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Siemens SIRIUS 3RW44 Soft Starter - 75kW, 134A Standard

Siemens SIRIUS 3RW4435-6BC44 soft starter for three-phase motors.

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ManufacturerSiemens
Part number3RW4435-6BC44
Model 3RW4435-6BC44
Rated Voltage 200-460 V AC
Standard Current (40°C) 134 A
Standard Power (40°C) 75 kW
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SIRIUS 3RW44 series Smooth motor starting Reduced mechanical stress Integrated bypass contact system Motor overload protection Adjustable current limitation 200-460V AC operating voltage

The Siemens SIRIUS 3RW4435-6BC44 is a high-performance soft starter designed to provide smooth and controlled starting of three-phase AC motors. It features values of 134A (75kW) in standard connection and 232A (132kW) in inside-delta connection at 400V and 40°C. The operating voltage range is 200-460V AC, with a control voltage of 230V AC.

This soft starter is ideal for applications requiring reduced mechanical stress during motor startup, such as in pumps, fans, compressors, and conveyor systems. It offers features like integrated bypass contact system, motor overload protection, and adjustable current limitation for enhanced reliability and motor longevity.

Stanlo Automation, a veteran-owned distributor of surplus automation parts, offers the Siemens 3RW4435-6BC44 SIRIUS soft starter. Ensure smooth motor starts and protect your equipment by sourcing from Stanlo Automation.

Model3RW4435-6BC44
Rated Voltage200-460 V AC
Standard Current (40°C)134 A
Standard Power (40°C)75 kW
Inside-Delta Current (40°C)232 A
Inside-Delta Power (40°C)132 kW
Control Voltage230 V AC
ConnectionsScrew Terminals
ProtectionIP00 (Enclosed)
Pump Control
Fan Control
Compressor Starting
Conveyor Systems
Industrial Automation
Motor Protection
Machine Tools
Three-phase AC Motors
SIRIUS Soft Starter 3RW44 Siemens 3RW4435-6BC44 75kW Soft Starter
This is a phased-out product. The preferred successor type is Siemens 3RW5535-6HA14.
Expert tip
This soft starter is phased out; consider the SIRIUS 3RW5 series, specifically the 3RW5535-6HA14, as a preferred successor.
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What are the standard and inside-delta current ratings for the Siemens 3RW4435-6BC44 at 400V?
The Siemens 3RW4435-6BC44 has a standard current rating of 134A (75kW) and an inside-delta current rating of 232A (132kW) at 400V and 40°C.