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Siemens 3RW4056-2BB34 SIRIUS S6 Soft Starter - 145A, 100HP

Siemens SIRIUS S6 Soft Starter - 145A, 100HP, 200-460V AC (Phased-out).

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ManufacturerSiemens

Part number3RW4056-2BB34

Size S6

Current 145 A

Power 100 hp/460 V

Voltage 200-460 V AC

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12-month warranty

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Veteran-owned

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SIRIUS soft starter Size S6 145A rated current 100hp power rating 200-460V AC operating voltage 115V AC control voltage

Product description

The Siemens 3RW4056-2BB34 is a SIRIUS soft starter, size S6, rated for 145 A and 100 hp at 460 V. It operates with a 200-460V AC supply voltage and a 115V AC control voltage, featuring spring-type terminals. Please note this is a phased-out product, with the preferred successor being the SIRIUS 3RW5056-2AB14.

This soft starter was designed for smooth motor acceleration, reducing mechanical stress and electrical inrush currents in applications like pumps, fans, and compressors. It provided essential motor protection features for industrial use.

Stanlo Automation, a veteran-owned surplus parts distributor, offers this Siemens soft starter. While it's a phased-out model, we can help you find available stock or suitable alternatives to keep your systems operational. Contact us for your automation component needs.

Technical specifications

Size	S6
Current	145 A
Power	100 hp/460 V
Voltage	200-460 V AC
Control Voltage	115 V AC
Terminals	Spring-type

Common applications

Motor control

Pump systems

Fan control

Compressor starting

Industrial machinery

Also known as

Siemens SIRIUS 3RW40 soft starter

Replaces / compatible with

Successor is SIRIUS 3RW5, Preferred successor type is >>3RW5056-2AB14<<

Technical note

Expert tip

This unit uses spring-type terminals for quick and secure connections, suitable for environments with vibration.

What happens next?

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Frequently asked questions

What is the successor to the Siemens 3RW4056-2BB34 soft starter?

The Siemens 3RW4056-2BB34 is a phased-out product. The preferred successor is the SIRIUS 3RW5056-2AB14, offering updated technology and features for motor control.