3RW5072-6TB14

The 3RW5072-6TB14 is a high-current soft starter from the Siemens SIRIUS 3RW50 series, with a rated current of 210A. It is suitable for 200-480V three-phase power supplies, features built-in thermistor input protection, uses screw terminal connections, and can be equipped with a communication module. It is ideal for smooth start-stop of large motors.

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The 3RW5072-6TB14 is a compact soft starter in the Siemens SIRIUS 3RW50 series with a high current rating of 210A. It is suitable for smooth start and stop control of three-phase motors from 200 to 480V.

Core Product Advantages and Features
Thermistor input
It has a built-in thermistor input terminal, which can detect the motor temperature rise in real time and provide overheat protection.
Screw terminal design
The main circuit uses bus connections, and the control circuit uses screw terminals for easy wiring and maintenance.
Expandable communication module
It supports optional communication modules such as PROFINET, PROFIBUS, and Modbus, making it easy to integrate with automation systems.
Built-in bypass function
After operation, it can automatically switch to bypass operation to reduce component heating and improve system efficiency.
project Specification
series SIRIUS 3RW50
Rated current 210 A (40°C)
Applicable power supply voltage 3-phase 200-480V AC
Rated power 132 kW (400V)
Control power supply voltage 110-250V AC, 50/60Hz
Input type Thermistor input
Terminal type Main circuit bus connection, control circuit screw terminals
Protection level IP00
Casing size 230 x 160 x 282 mm
net weight Approximately 8 kg
Communication Interface Optional PROFINET/PROFIBUS/Modbus/EtherNet-IP modules
Built-in functions Soft start, soft stop, built-in bypass
Safety certification CE, UL, CSA, CCC
Application scenarios Smooth start and stop of large three-phase asynchronous motors