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Siemens 3RW4073-2BB45 SIRIUS Soft Starter - 230A, 160kW

Siemens 3RW4073-2BB45 SIRIUS Soft Starter (S12, 230A)

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ManufacturerSiemens

Part number3RW4073-2BB45

Type Soft Starter

Series SIRIUS

Size S12

Rated Current 230 A

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Veteran-owned

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Soft motor acceleration Reduces inrush current Protects motor and mechanics S12 size, 230A rating 400-600V AC supply Spring-type terminals

Product description

The Siemens 3RW4073-2BB45 is a SIRIUS soft starter, size S12, with a rated current of 230 A and a motor power rating of 160 kW at 500 V. It operates with a supply voltage of 400-600 V AC and a control voltage of 230 V AC, featuring spring-type terminals.

This soft starter is designed to provide smooth acceleration for three-phase induction motors, reducing mechanical stress and electrical inrush current. It's ideal for applications like conveyor systems, pumps, and fans where soft starting is beneficial.

Note: This is a phased-out product. The preferred successor is the Siemens SIRIUS 3RW5073-2AB15. Stanlo Automation, a veteran-owned surplus distributor, offers this component. Secure your parts from a trusted source.

Technical specifications

Type	Soft Starter
Series	SIRIUS
Size	S12
Rated Current	230 A
Motor Power	160 kW (500 V)
Supply Voltage	400-600 V AC
Control Voltage	230 V AC
Terminals	Spring-type

Common applications

Conveyor systems

Pump control

Fan control

Industrial machinery

Motor starting

Load management

Compatible systems

Three-phase induction motors

Also known as

Siemens SIRIUS Soft Starter 3RW4073-2BB45 S12 soft starter 230A motor starter

Replaces / compatible with

Phased-out product. Preferred successor is SIRIUS 3RW5073-2AB15.

Technical note

Expert tip

Although this is a phased-out product, it remains a reliable solution for applications requiring its specific performance characteristics. Always check successor compatibility.

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Frequently asked questions

What is the Siemens 3RW4073-2BB45 soft starter used for?

The Siemens 3RW4073-2BB45 is a SIRIUS soft starter (size S12, 230A) used for smooth acceleration of three-phase induction motors up to 160 kW at 500V. It helps reduce mechanical stress and electrical inrush current.