Siemens Industrial Automation

3RW4037-1BB05

Siemens 3RW4037-1BB05 SIRIUS soft starter with 63 A rated current, 37 kW at 500 V, 24 V AC/DC control supply and screw terminals. Check a legacy-part request.

Complete Product Information
Product Code
3RW4037-1BB05
Dimensions
16.9 × 7 × 19.8 cm
Weight
1.28 kg
Lifecycle
Active Product
Availability
Check availability with quotation
Lead Time
Confirmed with quotation
Product Attachment
Download technical file

Availability, lead time, condition and warranty are confirmed for each quotation.

Product Information

Technical Product Information

Product Description

Key Features

  • Rated current and power: Rated current: 63 A at 40 °C. Standard-circuit rating: 37 kW at 500 V and 30 kW at 400 V.
  • Operating voltage and frequency: Rated operating voltage: 400 … 600 V. Rated operating frequency: 50 … 60 Hz at 500 V.
  • Control supply: Control supply: AC/DC, 24 V at 50 Hz, 60 Hz, and DC, with -20 % to 20 % tolerance.
  • Protection and control functions: Has integrated bypass contact system, thyristors, intrinsic device protection, motor overload protection, external reset, and adjustable current limitation. Thermistor motor protection evaluation, inside-delta circuit, and motor brake output are not included.
  • Connections and mounting: Main, auxiliary, and control circuits use screw-type terminals. Mounting: screw and snap-on mounting. Front protection: IP20.

Technical Summary

Product identity Siemens 3RW4037-1BB05, SIRIUS S2 soft starter
Rated current at 40 °C 63 A
Standard-circuit rating at 500 V and 40 °C 37 kW
Standard-circuit rating at 400 V and 40 °C 30 kW
Rated operating voltage 400 … 600 V
Rated operating frequency 50 … 60 Hz at 500 V
Control supply AC/DC, 24 V at 50 Hz, 60 Hz, and DC
Mounting Screw and snap-on mounting
Electrical connection Screw-type terminals for main, auxiliary, and control circuits
Front protection IP20
Lifecycle Active Product

Frequently Asked Questions

What exact model should be confirmed for this soft starter?

Confirm Siemens 3RW4037-1BB05, SIRIUS S2, with 63 A rated current and 37 kW at 500 V.

What control supply does the Siemens 3RW4037-1BB05 use?

It uses an AC/DC control supply of 24 V at 50 Hz, 60 Hz, and DC.

What terminals are provided?

The main, auxiliary, and control circuits use screw-type terminals.

What protection and functions are included?

It has intrinsic device protection, motor overload protection, external reset, adjustable current limitation, an integrated bypass contact system, and thyristors. Thermistor motor protection evaluation, inside-delta circuit, and motor brake output are not included.

Product Information

RFQ Information

When contacting us by email, include the model or part number, quantity, brand, specifications and destination. Product or nameplate photos can help identify the requested item.

01Which product reference should I send?

Send the complete model, order number or MLFB shown on the product. Include the hardware version when it matters.

02How are supply terms confirmed?

Availability, condition, lead time, warranty and delivery terms are stated for the specific quotation.

03What helps with replacement requests?

Share the installed model, application, electrical and mechanical requirements, communication interface and a clear nameplate photo.

Product RFQ

Send the Details Needed for a Quotation

Use the form for the product model, quantity and contact details. Add the destination and technical questions in the message.

When contacting us by email, include the model or part number, quantity, brand, specifications and destination. Product or nameplate photos can help identify the requested item.

Email Your Requirement

* Email is required. Other fields are optional, but more detail helps us respond accurately.

Request a Quote