{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW3046-2BB14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW3046-2BB14","canonicalUrl":"https://aoctrl.com/siemens/3RW3046-2BB14","factsUrl":"https://aoctrl.com/api/mcp/products/3RW3046-2BB14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW3046-2BB14 soft starter, Size S3, 80 A at 40 °C, 50/60 Hz, screw-type terminals, 110-230 VDC control supply, DIN rail or screw mounting.","salesMarkdown":"## Frame size and mounting constraints The 3RW3046-2BB14 is a Size S3 SIRIUS soft starter — the frame that carries the 80 A rating at 40 °C. Dimensions are 170 mm high, 70 mm wide, and 190 mm deep, which fits a standard 200 mm deep enclosure with room for the required clearances: 60 mm above, 40 mm below, and 30 mm at the sides for airflow and wiring access. Mounting is via screw fixing or snap-on onto a DIN rail, with the unit rotatable ±10° or tiltable ±10° front-to-back on a vertical surface — useful when fitting into an existing panel where the rail is not perfectly plumb. ## Current rating and thermal reality The derating temperature threshold is 40 °C, so any panel ambient above that means the motor full-load current must be checked against the lower figure — a 75 A motor at 50 °C is within range, but at 60 °C the 66 A limit bites. Minimum load is 10 % of the rated current — below that the soft starter may not fire the thyristors reliably. This matters for unloaded motor testing or very small motors on the same unit. ## Wiring and termination Main circuit power terminals are screw-type, accepting 2 x (10 … 70 mm²) stranded or 2 x (10 … 50 mm²) finely stranded wire. Both front and back clamping points on the main terminals accept 10 … 2/0 AWG, giving flexibility for landing incoming and outgoing cables on opposite sides. Maximum motor cable length is 300 m — beyond that, capacitive charging current from the cable can cause nuisance tripping or prevent the starter from turning off cleanly. Keep the run under that limit, or add an output reactor. ## Control supply and environment Control supply voltage is 110 … 230 VDC — a wide-range DC input that covers standard 125 VDC and 220 VDC control buses without a separate power supply. The unit operates on 50 or 60 Hz line frequency, so it is at home on either 50 Hz or 60 Hz networks without adjustment. Rated insulation voltage is 600 V, with pollution degree 3 per IEC 60947-4-2 — suitable for industrial environments where conductive dust or condensation is present. No pin-compatible direct replacement exists within the SIRIUS family — the 3RW3046-2BB14 is the Size S3 variant at this current level. If a project needs a different frame size or current rating, the SIRIUS soft starter range offers other sizes, but they differ in footprint and terminal layout.","metaTitle":"Siemens 3RW3046-2BB14 SIRIUS Soft Starter, 80 A, Size S3","metaDescription":"Siemens 3RW3046-2BB14 SIRIUS soft starter, 80 A at 40 °C, Size S3, screw terminals, 110-230 VDC control supply. Active production, quoted to order.","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":"3RW3046-2BB14","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, 110-230 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 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","control supply voltage 1 at DC":"110 ... 230V","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","control supply voltage 1 at AC at 50 Hz":"110 ... 230V","control supply voltage 1 at AC at 60 Hz":"110 ... 230V","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","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/12238ed510f593115fd8dcda6f1b1659.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=203365&mlfb=3RW3046-2BB14"},"ai":{"faq":[{"question":"What is the closest alternative to 3RW3046-2BB14 in the SIRIUS family?","answer":"There is no pin-compatible direct replacement. The 3RW3046-2BB14 is the Size S3 variant at 80 A. Other SIRIUS soft starters differ in frame size, current rating, and terminal layout — a board or panel redesign would be needed to swap to a different size."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW3046-2BB14","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/3RW3046-2BB14 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}}