SIRIUS soft starter 200-480 V 250 A-3RW5244-6AC14

Product Description

SIRIUS Soft Starter 200–480 V 250 A – 3RW5244-6AC14

The Siemens 3RW5244-6AC14 is a high-performance SIRIUS 3RW52 series soft starter, designed for smooth and controlled starting and stopping of three-phase induction motors. It helps reduce starting current peaks, mechanical stress, and voltage dips, ensuring improved motor protection and stable operation of electrical networks in industrial applications.

This model operates in a 200–480 V AC voltage range with a rated operational current of 250 A, making it suitable for heavy-duty motor applications such as large pumps, compressors, conveyors, crushers, mixers, and HVAC systems.

It uses three-phase controlled thyristor technology with an integrated bypass contact system, which improves efficiency after startup by reducing heat losses and energy consumption. The device also provides adjustable ramp settings, current limiting, motor overload protection, thermistor input, and diagnostic functions, making it ideal for modern automation and process industries.

🔹 Key Features

• Siemens SIRIUS 3RW52 series soft starter
• Part Number: 3RW5244-6AC14
• Rated operational current: 250 A
• Supply voltage: 200–480 V AC
• Three-phase controlled motor starting
• Integrated bypass contact system for energy efficiency
• Adjustable soft start and soft stop ramps
• Current limiting for controlled motor acceleration
• Built-in motor overload and thermal protection
• Thermistor input for motor temperature monitoring
• Advanced diagnostic and fault indication features
• Compact panel-mount design
• High reliability for industrial environments
• Complies with IEC 60947-4-2 standards