{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW3046-2BB04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW3046-2BB04","canonicalUrl":"https://aoctrl.com/siemens/3RW3046-2BB04","factsUrl":"https://aoctrl.com/api/mcp/products/3RW3046-2BB04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW3046-2BB04 soft starter, size S3, 80 A at 40 °C, 600 V insulation voltage, screw-type terminals, 170 x 70 x 190 mm.","salesMarkdown":"## 80 A at 40 °C — what the current ratings actually mean The 3RW3046-2BB04: That 40 °C reference point is the standard enclosure ambient — if your panel runs hotter, the usable current drops by roughly 9 % per 10 °C rise above 40 °C. Plan the motor FLA against the derated figure at your actual panel ambient, not the headline 80 A. The minimum load is 10 % of the rated current, so it won't regulate down to near-zero current for a lightly loaded motor. If the connected load is under 8 A at 40 °C, this soft starter may not fire the thyristors reliably. ## Panel fit and wiring — size S3, screw terminals, wire ranges Size S3 frame: 170 mm high, 70 mm wide, 190 mm deep. Mounts with screws or snaps onto DIN rail. The vertical mounting surface allows ±10° rotation and ±10° tilt front-to-back — useful for angled subpanels but not for horizontal or upside-down installation. Main circuit terminals accept 2x (10 … 70 mm²) stranded or 2x (10 … 50 mm²) finely stranded copper. All are screw-type — torque them to the value on the terminal marking, not by feel. The back and front clamping points each accept 10 … 2/0 AWG. Clearance around the unit: 60 mm above, 40 mm below, 30 mm at the sides. That's the minimum for airflow and wiring access — tighter spacing forces derating.","metaTitle":"Siemens 3RW3046-2BB04 SIRIUS Soft Starter, 80 A, Size S3","metaDescription":"Siemens 3RW3046-2BB04 SIRIUS soft starter, 80 A at 40 °C, size S3, screw terminals, 170x70x190 mm. Active production, quoted to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"190mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"70mm","title":"3RW3046-2BB04","Height":"170mm","Upwards":"60mm","Stranded":"2x (10 ... 70 mm²)","Downwards":"40mm","Thyristors":"Yes","At The Side":"30mm","description":"SIRIUS soft starter S3 80 A, 45 kW/400 V, 40 °C 200-480 V AC, 24 V AC/DC spring-type 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":"80A","at 50 °C rated value":"73A","at 60 °C rated value":"66A","For Auxiliary Contacts":"2x (24 ... 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":"spring-loaded 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 (0.25 ... 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":"45kW","at standard circuit at 50 °C rated value":"50hp","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":"12W","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/de802c7cfc5550e22a6db1dd6ce6b253.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=353154&mlfb=3RW3046-2BB04"},"ai":{"faq":[{"question":"What is the maximum motor cable length for the 3RW3046-2BB04?","answer":"300 m maximum. Beyond that, voltage drop and reflected-wave effects on the motor terminals become a concern, especially with the thyristor switching edges."},{"question":"What compliance documentation does Siemens provide for the 3RW3046-2BB04?","answer":"The evidence does not list specific RoHS, REACH, UL, or IEC certificates. Standard Siemens SIRIUS documentation applies — request the declaration of conformity and the CE/UKCA marking statement with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW3046-2BB04","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/3RW3046-2BB04 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}}