Siemens 3RW4037-1BB04

Siemens 3RW4037-1BB04 | SIRIUS Soft Starter (45A, 400V, 24V AC/DC Control Voltage)

Overview

The Siemens 3RW4037-1BB04 is a SIRIUS 3RW40 series soft starter, designed to enable smooth motor acceleration while minimizing mechanical wear and electrical stress. With a rated current of 45A, a 400V operating voltage, and 24V AC/DC control voltage, this soft starter is ideal for industrial motors, pumps, conveyors, and HVAC systems.

Key Features

• Soft Motor Starting & Stopping – Reduces inrush current and mechanical stress.
• 45A Rated Current – Suitable for mid-sized industrial motor loads.
• 400V AC Operating Voltage – Standard industrial power system compatibility.
• 24V AC/DC Control Voltage – Allows flexible control options.
• Bypass Contact System – Increases efficiency and reduces heat dissipation.
• Compact & Robust Design – Optimized for space-saving control panel installation.

Technical Specifications

• Model: 3RW4037-1BB04
• Series: SIRIUS 3RW40
• Rated Operational Current: 45A
• Operating Voltage: 400V AC
• Control Voltage: 24V AC/DC
• Phase Configuration: 3-Phase
• Bypass Contactor: Integrated
• Protection Features: Overload protection, soft start & stop function
• Mounting Type: DIN Rail
• Certifications: CE, UL, RoHS

Applications

• Pumps & Compressors: Provides smooth starting to minimize pressure surges.
• Conveyor Systems: Reduces mechanical stress and increases motor lifespan.
• HVAC Systems: Ensures controlled acceleration for fans and blowers.
• Industrial Automation: Supports efficient motor control in automated processes.

Why Choose the Siemens 3RW4037-1BB04?

• Enhances Motor Lifespan – Limits inrush current, reducing wear and tear.
• Energy-Efficient Operation – Reduces power consumption and system stress.
• Compact & Reliable – Designed for industrial environments with long-term durability.

Order Now

Optimize your motor control system with the Siemens 3RW4037-1BB04 SIRIUS soft starter. Fast shipping and worldwide delivery available.

Original Manufacturer Packaging

These products are industrial surplus items preserved in the original manufacturer box. Learn More

DDPARTSSOLUTION Packaging

These products are industrial surplus items shipped in secure DDPARTSSOLUTION protective packaging. Learn More

Refurbished

These products have been previously installed or may show cosmetic signs of prior handling. Learn More