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Siemens SIRIUS Soft Starter S6 117A 75hp

Siemens SIRIUS S6 soft starter, 117A, 75hp rated, phased-out.

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ManufacturerSiemens

Part number3RW4055-6BB34

Series SIRIUS S6

Rated Current 117 A

Max Motor Power 75 hp @ 460 V

Voltage 200-460 V AC

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SIRIUS S6 Soft Starter 117A Rating 75hp Motor Capacity 200-460V AC Operation Screw Terminals Smooth Motor Starting

Product description

The Siemens SIRIUS soft starter, model 3RW4055-6BB34, is designed for smooth starting of three-phase induction motors. This S6 series soft starter has a rated current of 117 A and is suitable for motors up to 75 hp at 460 V. It operates with a voltage range of 200-460 V AC and features screw terminals for connection. The unit is rated for operation at 50 °C.

This product is officially phased out by the manufacturer. The preferred successor is the SIRIUS 3RW5 series, with a specific recommended type being 3RW5055-6AB14. While this model is no longer actively produced, it remains a viable option for replacement or specific applications where its specifications are precisely met.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RW4055-6BB34. Secure this soft starter for your applications or consider its successor through our network.

Technical specifications

Series	SIRIUS S6
Rated Current	117 A
Max Motor Power	75 hp @ 460 V
Voltage	200-460 V AC
Terminals	Screw
Temperature Rating	50 °C
Status	Phased-out

Common applications

Motor Control

Pump Applications

Fan Applications

Compressor Control

Conveyor Systems

Industrial Machinery

Compatible systems

Compatible with three-phase induction motors within the specified voltage and power ratings.

Also known as

Siemens Soft Starter 3RW40 SIRIUS Motor Controller 117 Amp Soft Starter

Replaces / compatible with

This is a phased-out product. The preferred successor is the SIRIUS 3RW5 series, specifically type 3RW5055-6AB14.

Technical note

Expert tip

As a phased-out product, ensure availability of spare parts or consider upgrading to the recommended successor, 3RW5055-6AB14, for long-term support.

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Frequently asked questions

What is the successor to the Siemens SIRIUS soft starter 3RW4055-6BB34?

The Siemens SIRIUS soft starter 3RW4055-6BB34 is a phased-out product. The preferred successor is the SIRIUS 3RW5 series, with the specific recommended type being 3RW5055-6AB14.