Siemens 3RW4456-2BC34 SIRIUS Soft Starter — 693A @ 460V

Siemens 3RW4456-2BC34 SIRIUS Soft Starter (Phased-Out)

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ManufacturerSiemens

Part number3RW4456-2BC34

Current (Standard @ 460V, 50C) 693 A

Power (Standard @ 460V, 50C) 600 hp

Current (Inside-delta @ 460V) 1200 A

Power (Inside-delta @ 460V) 1050 hp

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Veteran-owned

CAGE: 9NK75

Smooth Motor Start Reduced Mechanical Stress Controlled Deceleration High Current Ratings Phased-Out Product

Product description

The Siemens 3RW4456-2BC34 is a SIRIUS soft starter designed for smooth motor acceleration and deceleration. At 460V and 50°C, it handles a standard current of 693 A and 600 hp. For inside-delta connections, it supports 1200 A and 1050 hp, operating on 200-460 V AC with a 115 V AC control voltage.

This product is officially phased out by the manufacturer. The preferred successor is the SIRIUS 3RW5 series, specifically the 3RW5554-2HA14 model. However, this unit still provides essential soft-starting capabilities for applications requiring controlled motor startups and stops.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RW4456-2BC34 as available surplus. We understand the need to maintain existing equipment, and our inventory provides solutions for legacy systems. Contact us for this phased-out but functional soft starter.

Technical specifications

Current (Standard @ 460V, 50C)	693 A
Power (Standard @ 460V, 50C)	600 hp
Current (Inside-delta @ 460V)	1200 A
Power (Inside-delta @ 460V)	1050 hp
Voltage	200-460 V AC
Control Voltage	115 V AC
Terminals	Spring-type

Common applications

Motor Control

Pump Applications

Fan Systems

Conveyor Belts

Industrial Machinery

Heavy Load Starting

Compatible systems

AC Induction Motors

Also known as

Siemens SIRIUS Soft Starter Siemens 3RW44 Soft Starter 3RW4456 Soft Starter

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens SIRIUS 3RW5 series, specifically the 3RW5554-2HA14.

Technical note

Expert tip

As this is a phased-out product, ensure that spare parts and technical support are still available for your specific application before implementation.

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Frequently asked questions

What are the current and power ratings for the Siemens 3RW4456-2BC34 soft starter?

The Siemens 3RW4456-2BC34 has a standard rating of 693 A and 600 hp at 460V/50°C. When connected inside-delta, it handles 1200 A and 1050 hp.