{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW3018-1BB14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW3018-1BB14","canonicalUrl":"https://aoctrl.com/siemens/3RW3018-1BB14","factsUrl":"https://aoctrl.com/api/mcp/products/3RW3018-1BB14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS soft starter, 3RW3018-1BB14, size S00, 17.6 A at 40 °C, 110...230 V DC control supply, integrated bypass contactor, screw and snap-on mounting.","salesMarkdown":"The Siemens 3RW3018-1BB14 is a SIRIUS soft starter in frame size S00, rated 17.6 A at 40 °C ambient with a 110…230 V DC control supply. The 17.6 A figure governs motor starting current — it is the maximum continuous current the thyristor stack can carry in standard duty, so size the motor FLA at or below that value. The integrated bypass contactor means the thyristors are shorted out after start, eliminating heat dissipation in the power section during run; this is the configuration for most conveyor, pump, and fan applications where prolonged starting is not required. The control wiring uses screw terminals for both the main current circuit and auxiliary/control circuit; the solid conductor range is 2x (0.25…2.5 mm²). ## Derating and ambient limits The 17.6 A rating holds at 40 °C; at 50 °C it derates to 17 A, and at 60 °C to 14 A. The derating temperature threshold is 40 °C, so a panel that runs warmer than 40 °C must use the lower current values for sizing.","metaTitle":"Siemens 3RW3018-1BB14 SIRIUS Soft Starter, 17.6A, Size S00","metaDescription":"Siemens 3RW3018-1BB14 SIRIUS soft starter, 17.6A at 40°C, size S00, 110-230V DC control. Integrated bypass. Current lifecycle stage. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"150mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45mm","title":"3RW3018-1BB14","Height":"95mm","Upwards":"60mm","Downwards":"40mm","Thyristors":"Yes","At The Side":"15mm","description":"SIRIUS soft starter S00 17.6 A, 7.5 kW/400 V, 40 °C 200-480 V AC, 110-230 V AC/DC Screw terminals","During Storage":"-40 ... +80°C","External Reset":"No","lifecycle_stage":"current","During Operation":"-25 ... +60°C","Fastening Method":"screw and snap-on mounting","Minimum Load [%]":"10%","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":"17.6A","at 50 °C rated value":"17A","at 60 °C rated value":"14A","For Auxiliary Contacts":"2x (20 ... 14)","For Main Current Circuit":"screw-type terminals","Motor Overload Protection":"No","Intrinsic Device Protection":"No","Adjustable Current Limitation":"No","Size Of Engine Control Device":"S00","Insulation Voltage Rated Value":"600V","Using The Front Clamping Point":"2x (16 ... 10)","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":"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","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":"7.5kW","at standard circuit at 50 °C rated value":"10hp","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%","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":"4W","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":"$225.00 – $285.27","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5528f1909f17c4b1f3cdddd992dcb42c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=142397&mlfb=3RW3018-1BB14"},"ai":{"faq":[{"question":"What are the key current ratings for 3RW3018-1BB14?","answer":"Rated 17.6 A at 40 °C, derating to 17 A at 50 °C and 14 A at 60 °C. Control supply is 110…230 V DC. Integrated bypass contactor handles the run current after start."},{"question":"Where can I buy 3RW3018-1BB14?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the mounting and wiring specification?","answer":"Screw and snap-on DIN-rail mounting, 45 mm wide. Main and control circuits use screw terminals; solid conductors 2x (0.25…2.5 mm²). Depth is 150 mm; allow 60 mm upward and 40 mm downward clearance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW3018-1BB14","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/3RW3018-1BB14 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}}