3RW4038-1BB14

The 3RW4038-1BB14 is a Siemens SIRIUS 3RW40 series S2 housing soft starter with a rated operating voltage of 200 to 480V, a rated current of 62A at 50°C, and a capacity of 40HP at 460V. The control power supply voltage covers 110 to 230V AC/DC, eliminating the need for a separate control transformer.

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Siemens SIRIUS 3RW4038-1BB14 Wide Control Voltage Soft Starter Product Image

Product Positioning

The 3RW4038-1BB14 is a Siemens SIRIUS 3RW40 series S2 housing soft starter with a rated current of 62A. It supports a wide voltage range of 110 to 230V AC/DC and is suitable for smooth starting applications of small and medium power three-phase motors.

Core Product Advantages and Features

Wide range control power supply

The control circuit supports 110 to 230V AC/DC, eliminating the cost of installing a separate low-voltage control transformer.

S2 casing 62A rated

The rated current is 62A at 50°C, which corresponds to a motor of approximately 20kW at 230V and approximately 40HP at 460V.

Adjustable current limiting startup

Adjust the starting current limit value according to the motor characteristics to reduce the impact on the mechanical structure at the moment of starting.

Compact chassis saves space

It belongs to the S2 smaller housing class and is suitable for control panel installation needs with limited space.

project	Specification
Case size	S2
Rated current (50°C)	62 A
Rated operating voltage	200...480 V AC
Control power supply voltage	110...230 V AC/DC
Motor power (230V)	Approximately 20 kW
Motor power (460V, UL)	40 HP
Main circuit terminal type	Screw terminals
Main standards	IEC 60947-4-2
Reference weight (S2 casing)	Approximately 1.35 kg
Applicable occasions	Three-phase motor applications such as pumps, conveyors, and compressors

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