{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW4024-1BB04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW4024-1BB04","canonicalUrl":"https://aoctrl.com/siemens/3RW4024-1BB04","factsUrl":"https://aoctrl.com/api/mcp/products/3RW4024-1BB04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS soft starter, 3RW4024-1BB04, 12.5 A rated current at 40 °C, 24 V AC/DC control supply, Size S0, screw-type terminals, integrated bypass contact system.","salesMarkdown":"Rated at 12.5 A at 40 °C, the 3RW4024-1BB04 derates to 11 A at 50 °C and 10 A at 60 °C. The derating threshold starts at 40 °C, so any panel ambient above that requires a downward adjustment in the motor FLA the starter can handle. For a 400 V motor, that 12.5 A at 40 °C corresponds to roughly 5.5 kW (standard 4-pole induction motor); at 60 °C the same motor would need a larger frame. ## Control supply and wiring Control supply is 24 V AC/DC, 50/60 Hz. Main power and control circuits terminate on screw-type terminals. For the main circuit, the terminal accepts 2x (0.5... 2.5 mm²) solid or stranded; auxiliary and control circuit terminals accept 2x (20... 14) AWG. A front clamping point is available for 1x 8 or 2x (16... 10) AWG. Maximum motor cable length is 300 m — keep that in mind for remote motor installations; longer runs may require output reactors. Mounts on DIN rail or directly with screws (screw and snap-on mounting). Dimensions: 45 mm wide, 125 mm high, 155 mm deep — fits a standard S0 footprint. Clearance requirements: 60 mm above, 40 mm below, 15 mm to the side. Mounting position is flexible with restrictions: with an additional fan, the unit can be mounted vertically with ±90° rotation and ±22.5° tilt front/back; without a fan, only ±10° rotation and ±10° tilt. ## Protection and adjustability Built-in motor overload protection and intrinsic device protection are standard. The current limitation is adjustable, and the minimum load is 20 % of the rated current — so it won't properly soft-start a motor drawing less than about 2.5 A. An external reset input allows remote fault reset. A red LED indicates fault signals.","metaTitle":"Siemens 3RW4024-1BB04 SIRIUS Soft Starter, 12.5 A, 24 V, Siz","metaDescription":"Siemens 3RW4024-1BB04 SIRIUS soft starter, 12.5 A at 40 °C, 24 V AC/DC control, Size S0, screw terminals, integrated bypass. Active production. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"155mm","Solid":"2x (0.5 ... 2.5 mm²)","Width":"45mm","title":"3RW4024-1BB04","Height":"125mm","Upwards":"60mm","Downwards":"40mm","Thyristors":"Yes","At The Side":"15mm","description":"SIRIUS soft starter S0 12.5 A, 5.5 kW/400 V, 40 °C 200-480 V AC, 24 V AC/DC Screw terminals","During Storage":"-40 ... +80°C","External Reset":"Yes","lifecycle_stage":"current","During Operation":"-25 ... +60°C","Fastening Method":"screw and snap-on mounting","Minimum Load [%]":"20%","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":"12.5A","at 50 °C rated value":"11A","at 60 °C rated value":"10A","For Auxiliary Contacts":"2x (20 ... 14)","For Main Current Circuit":"screw-type terminals","Motor Overload Protection":"Yes","Intrinsic Device Protection":"Yes","Adjustable Current Limitation":"Yes","Size Of Engine Control Device":"S0","Insulation Voltage Rated Value":"600V","Using The Front Clamping Point":"1x 8, 2x (16 ... 10)","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":"No","at standard circuit at 40 °C rated value":"5.5kW","at standard circuit at 50 °C rated value":"7.5hp","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":"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":"2W","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":"5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$371.18","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e280d73c0225525331cdac2a96ad33fb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=508370&mlfb=3RW4024-1BB04"},"ai":{"faq":[{"question":"Where can I buy 3RW4024-1BB04 and how do I get a price?","answer":"The 3RW4024-1BB04 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings of the 3RW4024-1BB04?","answer":"Rated 12.5 A at 40 °C (derates to 11 A at 50 °C, 10 A at 60 °C), control supply 24 V AC/DC, insulation voltage 600 V, operating frequency 50/60 Hz, and integrated bypass contact."},{"question":"What are the mounting dimensions and clearances for 3RW4024-1BB04?","answer":"Width 45 mm, height 125 mm, depth 155 mm. Required clearances: 60 mm above, 40 mm below, 15 mm to the side. Mounts via screw or snap-on on DIN rail."},{"question":"What compliance documentation does this brand provide for 3RW4024-1BB04?","answer":"The device is designed to IEC 60947-4-2 (pollution degree 3) and carries the SIRIUS brand. Specific RoHS, REACH, UL, and IEC declarations are available from the manufacturer upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW4024-1BB04","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/3RW4024-1BB04 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}}