{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RW4024-2BB14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RW4024-2BB14","canonicalUrl":"https://aoctrl.com/siemens/3RW4024-2BB14","factsUrl":"https://aoctrl.com/api/mcp/products/3RW4024-2BB14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RW4024-2BB14 soft starter, S0 frame size, 12.5 A at 40 °C, 110-230 V DC control supply, integrated bypass, spring-loaded terminals, screw and snap-on mounting.","salesMarkdown":"## What this SIRIUS soft starter delivers The 3RW4024-2BB14: It carries an integrated bypass contact system, so once the motor is up to speed the thyristors are shorted out — no heat sink losses during run, and the bypass contact carries the continuous current. The control supply accepts 110-230 V DC, which covers most industrial control voltages without needing a separate supply converter. ## Current derating in the panel Derating temperature is 40 °C; above that the output must be reduced per the curve. The minimum load is 20 % of the rated current, which means it won't regulate properly on a lightly loaded motor. ## Mounting and wiring constraints Mounts on DIN rail via screw and snap-on — 45 mm wide, 150 mm tall, 155 mm deep. Clearance required: 60 mm above, 40 mm below, 15 mm at the sides. Main current circuit uses spring-loaded terminals accepting 2x (0.25-2.5 mm²) solid or 1x 8 mm² at the front clamping point. Auxiliary and control circuits also use spring-loaded terminals, 2x (24-14 AWG). No screw torque to check — just strip and push. Maximum wire length to the motor is 300 m — beyond that, voltage drop and cable capacitance can cause nuisance tripping or missed starts. ## Protection and adjustability Built-in motor overload protection and intrinsic device protection are standard — no separate overload relay needed for the soft starter itself. The current limitation is adjustable, so you can set the start current to match the load and the supply capacity. Pollution degree 3 per IEC 60947-4-2 means it's rated for industrial environments with conductive pollution — typical for control panels in factories and process plants. The storage climate class is 1K6 (occasional condensation, no salt mist, sand excluded). ## Lifecycle and supply No official successor or cross-reference is listed for this order code. The SIRIUS 3RW40 family is current; confirm the BOM line voltage and motor FLA against the derating table before committing.","metaTitle":"Siemens 3RW4024-2BB14 SIRIUS Soft Starter, 12.5 A, S0 Frame","metaDescription":"Siemens 3RW4024-2BB14 SIRIUS soft starter, S0 frame, 12.5 A at 40°C, integrated bypass, spring terminals. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Soft Starters"],"specifications":{"Depth":"155mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45mm","title":"3RW4024-2BB14","Height":"150mm","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, 110-230 V AC/DC spring-type 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%","For Main Contacts":"16 ... 10, 1x 8","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 40 °C rated value":"12.5A","at 50 °C rated value":"11A","at 60 °C rated value":"10A","For Auxiliary Contacts":"2x (24 ... 14)","For Main Current Circuit":"spring-loaded 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)","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":"5.5kW","at standard circuit at 50 °C rated value":"7.5hp","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%","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":"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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0bc3c858fbf51fb23e074b73c3f4a91a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=213083&mlfb=3RW4024-2BB14"},"ai":{"faq":[{"question":"What is the 3RW4024-2BB14 rated current at different temperatures?","answer":"12.5 A at 40 °C, 11 A at 50 °C, and 10 A at 60 °C. The derating temperature threshold is 40 °C."},{"question":"Does the 3RW4024-2BB14 have an integrated bypass?","answer":"Yes, it includes an integrated bypass contact system that shorts the thyristors after start, eliminating continuous heat-sink losses during run."},{"question":"What terminals does the 3RW4024-2BB14 use?","answer":"Spring-loaded terminals on both the main current circuit and the auxiliary/control circuits. Main circuit accepts 2x (0.25-2.5 mm²) solid or 1x 8 mm² at the front clamping point."},{"question":"What is the mounting footprint of the 3RW4024-2BB14?","answer":"45 mm wide, 150 mm tall, 155 mm deep. Requires 60 mm clearance above, 40 mm below, and 15 mm at the sides. Mounts via screw and snap-on on DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RW4024-2BB14","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/3RW4024-2BB14 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}}