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Siemens SIRIUS 3RW55 Soft Starter - 370A, 200-690V

Siemens SIRIUS 3RW55 soft starter, 370A, 200-690V.

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ManufacturerSiemens

Part number3RW5546-6HA16

Manufacturer Siemens

Part Number 3RW5546-6HA16

Series SIRIUS 3RW55

Voltage 200-690 V AC

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CAGE: 9NK75

Smooth motor acceleration Reduced mechanical stress Extended equipment life Wide voltage range High current rating Screw terminal connections

Product description

The Siemens SIRIUS 3RW55 soft starter (3RW5546-6HA16) is engineered for smooth and controlled starting of three-phase motors. It operates across a wide voltage range of 200 to 690V AC and is rated for a substantial 370A, making it suitable for high-power applications. The starter utilizes screw terminals for secure and reliable electrical connections.

This soft starter is designed to reduce mechanical stress on machinery and electrical load during motor startup, thereby extending equipment life and improving operational efficiency. It's ideal for use in pumps, fans, compressors, and conveyor systems where soft, controlled acceleration is required.

Stanlo Automation, your trusted veteran-owned surplus parts distributor, offers the Siemens 3RW5546-6HA16. We provide access to high-quality, reliable industrial components to keep your operations running smoothly.

Technical specifications

Manufacturer	Siemens
Part Number	3RW5546-6HA16
Series	SIRIUS 3RW55
Voltage	200-690 V AC
Current Rating	370 A
Control Voltage	110-250 V AC
Terminals	Screw terminals
Type	Soft Starter

Common applications

Pump control

Fan control

Compressor starting

Conveyor systems

Industrial machinery

Motor protection

Compatible systems

3-phase AC induction motors Industrial control panels Motor control centers

Also known as

Siemens SIRIUS Soft Starter 3RW5546 Soft Starter Siemens 370A Soft Starter

Replaces / compatible with

The Siemens SIRIUS 3RW55 series soft starters are advanced motor control devices. They are designed to provide smooth starting for induction motors, replacing traditional direct-on-line or star-delta starters in many applications.

Technical note

Expert tip

Properly sized heatsinks and adequate ventilation are crucial for the reliable operation of the 3RW5546-6HA16, especially in high ambient temperature environments.

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Frequently asked questions

What is the control voltage for the Siemens 3RW5546-6HA16 soft starter?

The Siemens SIRIUS 3RW5546-6HA16 soft starter has a control voltage range of 110-250 V AC. This allows for flexible integration into various power systems.