect seamlessly with plug-in communication modules for PROFINET, PROFIBUS, EtherNet/IP and Modbus with the high-performance package. Flexible system integration enables robust data exchange and control in your industrial network.

Advanced motor protection

Benefit from comprehensive motor overload and optional thermistor protection. Apply innovative torque control and automatic parameterization for simple commissioning and reliable performance under changing loads.