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Siemens SIRIUS 3RW4455-2BC34 Soft Starter - 615A, 500HP

Siemens SIRIUS soft starter, 615A standard, 500HP, 200-460V AC.

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ManufacturerSiemens

Part number3RW4455-2BC34

Rated Current (Standard) 615 A

Rated Current (Inside-Delta) 1065 A

Voltage 200-460 V AC

Max Motor Power 500 hp

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Veteran-owned

CAGE: 9NK75

Smooth motor start-up Reduces mechanical and electrical stress 615A standard rating 1065A inside-delta rating 200-460V AC operation Spring-type terminals

Product description

The Siemens SIRIUS soft starter, part number 3RW4455-2BC34, is designed for smooth motor starting. It handles standard currents of 615 A and inside-delta currents of 1065 A at 460 V and 50°C, suitable for motors up to 500 hp. The unit operates on 200-460 V AC power and features 115 V AC spring-type terminals.

This soft starter is used in industrial applications to reduce mechanical stress on machinery and electrical stress on the power supply during motor start-up. It is ideal for applications like conveyor systems, pumps, fans, and compressors where gradual acceleration is beneficial.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 3RW4455-2BC34. Though a phased-out product, we can help you find this component or suitable alternatives for your needs.

Technical specifications

Rated Current (Standard)	615 A
Rated Current (Inside-Delta)	1065 A
Voltage	200-460 V AC
Max Motor Power	500 hp
Terminals	Spring-type

Common applications

Conveyor Systems

Pump Control

Fan Control

Compressor Starters

Industrial Motor Control

Compatible systems

AC Induction Motors

Also known as

Siemens SIRIUS Soft Starter 3RW4455-2BC34 Starter Siemens Motor Starter

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens SIRIUS 3RW5553-2HA14.

Technical note

Expert tip

Ensure proper heat dissipation as the 50°C rating is based on standard conditions; derating may be required in higher ambient temperatures.

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Frequently asked questions

What is the successor to the Siemens 3RW4455-2BC34 soft starter?

The Siemens 3RW4455-2BC34 is a phased-out product. The preferred successor is the Siemens SIRIUS 3RW5553-2HA14. This updated model likely offers improved features and current standards.