3RW4047-1BB15

The 3RW4047-1BB15 is a Siemens SIRIUS 3RW40 series S3 housing soft starter with a rated operating voltage ranging from 400 to 600V, a rated current of 98A at 50°C, and is compatible with 75HP motors at both 460V and 575V. The control power supply voltage is 24V AC/DC.

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Product Positioning

The 3RW4047-1BB15 is an S3 housing soft starter in the Siemens SIRIUS 3RW40 series, suitable for operating voltages from 400 to 600V, with a rated current of 98A. It covers 460V and 575V motor applications and is suitable for industrial power grids with higher voltage levels.

Core Product Advantages and Features

Wide operating voltage range

The rated operating voltage ranges from 400 to 600V, which can be used with higher voltage grids such as 575V.

Corresponding to 75HP motor level

A 75HP three-phase motor can be used with both 460V and 575V voltages.

24V AC/DC control power supply

The control circuit is designed for 24V, which facilitates integration and wiring with common low-voltage control systems.

Built-in overload and current limiting protection

It integrates adjustable current-limiting start-up and motor overload monitoring, reducing the need for additional wiring.

project	Specification
Case size	S3
Rated current (50°C)	98 A
Rated operating voltage	400...600 V AC
Control power supply voltage	24 V AC/DC
Motor power (460V, UL)	75 HP
Motor power (575V, UL)	75 HP
Main circuit terminal type	Screw terminals
Main standards	IEC 60947-4-2
Reference weight (S3 casing)	Approximately 1.9 kg
Applicable occasions	Three-phase motor applications such as pumps, conveyors, and compressors

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