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Siemens SIRIUS 3RW4037-1BB04 Soft Starter - 63A

Siemens SIRIUS 3RW4037-1BB04 soft starter, 63A, 30kW/400V.

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ManufacturerSiemens

Part number3RW4037-1BB04

Part Number 3RW4037-1BB04

Manufacturer Siemens

Series SIRIUS

Type Soft Starter

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12-month warranty

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Veteran-owned

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Smooth motor starting Reduced mechanical stress Overload protection Extended equipment life 24V AC/DC control Screw terminals

Product description

The Siemens SIRIUS 3RW4037-1BB04 is a soft starter designed to provide smooth and controlled acceleration for three-phase AC motors. With a rating of 63 A and 30 kW at 400 V, it operates within a voltage range of 200-480 V AC and uses a 24 V AC/DC control voltage. It features screw terminals for easy and secure wiring.

This soft starter is ideal for applications requiring reduced mechanical stress on machinery during startup, such as conveyor systems, pumps, and fans. It helps to prevent jolts and surges, extending equipment life and improving operational reliability.

As a veteran-owned surplus parts distributor, Stanlo Automation provides the Siemens SIRIUS 3RW4037-1BB04. We offer high-quality, tested components to ensure your industrial automation systems run efficiently and reliably.

Technical specifications

Part Number	3RW4037-1BB04
Manufacturer	Siemens
Series	SIRIUS
Type	Soft Starter
Rated Current	63 A
Power	30 kW/400 V
Voltage Range	200-480 V AC
Control Voltage	24 V AC/DC
Terminals	Screw terminals

Common applications

Conveyor Systems

Pump Control

Fan Control

Compressors

Machine Tools

Material Handling

Compatible systems

Compatible with 3-phase AC induction motors

Also known as

Siemens SIRIUS Soft Starter 63A

Replaces / compatible with

This soft starter replaces direct-on-line or star-delta starters in applications where controlled motor ramp-up is required, offering better performance and protection.

Technical note

Expert tip

Ensure the motor's full load current does not exceed the 63A rating of the soft starter. Also, confirm the control voltage (24V AC/DC) is correctly supplied to the control terminals.

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Frequently asked questions

What is the control voltage for the Siemens 3RW4037-1BB04 SIRIUS soft starter?

The Siemens SIRIUS 3RW4037-1BB04 soft starter operates with a control voltage of 24 V AC/DC. This allows for integration into control systems that utilize standard DC control voltages or AC control power.