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Siemens SIRIUS 3RW44 Soft Starter - 693A, 600HP

Siemens SIRIUS 3RW44 Soft Starter, 693A, 600HP, phased-out.

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ManufacturerSiemens

Part number3RW4456-6BC34

Rated Current (Standard) 693 A (at 460V)

Rated Power (Standard) 600 hp (at 460V)

Rated Current (Inside-Delta) 1200 A (at 460V)

Rated Power (Inside-Delta) 1050 hp (at 460V)

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Veteran-owned

CAGE: 9NK75

Soft Starting Capability Reduced Inrush Current Mechanical Stress Reduction Screw Terminals High Power Ratings Phased-out (Successor: 3RW5554-6HA14)

Product description

The Siemens SIRIUS 3RW4456-6BC34 is a soft starter designed for smooth motor acceleration and deceleration, reducing mechanical stress and electrical inrush current. This phased-out product offered impressive values at 460V, with a standard operating current of 693A (600 hp) and an inside-delta current of 1200A (1050 hp). It operates on a 200-460V AC supply and features screw terminals for connection.

This particular model is noted as phased out, with the SIRIUS 3RW5 series being its successor. The preferred successor type is >>3RW5554-6HA14<<. It is important to note this when considering replacements or upgrades.

Stanlo Automation, a veteran-owned surplus parts distributor, may have this Siemens SIRIUS 3RW4456-6BC34 available as surplus stock. We aim to provide essential industrial automation components. Contact Stanlo Automation for availability of this phased-out but capable soft starter, or inquire about suitable modern replacements.

Technical specifications

Rated Current (Standard)	693 A (at 460V)
Rated Power (Standard)	600 hp (at 460V)
Rated Current (Inside-Delta)	1200 A (at 460V)
Rated Power (Inside-Delta)	1050 hp (at 460V)
Input Voltage	200-460 V AC
Control Voltage	115 V AC
Terminals	Screw

Common applications

Motor Control

Pump Starting

Fan Starting

Compressor Starting

Conveyor Systems

Heavy Machinery

Industrial Automation

Compatible systems

200-460 V AC motor control systems 115 V AC control circuits

Also known as

SIRIUS 3RW44 Soft Starter Siemens Soft Starter 3RW4456-6BC34 3RW44 Soft Starter

Replaces / compatible with

This product has been phased out. The preferred successor is the Siemens SIRIUS 3RW5554-6HA14. Always consult the manufacturer's documentation for precise replacement guidance.

Technical note

Expert tip

As this is a phased-out product, availability may be limited to surplus stock. Verify that the 115V AC control voltage is compatible with your control system.

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Frequently asked questions

What are the successor models for the phased-out Siemens SIRIUS 3RW4456-6BC34 soft starter?

The Siemens SIRIUS 3RW4456-6BC34 soft starter is a phased-out product. Its successor is the SIRIUS 3RW5 series, with the preferred successor type being the Siemens 3RW5554-6HA14.