{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2150-4UA35-0NB3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2150-4UA35-0NB3","canonicalUrl":"https://aoctrl.com/siemens/3RA2150-4UA35-0NB3","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2150-4UA35-0NB3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2150-4UA35-0NB3 direct-on-line starter, Size S2, AC-3 40 A at 400 V, Trip Class 10, screw-type terminals, 55 × 150 × 274 mm.","salesMarkdown":"## Motor switching duty — AC-3 40 A at 400 V The 3RA2150-4UA35-0NB3: The supplied contactor is a 3RT2035-1NB30, paired with link module 3RA2931-1AA00 — the assembly is a factory-matched direct-on-line starter, not a field-built combination. ## Panel integration — dual DIN rail footprint Mounts via screw and snap-on to two 35 mm DIN rails, in vertical or horizontal orientation — the 55 mm width and 150 mm depth fit standard S2 feeder profiles. Clearance requirements: 50 mm upwards, 32 mm forwards, 10 mm downwards, 10 mm at the side, 0 mm backwards — plan the enclosure depth and gland plate accordingly. ## Environmental range and compliance Operates from -20 to +60 °C with temperature compensation across the same range; storage and transport limits extend from -50 to +80 °C. RoHS substance prohibitance date is 03/01/2017 — compliance documentation (RoHS, REACH) is available through the standard Siemens declaration channels.","metaTitle":"Siemens 3RA2150-4UA35-0NB3 SIRIUS Direct Starter, AC-3 40 A","metaDescription":"Siemens 3RA2150-4UA35-0NB3 SIRIUS direct-on-line starter, AC-3 40 A at 400 V, Trip Class 10. Active production, quoted to order. RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"150 mm","Width":"55 mm","title":"3RA2150-4UA35-0NB3","Height":"274 mm","Upwards":"50 mm","Forwards":"32 mm","at 50 Hz":"2 VA","at 60 Hz":"2 VA","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"10 mm","Rated Value":"20 ... 33 V","description":"Load feeder fuseless, Direct-on-line starting 400 V AC, Size S2 32...40 A 20... 33 V AC/DC screw terminal for installation on standard mounting rail (also fulfills type of coordination 1) Type of coordination 2, Iq = 150 kA 1 NO+1 NC (contactor) with circuit (integrated)","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting to two 35 mm DIN rails","Mounting Position":"vertical, horizontal","PROFIsafe protocol":"No","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Product Designation":"Direct (on-line) starter","Size Of Load Feeder":"S2","PROFINET IO protocol":"No","at 400 V rated value":"18 500 kW","at 480 V rated value":"40 A","at 50 Hz rated value":"20 ... 33 V","at 60 Hz rated value":"20 ... 33 V","at 600 V rated value":"40 A","Design Of The Product":"for standard rail or screw mounting","For Main Current Circuit":"screw-type terminals","Temperature Compensation":"-20 ... +60 °C","Of The Supplied Contactor":"3RT2035-1NB30","Of The Supplied Link Module":"3RA2931-1AA00","Size Of The Circuit-Breaker":"S2","at AC-3 rated value maximum":"690 V","at AC-3 at 400 V rated value":"40 A","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"03/01/2017","at AC-3e at 400 V rated value":"40 A","Design Of The Overload Release":"thermal (bimetallic)","Design Of The Switching Contact":"electromechanical","Operating Frequency Rated Value":"50 ... 60 Hz","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2032-4UA10","degree of protection NEMA rating":"other","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","Without Load Current Share Typical":"2 W","holding power of magnet coil at DC":"1 W","Surge Voltage Resistance Rated Value":"6 kV","at AC in hot operating state per pole":"8.9 W","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","apparent holding power of magnet coil at AC":"2 VA","protocol is supported AS-Interface protocol":"No","reference code according to IEC 81346-2:2019":"Q","shock resistance according to IEC 60068-2-27":"6g / 11 ms","Type Of Voltage Of The Control Supply Voltage":"AC/DC","at 400 V according to IEC 60947-4-1 rated value":"150 000 A","Inductive Power Factor With The Holding Power Of The Coil":"1","Mechanical Service Life (Operating Cycles) Of Contactor Typical":"10 000 000","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"585 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"32 ... 40 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/70ee4b3795482d63676d79143a20b170.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=243365&mlfb=3RA2150-4UA35-0NB3"},"ai":{"faq":[{"question":"What are the key ratings for 3RA2150-4UA35-0NB3?","answer":"Trip Class 10 overload protection. Control voltage range 20 to 33 V, drawing 2 VA at 50/60 Hz."},{"question":"What panel space does 3RA2150-4UA35-0NB3 require?","answer":"Dimensions are 55 mm wide, 150 mm deep, 274 mm high. Mounts on two 35 mm DIN rails with 50 mm upward clearance, 32 mm forward, 10 mm downward, 10 mm side clearance, and 0 mm backward."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2150-4UA35-0NB3","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/3RA2150-4UA35-0NB3 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}}