3RW4447-6BC45

The 3RW4447-6BC45 is a SIRIUS 3RW44 series soft starter. It has a 500V standard wiring rated capacity of 432A and 315kW, a control voltage of 230V AC, and an operating voltage range of 400 to 600V. It adopts a row-type main circuit and is suitable for soft starting applications of medium-sized three-phase motors.

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3RW4447-6BC45 SIRIUS 3RW44 Soft Starter 432A 315kW

Product Positioning

The 3RW4447-6BC45 is a soft starter from the Siemens SIRIUS 3RW44 series. It has a rated current of 432A and a rated power of 315kW under 500V power supply and is suitable for soft start and stop control of medium-sized three-phase motors.

Core Product Advantages and Features

Suitable for medium loads

With a rated current of 432A and a power of 315kW, it is suitable for medium-sized pumps, fans and conveying equipment.

Wide voltage range

Rated operating voltage ranges from 400 to 600V AC, with a standard test point of 500V.

230V AC control voltage

It uses a common 230V AC control power supply, which is convenient for integration with existing control circuits.

project	Specification
Product Type	SIRIUS 3RW44 Soft Starter
Rated operating voltage	400...600V AC (Standard test point 500V)
Control the power supply voltage	230V AC
Rated current (standard wiring)	432 A
Rated power (standard wiring, 500V)	315 kW
Main circuit connection method	busbar connection
Auxiliary circuit terminal type	Screw terminals
Control method	Phase angle voltage ramp control
Protection function	Motor overload protection, adjustable current limiting, thyristor body protection
Applicable wiring methods	Supports standard wiring and inside-delta wiring
Protection level	IP00 (Requires installation on a control panel with IP54 or higher)
brand	Siemens SIRIUS

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3RW4447-6BC44

The Siemens SIRIUS 3RW4447-6BC44 standard circuit has a rated current of 432A and an internal delta connection of 748A. The power is 250kW at 400V and 400kW at internal delta connection. The control voltage is 230V AC. It has built-in bypass contacts and overload protection and is suitable for reduced-voltage starting of heavy-duty motors such as large pumps and fans.

3RW4446-6BC44

The Siemens SIRIUS 3RW4446-6BC44 standard circuit has a rated current of 356A and an internal delta connection of 617A. The power is 200kW under 400V and 355kW under internal delta connection. The operating voltage is 200-460V AC, and the control voltage is 230V AC. It is suitable for reduced voltage starting of heavy-duty equipment such as large conveyors and crushers.