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Siemens SIRIUS 3RW4055-2BB34 Soft Starter - 117A, 75HP

Siemens SIRIUS 3RW4055-2BB34 soft starter, 117A.

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ManufacturerSiemens

Part number3RW4055-2BB34

Rated operational current 117 A

Motor power 75 hp @ 460 V

Control voltage 200-460 V AC

Terminals Spring-type

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Soft start functionality 117A current rating 75HP motor capacity 200-460V AC control Spring-type terminals

Product description

The Siemens SIRIUS 3RW4055-2BB34 is a soft starter designed for smooth acceleration of three-phase induction motors. It has a rated operating current of 117 A and can handle motor ratings up to 75 hp at 460 V. The control voltage range is 200-460 V AC, with spring-type terminals for easy connection. Please note this is a phased-out product, with the preferred successor being the 3RW5055-2AB14.

This soft starter is ideal for applications requiring reduced mechanical stress on machinery during startup, such as conveyor systems, pumps, and fans. It helps to minimize starting current, reducing electrical load and improving system efficiency. Industries benefiting from this include general manufacturing, material handling, and HVAC.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens SIRIUS 3RW4055-2BB34. Find discontinued yet essential components to maintain your existing systems. Contact us for availability.

Technical specifications

Rated operational current	117 A
Motor power	75 hp @ 460 V
Control voltage	200-460 V AC
Terminals	Spring-type
Status	Phased-out (Successor: 3RW5055-2AB14)

Common applications

Conveyor Systems

Pump Control

Fan Control

General Manufacturing

Material Handling

HVAC

Compatible systems

Three-phase induction motors

Also known as

SIRIUS soft starter 3RW40

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens SIRIUS 3RW5055-2AB14.

Technical note

Expert tip

While this product is phased out, ensure proper wiring and bypass contactor integration for optimal motor protection and longevity.

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Frequently asked questions

What is the recommended successor for the Siemens 3RW4055-2BB34 soft starter?

The Siemens SIRIUS 3RW4055-2BB34 is a phased-out product. The preferred successor is the Siemens SIRIUS 3RW5055-2AB14.