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Siemens 3RW4075-6BB44 industrial automation product
Siemens 3RW4075-6BB44 nameplate and hardware view
Siemens 3RW4075-6BB44 product detail view

Siemens 3RW4075-6BB44 SIRIUS S12 356 A Soft Starter

Siemens / SIRIUS / 3RW40

3RW4075-6BB44 SIRIUS Soft Starter

The Siemens 3RW4075-6BB44 is a discontinued SIRIUS 3RW40 soft starter, size S12, rated at 356 A with 200-460 V AC operating voltage and 230 V AC control supply.

The preferred successor is 3RW5075-6AB14. Verify motor current, 200 kW rating conditions, line voltage, control voltage, terminals, dimensions and wiring before replacement.

Order Number3RW4075-6BB44
SeriesSIRIUS 3RW40
SizeS12
Rated Current356 A
LifecycleDiscontinued
Lead Time2-3 DAYS
Order check: send the soft-starter label, motor nameplate, mains and control voltages, wiring details, quantity and destination.
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Product Specifications
Manufacturer Siemens AG
Item number 3RW4075-6BB44
Country of Origin Czech Republic
Lead Time 2-3 DAYS
After-Sales Support One-year warranty, please contact May
HS Code / Commodity code 85371098
FAQ

Quotes are valid for 30 days from the day the quote is received unless stated otherwise at the time of quotation.

Yes,we offer one year warranty for all new products.

Yes. We worked with FEDEX/DHL/TNT/UPS/ allowing us to provide swift global delivery of parts to any corner of the world.

Normally 3-5 working days,some remote areas 5-7 days more.

Product information
01

SIRIUS 3RW40 Rating & Lifecycle

The Siemens 3RW4075-6BB44 is a SIRIUS 3RW40 soft starter in size S12. Siemens lists 356 A rated current, 200 kW at 400 V and 40 degrees C, 200-460 V AC operating voltage, 230 V AC control supply and screw-terminal connections.

ManufacturerSiemens
Order Number3RW4075-6BB44
Rated Current356 A
Motor Output200 kW at 400 V / 40 C
Operating Voltage200-460 V AC
Control Supply230 V AC
SizeS12
Lead Time2-3 DAYS
Lifecycle and successorSiemens marks 3RW4075-6BB44 as phased out/discontinued and names 3RW5075-6AB14 as the preferred successor.
Official logistics dataSiemens lists a net weight of 9.00 kg and package dimensions of 343 x 321 x 221 mm. Country of origin is Czech Republic and commodity code is 85371098.
02

Motor Match & 3RW5 Migration Check

A safe replacement decision must compare the installed motor and circuit data with both the discontinued 3RW40 unit and the proposed 3RW5 successor.

1. Record the motor dataCapture motor rated current, power, line voltage, duty and the actual application load from the nameplate and drawings.
2. Confirm the mains rangeVerify that the installed circuit operates within the 200-460 V AC range specified for 3RW4075-6BB44.
3. Match the control supplyConfirm the 230 V AC control-supply requirement before connecting a replacement unit.
4. Check rating conditionsThe 200 kW value is stated at 400 V and 40 degrees C; site conditions and starting duty must be reviewed separately.
5. Compare terminals and spaceReview screw-terminal wiring, the S12 installation space and the official package/mechanical data before retrofit.
6. Engineer the successor change3RW5075-6AB14 is the preferred successor, but electrical, mechanical and parameter differences must be checked before installation.
03

Buyer Questions for Siemens 3RW4075-6BB44

What are the current and motor-power ratings of Siemens 3RW4075-6BB44?Siemens rates 3RW4075-6BB44 at 356 A and 200 kW at 400 V under a 40 degrees C reference condition.
Which voltages are required by Siemens 3RW4075-6BB44?The operating-voltage range is 200-460 V AC, and the control-supply voltage is 230 V AC.
Is Siemens 3RW4075-6BB44 discontinued?Yes. Siemens marks 3RW4075-6BB44 as phased out/discontinued; the official product page should be used for lifecycle confirmation.
What is the preferred successor to Siemens 3RW4075-6BB44?Siemens identifies 3RW5075-6AB14 as the preferred successor. A qualified review of motor data, wiring, controls, dimensions and settings is still required.
What shipping data does Siemens publish for 3RW4075-6BB44?Siemens lists 9.00 kg net weight and package dimensions of 343 x 321 x 221 mm for 3RW4075-6BB44.
What information should be sent for a Siemens 3RW4075-6BB44 inquiry?Provide the unit label, motor nameplate, mains and control voltages, duty, wiring photos, quantity, destination, delivery date and any required Siemens manuals.
04

About Company

Global sourcing and technical support worldwide.
Automation engineer inspecting an industrial control cabinet
Years of Global ExperienceWith 20+ years of industry experience, we serve customers worldwide and have built long-term relationships across the UK, Russia, UAE, India, Venezuela, and more.
Professional Support TeamOur experienced team provides reliable pre-sales and after-sales support, helping customers select suitable products and resolve purchasing concerns.
Wide Range of BrandsWe supply leading automation brands covering PLCs, DCS, I/O modules, drives, motors, power supplies, communication modules, and more.
Large In-Stock InventoryA wide range of products is available from stock, including discontinued, obsolete, and hard-to-find parts, helping reduce sourcing time.
Honesty & TrustWe value long-term cooperation and treat every customer with honesty, respect, responsibility, and care.
Your Trusted Automation PartnerFrom a single replacement part to complete automation projects, we are ready to support your needs and build a long-term partnership.
05

Transaction Cases

Sincere Cooperation, Long-Term Trust

RussiaA Russian customer urgently needed a replacement for a discontinued automation component. After reviewing the product label, technical parameters, and application details, our engineers recommended a compatible alternative and provided photos and test videos before shipment. The alternative performed well, enhancing the customer's confidence in our technical capabilities and leading to multiple repeat orders.
IndiaAn Indian customer still had doubts after initial online communication with us, so they visited our company in person for a face-to-face meeting and product inspection. This visit increased the customer's trust and led to the successful placement of their first order. Over the next few years, we completed multiple orders and established a stable, long-term partnership.
VenezuelaA Venezuelan customer needed a specific automation component and compared products and services from several suppliers online. After nearly three weeks of careful consideration, our sincere communication, professional service, and reliable product quality won the customer's trust. After receiving the product and using it for several weeks without any problems, the customer gave us positive feedback and subsequently placed multiple orders.
06

Mixed Automation Model References

Selected model references for multi-brand sourcing inquiries. Send the full label photo to confirm manufacturer, revision and configuration.

01  6ES7518-4FP00-0AB0
02  CC-GAIX21
03  6ES7222-1BF32-0XB0
04  1756-IF8
05  CC-PAIX01
06  PM857K01
07  6ES7288-1CR20-0AA0
08  AAT141
09  1756-L81EP
10  6ES7336-4GE00-0AB0
11  DO524
12  TU531
13  CC-TAIX11
14  5069-L306ERMS2
15  VI701
16  AAV141
17  PM5132-T-ETH
18  1756-EN4TR
19  6ES7522-5EH00-0AB0
20  AAI143
21  6ES7390-1AE80-0AA0
22  CC-GDIL21
23  6ES7288-1CR40-0AA1
24  6ES7211-1AE40-0XB0
25  6ES7232-4HA30-0XB0
26  5069-L340ERM
27  1756-PB75
28  6ES7654-7HC00-0XA0
29  KJ4002X1-BA1
30  CI867K01
31  6ES7288-1ST40-0AA1
32  6ES7392-1AM00-0AA0
33  6ES7511-1CK01-0AB0
34  SD832
35  6ES7288-6EC01-0AA0
36  CC-TAOX01
37  6GK7542-5DX00-0XE0
38  1756-L72
39  DC522
CONTACT

Send Your 3RW4075-6BB44 Inquiry

Include the soft-starter label, motor nameplate, mains and control voltages, duty, quantity, destination and required delivery date.

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