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Siemens SIRIUS 3RW4455-6BC34 Soft Starter - Phased Out

Siemens SIRIUS 3RW4455-6BC34 Soft Starter (Phased Out).

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ManufacturerSiemens

Part number3RW4455-6BC34

Part Number 3RW4455-6BC34

Manufacturer Siemens

Series SIRIUS

Type Soft Starter

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Controlled motor start-up Reduces mechanical stress Reduces electrical stress Suitable for various motor loads Screw terminal connections

Product description

The Siemens SIRIUS 3RW4455-6BC34 is a soft starter designed for controlled motor acceleration. It provides standard starting values of 615 A at 460 V (50 °C) and inside-delta values of 1065 A at 460 V (50 °C). The unit operates on a 200-460 V AC supply voltage and features screw terminals for connection. Please note that this is a phased-out product, with the preferred successor being the SIRIUS 3RW5553-6HA14.

Soft starters are crucial for reducing mechanical stress on machinery and electrical stress on the power supply during motor startup. This Siemens soft starter is suitable for a wide range of industrial applications, including pumps, fans, conveyors, and compressors, where smooth and controlled starts are necessary to prolong equipment life and improve system efficiency.

Stanlo Automation, a veteran-owned distributor specializing in surplus industrial parts, offers the Siemens SIRIUS 3RW4455-6BC34. While this product is phased out, we can help you source available stock or guide you towards suitable replacements. Partner with Stanlo for your industrial automation needs and benefit from our expertise and commitment to service.

Technical specifications

Part Number	3RW4455-6BC34
Manufacturer	Siemens
Series	SIRIUS
Type	Soft Starter
Voltage	200-460 V AC
Current (Standard @ 460V, 50°C)	615 A
Current (Inside-Delta @ 460V, 50°C)	1065 A
Terminals	Screw
Status	Phased-out

Common applications

Pump control

Fan control

Conveyor systems

Compressors

Industrial machinery

Motor soft starting

Compatible systems

Various AC motors Industrial motor control panels

Also known as

Siemens SIRIUS Soft Starter 3RW4455-6BC34 Motor Starter SIRIUS Soft Starter 3RW4455

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens SIRIUS 3RW5553-6HA14 soft starter.

Technical note

Expert tip

When replacing this phased-out unit, ensure the new SIRIUS 3RW5553-6HA14 is correctly sized for the motor's full load current and application requirements.

What happens next?

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Frequently asked questions

What is the successor to the Siemens SIRIUS 3RW4455-6BC34 soft starter?

The Siemens SIRIUS 3RW4455-6BC34 is a phased-out product. The preferred successor is the Siemens SIRIUS 3RW5553-6HA14 soft starter, offering updated features and performance.