3RW4456-6BC35

The 3RW4456-6BC35 is a soft starter in the SIRIUS 3RW44 series. It operates at voltages ranging from 400 to 600V AC, has a rated current of approximately 693A, and a control voltage of 115V AC. It features screw-type terminals and a main circuit with a strip, making it suitable for soft start/stop control applications of large motors.

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3RW4456-6BC35 SIRIUS 3RW44 Soft Starter 693A 575V Model

Product Positioning

The 3RW4456-6BC35 is a soft starter from the Siemens SIRIUS 3RW44 series. It is a high-voltage model suitable for soft start and stop control of large three-phase motors in 400 to 600V power supply systems.

Core Product Advantages and Features

Wide voltage range

Rated operating voltage ranges from 400 to 600V AC, suitable for various medium and high voltage power supply environments.

Stable current output

With a rated current of approximately 693A, it can meet the starting load requirements of large electric motors.

Improve protection mechanisms

Built-in motor overload and thyristor protection reduces the risk of overcurrent damage.

project	Specification
Product Type	SIRIUS 3RW44 Soft Starter
Rated operating voltage	400...600V AC (Standard test point 575V)
Control the power supply voltage	115V AC
Rated current (standard wiring)	Approximately 693 A
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)
Applicable motors	Three-phase asynchronous motor
brand	Siemens SIRIUS

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