{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2150-4XA37-0AP0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2150-4XA37-0AP0","canonicalUrl":"https://aoctrl.com/siemens/3RA2150-4XA37-0AP0","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2150-4XA37-0AP0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2150-4XA37-0AP0 direct online motor starter, S2 frame, 59 A AC-3 at 400 V, 690 V max, Class 10, 55 x 150 x 274 mm, screw/DIN-rail mount.","salesMarkdown":"## 59 A AC-3 at 400 V — the number that sizes the motor branch The 3RA2150-4XA37-0AP0: This is not a thermal continuous rating — it's the making and breaking capability under full-load starting conditions. It's the standard choice for pumps, fans, and compressors that accelerate within a few seconds. The maximum system voltage is 690 V AC-3, so this starter handles 400 V and 480 V networks with headroom, but not 690 V systems — that's the ceiling, not a recommendation for continuous 690 V motor operation. ## S2 frame — panel fit and mounting reality Clearance around the unit: 50 mm above, 32 mm in front, 10 mm below, and 10 mm to each side. The zero backwards clearance means it sits flush against the back panel — no extra depth needed behind the DIN rail. ## What's in the box — pre-assembled, no separate ordering This is a factory-assembled direct online starter that ships with the contactor (3RT2037-1AP00,) and the link module (3RA2931-1AA00,) already integrated. No separate contactor or bus-bar ordering — it's one order code for the complete motor branch. The overload release is thermal bimetallic — field-adjustable, no electronic drift, and no auxiliary power needed for the trip function. The switching contact is electromechanical, not hybrid or solid-state, so it's a direct replacement for existing SIRIUS installations. Control coil voltage is 230 V at 50 Hz — single nominal, not a dual-voltage coil. Confirm your control transformer matches before wiring. ## Lifecycle and compliance — active, no obsolescence concern Operating ambient range is -20 to +60 °C with storage/transport range of -50 to +80 °C.","metaTitle":"Siemens 3RA2150-4XA37-0AP0 SIRIUS Motor Starter, 59 A AC-3","metaDescription":"Siemens SIRIUS 3RA2150-4XA37-0AP0 direct online motor starter, 59 A at 400 V AC-3, Class 10, S2 frame, 55 mm wide. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"150 mm","Width":"55 mm","title":"3RA2150-4XA37-0AP0","Height":"274 mm","Upwards":"50 mm","Forwards":"32 mm","at 50 Hz":"0.37","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"10 mm","Rated Value":"690 V","description":"Load feeder fuseless, Direct-on-line starting 400 V AC, Size S2 49...59 A 230 V AC, 50 Hz 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)","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":"30 000 kW","at 480 V rated value":"59 A","at 50 Hz rated value":"230 ... 230 V","at 600 V rated value":"52 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":"3RT2037-1AP00","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":"59 A","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"03/01/2017","at AC-3e at 400 V rated value":"59 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":"3RV2032-4XA10","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":"16 W","Surge Voltage Resistance Rated Value":"6 kV","at AC in hot operating state per pole":"12.5 W","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","apparent holding power of magnet coil at AC":"16 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","at 400 V according to IEC 60947-4-1 rated value":"150 000 A","Inductive Power Factor With The Holding Power Of The Coil":"0.37","Mechanical Service Life (Operating Cycles) Of Contactor Typical":"10 000 000","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"845 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":"49 ... 59 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e7f96a320dd91d87462b5068a48c2984.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=301895&mlfb=3RA2150-4XA37-0AP0"},"ai":{"faq":[{"question":"What are the key ratings for 3RA2150-4XA37-0AP0?","answer":"AC-3 motor-switching current is 59 A at 400 V with a maximum system voltage of 690 V. Trip Class 10 for standard motor starting. The S2 frame measures 55 x 150 x 274 mm and mounts on two 35 mm DIN rails."},{"question":"What compliance documentation does Siemens provide for 3RA2150-4XA37-0AP0?","answer":"RoHS compliance is confirmed by the substance prohibitance date of 03/01/2017. The operating temperature range is -20 to +60 °C, and storage/transport range is -50 to +80 °C. No UL, CSA, or IEC certification numbers are in this evidence, but Siemens SIRIUS starters typically carry IEC 60947-4-1 and UL 508 certification — verify the specific listing for your jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2150-4XA37-0AP0","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/3RA2150-4XA37-0AP0 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}}