{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW3026-2BB14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW3026-2BB14","canonicalUrl":"https://aoctrl.com/siemens/3RW3026-2BB14","factsUrl":"https://aoctrl.com/api/mcp/products/3RW3026-2BB14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW3026-2BB14 soft starter, size S0, 25 A at 40 °C, 45 mm wide, 110-230 V DC control, spring-loaded terminals, integrated bypass.","salesMarkdown":"## What the 25 A rating means in a panel The 3RW3026-2BB14: An integrated bypass contact system shorts the thyristors once the motor reaches full speed, eliminating the semiconductor conduction losses during run — the soft starter then dissipates only the bypass contactor's heat, not the full I²R of the SCRs. This means the enclosure heat load during steady-state is lower than a non-bypassed design, a real advantage in a densely packed panel. Control supply is 110-230 V DC, a wide-range input that accepts common DC bus voltages without a separate power supply — useful when the panel already carries a 110 V or 220 V DC rail for PLCs and contactors. ## Mounting and wiring — DIN rail fit and terminal access The mounting position allows ±10° rotation and tilt relative to vertical, so it fits in enclosures where the rail isn't perfectly plumb. Clearance requirements: 60 mm above, 40 mm below, 15 mm to the side — these are the minimum air gaps for airflow and arc containment. The wire length to the motor is capped at 300 m, which matters for long cable runs where capacitive charging current could nuisance-trip the starter. Main circuit terminals are spring-loaded, accepting 16-8 AWG. Auxiliary and control circuit terminals are also spring-loaded, taking 24-14 AWG. The front clamping point handles 8 AWG or two 16-10 AWG conductors — useful for daisy-chaining control power without a separate terminal block. ## Environmental and compliance — industrial duty The storage classification per IEC 60721 includes occasional condensation (class 1K6) and no salt mist (1C2) — not suitable for coastal outdoor installation without additional enclosure protection.","metaTitle":"Siemens 3RW3026-2BB14 SIRIUS Soft Starter, 25 A, Size S0","metaDescription":"Siemens 3RW3026-2BB14 SIRIUS soft starter, 25 A at 40 °C, size S0, integrated bypass, 110-230 V DC control. Active production, quoted to order.","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":"3RW3026-2BB14","Height":"150mm","Upwards":"60mm","Downwards":"40mm","Thyristors":"Yes","At The Side":"15mm","description":"SIRIUS soft starter S0 25 A, 11 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","lifecycle_stage":"current","During Operation":"-25 ... +60°C","Fastening Method":"screw and snap-on mounting","Minimum Load [%]":"10%","For Main Contacts":"16 ... 8","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":"25A","at 50 °C rated value":"23A","at 60 °C rated value":"21A","For Auxiliary Contacts":"2x (24 ... 14)","For Main Current Circuit":"spring-loaded terminals","Motor Overload Protection":"No","Intrinsic Device Protection":"No","Adjustable Current Limitation":"No","Size Of Engine Control Device":"S0","Insulation Voltage Rated Value":"600V","Using The Front Clamping Point":"1x 8, 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":"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":"11kW","at standard circuit at 50 °C rated value":"15hp","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":"8W","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/189c31c69ae3a51d98fcf6785b0c5a09.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=56170&mlfb=3RW3026-2BB14"},"ai":{"faq":[{"question":"What is the closest alternative to 3RW3026-2BB14 in the SIRIUS family?","answer":"Within the same SIRIUS 3RW30 series, the next steps up or down in current rating share the same form factor and terminal layout — the deciding factor is the motor FLA at your panel ambient temperature. No pin-compatible drop-in with a different current rating exists; selection follows the motor nameplate."},{"question":"What compliance documentation does Siemens provide for 3RW3026-2BB14?","answer":"The soft starter is designed to IEC 60947-4-2 (pollution degree 3) and rated for 50/60 Hz operation. Siemens typically provides a CE declaration of conformity, UL/CSA recognition, and a RoHS/REACH compliance statement upon request. The specific certification numbers are not listed in this spec set, but the product carries the CE mark for EU markets."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW3026-2BB14","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/3RW3026-2BB14 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}}