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Siemens Motor starter 3-phase 710 kW, 480 V / 720 A

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Product details

SIRIUS Soft Starter 200-480 V 720 A, AC 110-250 V screw terminals. The SIRIUS 3RW55 High Performance soft starter is designed for demanding applications that require smooth starting and stopping of three-phase asynchronous motors. It allows for stepless starting, reduces current peaks, avoids voltage fluctuations during startup, relieves the power supply network, and decreases mechanical stress on the drive. It offers significant space and wiring savings compared to star-delta starters and frequency converters, features maintenance-free switching, and is extremely easy to handle. The integrated bypass enables a very compact design, saves energy, and reduces heating in the control cabinet. Intelligent monitoring functions protect the soft starter from overheating and the motor from overload. Additionally, you can limit the current during startup to a set maximum value. With three-phase control, it is particularly suitable for large motor outputs and root-3 circuits. The innovative torque control ensures optimal motor startup. Easy and quick commissioning is facilitated by auto-parameterization or an application assistant. Predictive maintenance planning is supported by condition monitoring. A detachable HMI with a color display provides clear measurement and diagnostic information. It has worldwide approvals (e.g., IEC and UL/CSA). The High Performance soft starters 3RW55 are available for networks up to 690 V in a power range up to 560 kW, with control supply voltages of 24 V or 110-250 V, and consistently feature screw and spring clamp connections. An analog output and thermistor motor protection are standard components of the High Performance soft starters. Optional plug-in communication modules allow for connections via PROFINET, PROFIBUS, and Modbus TCP. The built-in HMI module can also be mounted on the control cabinet door. The 3RW55 soft starters replace the proven 3RW44 series. SIRIUS 3RW5 soft starters - as flexible as your task.

Key specifications

Motor control type
Soft starter
Country of origin
Czech Republic

General information

Item number
18542947
Manufacturer
Siemens
Category
Motor controllers
Manufacturer No.
3RW5553-6HA14
Release date
2.2.2022

Motor control features

Motor control type
Soft starter
rated current
720 A
Rated voltage
480 V
Protection type (IP code)
IP00

Origin

Country of origin
Czech Republic

Sustainability

Manufacturer commitment
RE100SBTi

Scope of delivery

Scope of delivery
1

Product dimensions

Height
76.40 cm
Width
47.80 cm
Length
24.10 cm

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