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Siemens SIRIUS 3RW4447-6BC34

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3RW4447-6BC34

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Siemens’ 3RW4447-6BC34 is a robust soft starter from the SIRIUS series, designed for controlling the start of 3-phase motors. It can handle an operating temperature of up to 50°C, supports a voltage range of 200 to 460 V AC, and achieves a current rating of 385 A at 460 V.

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Technical specifications for 3RW4447-6BC34

ManufacturerSiemens
Product TypeSoft Starter
Product LineSIRIUS
Part Number3RW4447-6BC34
UPC754554923147
Weight25.00 lbs (11.34 kg)
Standard Current Rating385 A (at 460 V, 50°C)
Inside-Delta Current667 A
Terminal TypeScrew Terminals
Circuit TypeInside-Delta or Standard
Standard Power Rating300 HP (at 460 V)
Rated Frequency50/60 Hz
Inside-Delta Power Rating600 HP (at 460 V)
Mounting TypePanel Mount
Rated Voltage (Main)200–460 V AC
Operating TemperatureUp to 50°C
Control Voltage115 V AC
ApplicationMotor Soft Start
Phase3-Phase
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The Siemens 3RW4447-6BC34 is a soft starter within the SIRIUS product line, tailored for efficient motor control in industrial applications. Rated for a maximum current of 385 A at an ambient temperature of 50°C, it ensures reliable performance during motor start-up. The soft starter is compatible with a three-phase supply and accommodates voltage levels ranging from 200 to 460 V AC. This capability enables integration into various electrical systems.

In terms of performance, the device achieves a standard power rating of 300 HP when operating at 460 V. When configured for inside-delta applications, the 3RW4447-6BC34 can manage up to 600 HP, enabling it to handle higher power demands efficiently. Rated for frequencies of 50/60 Hz, this component is versatile for different operational settings.

The control voltage required for operation is 115 V AC, and the soft starter features screw terminals, facilitating secure connections. This device weighs 5.14 kg and is designed for straightforward panel mounting, ensuring ease of installation in various setups. With its ability to provide a smooth motor start, the 3RW4447-6BC34 enhances overall machinery performance while reducing wear on motor systems.