{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW3047-1BB04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW3047-1BB04","canonicalUrl":"https://aoctrl.com/siemens/3RW3047-1BB04","factsUrl":"https://aoctrl.com/api/mcp/products/3RW3047-1BB04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW3047-1BB04 soft starter, S3 frame, 106 A at 40 °C, 24 V AC control, screw and snap-on mounting.","salesMarkdown":"The Siemens 3RW3047-1BB04 is a SIRIUS soft starter in the S3 frame size, designed to ramp induction motors up to speed and reduce inrush current during start. It's built around thyristors for the power stage, so no mechanical contacts wear out on starts. This unit is rated for a continuous motor current of 106 A at 40 °C, derating to 98 A at 50 °C and 90 A at 60 °C — the 40 °C figure is the one to spec by unless your panel runs hot. Control is 24 V AC at either 50 or 60 Hz, common for standard PLC output cards. It accepts vertical mounting with ±10° rotation or tilt, so panel layout is flexible. Clearance specs: 60 mm above, 40 mm below, 30 mm at the sides. Main circuit connections are screw-type terminals, accepting 2x (10–70 mm²) stranded or 2x (10–50 mm²) finely stranded copper. Solid wire is 2x (0.5–2.5 mm²). The AWG equivalents for the main terminals are 2x (7–1/0) using both clamping points, or 10–2/0 using either the front or back clamping point alone. Insulation voltage is rated 600 V. Pollution degree 3 per IEC 60947-4-2, so it's fine in standard industrial panels. ## What it doesn't have (so you don't get caught) A few things to note that aren't on this variant: no external reset, no inside-delta circuit, no motor overload protection built in, no intrinsic device protection, and no adjustable current limitation. Minimum load is 10% of the rated current. Maximum motor cable length is 300 m. These aren't flaws — they define the feature set, so if your application needs any of those, this isn't the variant.","metaTitle":"Siemens 3RW3047-1BB04 SIRIUS Soft Starter, 106A, S3 Frame","metaDescription":"Siemens 3RW3047-1BB04 SIRIUS soft starter, 106 A at 40 °C, S3 frame, 24 V AC/50-60 Hz control. Screw and snap-on mounting. In current production. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"190mm","Solid":"2x (0.5 ... 2.5 mm²)","Width":"70mm","title":"3RW3047-1BB04","Height":"170mm","Upwards":"60mm","Stranded":"2x (10 ... 70 mm²)","Downwards":"40mm","Thyristors":"Yes","At The Side":"30mm","description":"SIRIUS soft starter S3 106 A, 55 kW/400 V, 40 °C 200-480 V AC, 24 V AC/DC Screw terminals","During Storage":"-40 ... +80°C","External Reset":"No","Finely Stranded":"2 x (10 ... 50 mm²)","lifecycle_stage":"current","During Operation":"-25 ... +60°C","Fastening Method":"screw and snap-on mounting","Minimum Load [%]":"10%","For Main Contacts":"2x (7 ... 1/0)","Mounting Position":"With vertical mounting surface +/-10° rotatable, with vertical mounting surface +/- 10° tiltable to the front and back","Product Brand Name":"SIRIUS","Degree Of Pollution":"3, acc. to IEC 60947-4-2","Product Designation":"Soft starter","Wire Length Maximum":"300m","Derating Temperature":"40°C","Inside-Delta Circuit":"No","at 50 Hz rated value":"24V","at 60 Hz rated value":"24V","at 40 °C rated value":"106A","at 50 °C rated value":"98A","at 60 °C rated value":"90A","For Auxiliary Contacts":"2x (20 ... 14)","For Main Current Circuit":"screw-type terminals","Motor Overload Protection":"No","Using Both Clamping Points":"2x (10 ... 1/0)","Intrinsic Device Protection":"No","Adjustable Current Limitation":"No","Size Of Engine Control Device":"S3","Using The Back Clamping Point":"10 ... 2/0","Insulation Voltage Rated Value":"600V","Using The Front Clamping Point":"10 ... 2/0","Operating Frequency Rated Value":"50 ... 60Hz","Display Version For Fault Signal":"red","Integrated Bypass Contact System":"Yes","For Auxiliary And Control Circuit":"screw-type terminals","Product Component Motor Brake Output":"No","during storage according to IEC 60721":"1K6 (only occasional condensation), 1C2 (no salt mist), 1S2 (sand must not get inside the devices), 1M4","reference code according to EN 61346-2":"Q","during operation according to IEC 60721":"3K6 (no formation of ice, no condensation), 3C3 (no salt mist), 3S2 (sand must not get into the devices), 3M6","during transport according to IEC 60721":"2K2, 2C1, 2S1, 2M2 (max. fall height 0.3 m)","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Evaluation Of Thermistor Motor Protection":"No","at standard circuit at 40 °C rated value":"55kW","at standard circuit at 50 °C rated value":"75hp","control supply voltage 1 at DC rated value":"24V","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"1","Type Of Voltage Of The Control Supply Voltage":"AC/DC","Control Supply Voltage Frequency 1 Rated Value":"50Hz","Control Supply Voltage Frequency 2 Rated Value":"60Hz","Installation Altitude At Height Above Sea Level":"5 000m","continuous operating current [% of Ie] at 40 °C":"115%","Operating Voltage At Standard Circuit Rated Value":"200 ... 480V","contact rating of auxiliary contacts according to UL":"B300 / R300","Relative Negative Tolerance Of The Operating Frequency":"-10%","Relative Positive Tolerance Of The Operating Frequency":"10%","relative negative tolerance of the control supply voltage at DC":"-15%","relative positive tolerance of the control supply voltage at DC":"10%","Relative Negative Tolerance Of The Control Supply Voltage Frequency":"-10%","Relative Positive Tolerance Of The Control Supply Voltage Frequency":"10%","Relative Negative Tolerance Of The Operating Voltage At Standard Circuit":"-15%","Relative Positive Tolerance Of The Operating Voltage At Standard Circuit":"10%","power loss [W] at operational current at 40 °C during operation typical":"21W","relative negative tolerance of the control supply voltage at AC at 50 Hz":"-15%","relative negative tolerance of the control supply voltage at AC at 60 Hz":"-15%","relative positive tolerance of the control supply voltage at AC at 50 Hz":"10%","relative positive tolerance of the control supply voltage at AC at 60 Hz":"10%"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$701.04 – $1,092.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f6044ea3b43d8b9c5e07ca12b1d598a5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=123393&mlfb=3RW3047-1BB04"},"ai":{"faq":[{"question":"What are the key current ratings for the 3RW3047-1BB04?","answer":"Rated motor current is 106 A at 40 °C, derating to 98 A at 50 °C and 90 A at 60 °C. The 40 °C figure is the baseline to use for sizing unless your ambient is higher."},{"question":"What is the control voltage and frequency?","answer":"24 V AC at 50 or 60 Hz."},{"question":"What are the mounting dimensions and clearances?","answer":"Width 70 mm, height 170 mm, depth 190 mm. Clearance required: 60 mm above, 40 mm below, 30 mm at the sides. Mounts vertically with ±10° rotation or tilt."},{"question":"What wire sizes does the main circuit accept?","answer":"Screw terminals accept 2x (10–70 mm²) stranded, 2x (10–50 mm²) finely stranded, or 2x (0.5–2.5 mm²) solid. AWG equivalents: 2x (7–1/0) using both clamping points, or 10–2/0 using a single clamping point."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW3047-1BB04","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RW3047-1BB04 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}