{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW4047-1TB05","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW4047-1TB05","canonicalUrl":"https://aoctrl.com/siemens/3RW4047-1TB05","factsUrl":"https://aoctrl.com/api/mcp/products/3RW4047-1TB05","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW4047-1TB05 soft starter, S3 frame, 106 A at 40 °C, 50/60 Hz, 600 V insulation voltage, screw-type terminals, IP20, active production.","salesMarkdown":"## Current derating and thermal limits The 3RW4047-1TB05: The derating temperature is 40 °C, so above that the current must be reduced per the curve — a panel builder sizing for a 55 °C enclosure interior should budget the 98 A figure, not the 106 A headline. ## Mounting and panel integration The S3 frame measures 170 mm high, 70 mm wide, and 190 mm deep. Clearance requirements: 60 mm above, 40 mm below, and 30 mm at the sides. Without an additional fan, the mounting surface must be vertical with only ±10° rotation and ±10° tilt — this restricts placement in angled sub-panels. ## Wiring and terminal capacity Main circuit terminals accept screw-type connections: 2x (10 … 70 mm²) stranded or 2x (10 … 50 mm²) finely stranded. The auxiliary contact terminals take 2x (20 … 14 AWG) solid. Maximum wire length to the motor is 300 m — beyond that, voltage drop and reflected-wave effects on the soft starter output need evaluation. ## Protection and control features Built-in motor overload protection and intrinsic device protection are standard. The adjustable current limitation lets the integrator set the starting current below the motor's locked-rotor value — minimum load is 20% of the rated current. An external reset input is provided for remote restart after a fault.","metaTitle":"Siemens 3RW4047-1TB05 SIRIUS Soft Starter, 106 A at 40 °C","metaDescription":"Siemens 3RW4047-1TB05 SIRIUS soft starter, 106 A at 40 °C, 50/60 Hz, 600 V insulation. Active production, quoted to order. Screw terminals, S3 frame.","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":"3RW4047-1TB05","Height":"170mm","Upwards":"60mm","Stranded":"2x (10 ... 70 mm²)","Downwards":"40mm","Thyristors":"Yes","At The Side":"30mm","description":"SIRIUS soft starter S3 106 A, 75 kW/500 V, 40 °C 400-600 V AC, 24 V AC/DC Screw terminals Thermistor motor protection","During Storage":"-40 ... +80°C","External Reset":"Yes","Finely Stranded":"2 x (10 ... 50 mm²)","lifecycle_stage":"current","During Operation":"-25 ... +60°C","Fastening Method":"screw and snap-on mounting","Minimum Load [%]":"20%","For Main Contacts":"2x (7 ... 1/0)","Mounting Position":"With additional fan: With vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back Without additional fan: With vertical mounting surface +/-10° rotatable, with vertical mounting surface +/- 10° t","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":"Yes","Using Both Clamping Points":"10 ... 2/0","Intrinsic Device Protection":"Yes","Adjustable Current Limitation":"Yes","Size Of Engine Control Device":"S3","Using The Back Clamping Point":"2x (10 ... 1/0)","Insulation Voltage Rated Value":"600V","Using The Front Clamping Point":"2x (10 ... 1/0)","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":"Yes","at standard circuit at 40 °C rated value":"75kW","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":"1","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"2","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":"400 ... 600V","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%","For Auxiliary Contacts Finely Stranded With Core End Processing":"2x (20 ... 16)","relative negative tolerance of the control supply voltage at DC":"-20%","relative positive tolerance of the control supply voltage at DC":"20%","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%","Adjustable Motor Current For Motor Overload Protection Minimum Rated Value":"46A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5a23cf54fd4b95822a7ee15b7ae77582.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=156424&mlfb=3RW4047-1TB05"},"ai":{"faq":[{"question":"What is 3RW4047-1TB05's listed depth?","answer":"The depth is 190 mm, with a height of 170 mm and width of 70 mm."},{"question":"What compliance documentation does Siemens provide for 3RW4047-1TB05?","answer":"The part carries a pollution degree 3 rating per IEC 60947-4-2. Standard Siemens documentation includes the declaration of conformity and CE marking; specific RoHS/REACH/UL declarations should be requested at RFQ time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW4047-1TB05","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/3RW4047-1TB05 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}