{"product_id":"siemens-3rw4457-6bc44-industrial-automation-module-heavy-duty","title":"Siemens 3RW4457-6BC44 Industrial Automation Module - Heavy-Duty","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eWhen reliable, controlled motor starting is critical, the \u003cstrong\u003eSiemens 3RW4457-6BC44\u003c\/strong\u003e SIRIUS soft starter delivers robust performance for demanding industrial applications. This phased-out unit is a proven workhorse, now superseded by the \u003cstrong\u003eSiemens 3RW5556-6HA14\u003c\/strong\u003e. The \u003cstrong\u003eSiemens 3RW4457-6BC44\u003c\/strong\u003e features integrated bypass and thyristor control, providing smooth acceleration and protection for high‑inertia loads.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperational current at 40 °C (standard circuit):\u003c\/strong\u003e 880 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperational current at 40 °C (inside‑delta circuit):\u003c\/strong\u003e 1524 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated power at 400 V (standard circuit, 40 °C):\u003c\/strong\u003e 500 kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated power at 400 V (inside‑delta circuit, 40 °C):\u003c\/strong\u003e 900 kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating voltage (standard\/inside‑delta):\u003c\/strong\u003e 200–460 V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl supply voltage:\u003c\/strong\u003e 230 V AC (50\/60 Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor overload protection:\u003c\/strong\u003e Adjustable from 176 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower loss typical:\u003c\/strong\u003e 250 W at operational current\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePollution degree:\u003c\/strong\u003e 3 per IEC 60947‑4‑2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eSiemens 3RW4457-6BC44\u003c\/strong\u003e excels in heavy‑duty motor control, including pumps, compressors, conveyors, and crushers. With an inside‑delta capability rated at 1524 A, it handily manages large three‑phase motors in applications requiring frequent starts or extended ramp times. Its integrated bypass reduces heat dissipation and extends contactor life, making it ideal for continuous processes.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Mounting\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003eSiemens 3RW4457-6BC44\u003c\/strong\u003e soft starter has dimensions of 510 × 640 × 290 mm (W×H×D) and uses screw fixing. It can be mounted on a vertical surface with ±90° rotation and ±22.5° tilt front\/back. Required side‑by‑side spacing: 100 mm upward, 5 mm lateral, 75 mm downward. Main circuit connections accept busbars; auxiliary terminals use screw‑type connections.\u003c\/p\u003e\u003ch2\u003eSelection Guide\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify that your motor’s rated current and voltage fall within the \u003cstrong\u003eSiemens 3RW4457-6BC44\u003c\/strong\u003e operating range (200–460 V AC, up to 880 A standard). Since this unit is phased out, PLC Source PRO also stocks the preferred successor, Siemens 3RW5556-6HA14. For assistance in selecting the right soft starter for your application, contact the experts at ubest101.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default","offer_id":44409483100259,"sku":"3RW4457-6BC44","price":263.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/3RW4457-6BC44.jpg?v=1785156056","url":"https:\/\/www.plcsourcepro.com\/products\/siemens-3rw4457-6bc44-industrial-automation-module-heavy-duty","provider":"PLC Source PRO","version":"1.0","type":"link"}