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Siemens SIRIUS 3RW4436-6BC34 Soft Starter - 145A, 100HP

Siemens SIRIUS 3RW44 Soft Starter

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ManufacturerSiemens

Part number3RW4436-6BC34

Rating 145A Standard (100hp) / 251A Inside-Delta (200hp)

Voltage 200-460V AC

Control Voltage 115V AC

Terminals Screw

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Veteran-owned

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Soft starting and ramp-down 200-460V AC operation 115V AC control voltage Screw terminals Suitable for motors up to 200hp

Product description

The Siemens SIRIUS 3RW4436-6BC34 is a soft starter designed for the soft starting and ramp-down of three-phase asynchronous motors. It provides a standard rating of 145 A at 460 V, 50°C, and 100 hp, with an inside-delta rating of 251 A and 200 hp. The unit operates on 200-460 V AC with a 115 V AC control voltage and features screw terminals.

This soft starter is suitable for a wide range of industrial applications, including pumps, fans, compressors, and machine tools. It offers smooth motor acceleration, reducing mechanical stress and power system disturbances.

Stanlo Automation, your veteran-owned source for surplus industrial parts, offers the Siemens 3RW4436-6BC34. Please note this is a phased-out product, with the SIRIUS 3RW5 series being its successor.

Technical specifications

Rating	145A Standard (100hp) / 251A Inside-Delta (200hp)
Voltage	200-460V AC
Control Voltage	115V AC
Terminals	Screw
Poles	3
Enclosure	IP00

Common applications

Motor Control

Pump Systems

Fan Control

Compressor Starters

Industrial Machinery

Compatible systems

Three-phase asynchronous motors

Also known as

Siemens SIRIUS 3RW44 Soft Starter 3RW4436 Soft Starter

Replaces / compatible with

This product is phased out. The preferred successor is the SIRIUS 3RW5536-6HA14.

Technical note

Expert tip

This unit is rated IP00 and requires appropriate enclosure for protection in industrial environments.

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Frequently asked questions

What is the successor to the Siemens 3RW4436-6BC34 soft starter?

The Siemens 3RW4436-6BC34 soft starter has been phased out. The preferred successor is the SIRIUS 3RW5, specifically the 3RW5536-6HA14 model.