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Siemens SIRIUS 3RW5546-2HA14 Soft Starter

Siemens SIRIUS 3RW5546-2HA14 soft starter for motors.

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ManufacturerSiemens

Part number3RW5546-2HA14

Voltage 200-480 V AC

Motor Current 370 A

Control Voltage 110-250 V AC

Terminals Spring-type

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Soft start for motors 370A motor current rating 200-480V operating voltage Spring-type terminals SIRIUS motor starter

Product description

The Siemens 3RW5546-2HA14 is a high-performance SIRIUS soft starter designed for smooth and controlled starting of three-phase asynchronous motors. It operates within a voltage range of 200-480 V and can handle a rated motor current of up to 370 A. The control voltage is 110-250 V AC, and it features convenient spring-type terminals for quick and secure connections.

This soft starter is suitable for a wide array of industrial applications where soft starting is critical to reduce mechanical stress and electrical inrush current. Common uses include pumps, fans, compressors, conveyor systems, and other machinery requiring gentle acceleration. Its robust design ensures reliable operation in demanding environments.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens 3RW5546-2HA14 soft starter, ensuring you have access to reliable and high-quality components for your motor control needs.

Technical specifications

Voltage	200-480 V AC
Motor Current	370 A
Control Voltage	110-250 V AC
Terminals	Spring-type
Series	SIRIUS 3RW55

Common applications

Pump control

Fan control

Compressor starting

Conveyor systems

Industrial machinery

Compatible systems

Three-phase asynchronous motors Siemens motor control systems

Also known as

Siemens SIRIUS Soft Starter 3RW5546-2HA14 370A Soft Starter Siemens Siemens Motor Soft Starter

Replaces / compatible with

Replaces direct-on-line starters in applications requiring reduced mechanical and electrical stress during motor startup.

Technical note

Expert tip

Ensure correct wiring to the spring-type terminals for reliable electrical contact and to prevent vibration-induced loosening.

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Frequently asked questions

What is the rated motor current for the Siemens 3RW5546-2HA14 soft starter?

The Siemens 3RW5546-2HA14 SIRIUS soft starter has a rated motor current of 370 A. It is designed to operate with motors requiring this current capacity and provides smooth, controlled starting.