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The Siemens 3RW4424-1BC44 is a SIRIUS Soft Starter designed for the soft starting and stopping of three-phase asynchronous motors. It is commonly used for motor management, offering protection features, but it is not a standard "motor protection circuit breaker" (like a 3RV series); it is an intelligent, reduced-voltage soft starter with electronic overload protection.
Key Features and Technical Specifications:
- Model: 3RW44 24-1BC44 (SIRIUS 3RW44 series)
- Rated Power (400 V, 40°C): 22 kW (Standard Circuit)
- Rated Power (Inside-Delta): 45 kW (at 400 V)
- Rated Operational Current (): 47 A (Standard), 81 A (Inside-Delta)
- Voltage Range: 200 to 460 V AC
- Control Supply Voltage: 230 V AC
- Terminals: Screw Terminals
- Motor Protection: Integrated electronic motor overload protection (yes) and thermistor motor protection evaluation.
- Status: This item is often listed as a "phased-out product" by Siemens.
Common Applications:
It is used in industrial automation, pumps, fans, and conveyor systems to reduce inrush current and mechanical stress on motors.
It is used in industrial automation, pumps, fans, and conveyor systems to reduce inrush current and mechanical stress on motors.
Please note: This product is listed with multiple sellers on eBay and industrial marketplace sites, often with "new" or "used" statuses, as it is a mature or phased-out model.
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Data sheet 3RW4424-1BC44 - Support
Siemens
https://support.industry.siemens.com › teddatasheet
Siemens
https://support.industry.siemens.com › teddatasheet
PDF
Apr 1, 2025 — General technical data product brand name. SIRIUS product designation. Soft starter product feature. ○ integrated bypass contact system.Read more
3RW4424-1BC44 1pc New IN BOX Siemens Soft Starter ...
eBay
https://www.ebay.com › itm
eBay
https://www.ebay.com › itm
Processing Time: Orders are processed and shipped within 3 business days of payment. Shipping Options: We offer multiple shipping options to meet your needs ...Read more
Wholesale Smart Circuit Breaker 3RW4424-1BC44, High Quality ...
henengindustry.com
https://www.henengindustry.com › smart-circuit-breaker-...
henengindustry.com
https://www.henengindustry.com › smart-circuit-breaker-...
Wholesale our Smart Circuit Breaker 3RW4424-1BC44 with factory price. we are leading Smart Circuit Breaker 3RW4424-1BC44 supplier in China, good after-sales ...
3RW4424-1BC44 Soft Start by SIEMENS
Radwell International
https://www.radwell.com › Buy › 3RW4424-1BC44
Radwell International
https://www.radwell.com › Buy › 3RW4424-1BC44
3RW4424-1BC44 Drives from SIEMENS 2-Year Warranty, Radwell Repairs - SOFT START, 47/81 AMP, 230 VAC, 10/15/25 HP, 22/45 KW, SCREW TERMINALS.
Product data sheet 3RW4424-1BC44 - RS Online
rs-online.com
https://docs.rs-online.com › ...
rs-online.com
https://docs.rs-online.com › ...
PDF
Mar 12, 2013 — • motor overload protection. Yes. • evaluation of thermal resistor ... Adjustable rated current / of the motor / for motor overload.Read more
3RW4424-1BC44 1pc New IN BOX Siemens Soft Starter ...
eBay
https://www.ebay.com › itm
eBay
https://www.ebay.com › itm
3RW4424-1BC44 1pc New IN BOX Siemens Soft Starter 22KW 3RW4424-1BC44 ; 24/7 Customer Support: Our dedicated support team is available around the clock to assist ...Read more
3RW4424-1BC44 | Siemens
PLC-City
https://www.plc-city.com › ... › Soft starters
PLC-City
https://www.plc-city.com › ... › Soft starters
Buy Now Siemens 3RW4424-1BC44 brand new & guaranteed, at the best price. Your shopping destination for industrial automation.
$2,329.232–4 day delivery30-day returns
Data sheet 3RW44 24-1BC44
ADEGIS
https://adegis.com › media › asset
ADEGIS
https://adegis.com › media › asset
PDF
Aug 10, 2018 — ○ Intrinsic device protection. Yes. ○ motor overload protection. Yes. ○ Evaluation of thermistor motor protection. Yes. ○ External reset. Yes.Read more
3RW4424-1BC44 - Siemens Product Information
siemens-info.com
https://www.industry-mobile-support.siemens-info.com › ...
siemens-info.com
https://www.industry-mobile-support.siemens-info.com › ...
SIRIUS soft starter Values at 400 V, 40 °C standard: 47 A, 22 kW Inside-delta: 81 A, 45 kW 200-460 V AC, 230 V AC Screw terminals !!! Phased-out product !!!Read more
Siemens Soft Starter Models
Sogears
https://www.sogears.com › All Blog
Sogears
https://www.sogears.com › All Blog
Apr 21, 2020 — Motor protection by the SIRIUS 3RW soft starter is ensured for currents up to 8 times the rated operational current Ie in any case. Line ...Read more
