{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2150-4VA36-0NB3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2150-4VA36-0NB3","canonicalUrl":"https://aoctrl.com/siemens/3RA2150-4VA36-0NB3","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2150-4VA36-0NB3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2150-4VA36-0NB3 direct-on-line starter, size S2, 45 A at 400 V AC-3, CLASS 10, screw terminals, dual DIN rail, 150 mm depth, 55 mm width, 274 mm height.","salesMarkdown":"## What the AC-3 45 A rating and CLASS 10 trip mean for a motor circuit The 3RA2150-4VA36-0NB3: The 45 A at 400 V AC-3 rating tells you this starter switches squirrel-cage motors during starting and plugging — the contactor set inside handles the inrush without welding its main poles, provided the motor full-load current stays at or below that 45 A threshold. The supplied contactor is a 3RT2036-1NB30 and the link module is 3RA2931-1AA00 — the factory-assembled pair is tested as a coordinated unit, so the SCCR and type-2 coordination data from the SIRIUS manual holds without field re-verification. ## Mounting and integration into the panel Fastening method is screw and snap-on mounting to two 35 mm DIN rails — the S2 frame spans the full 55 mm width and 274 mm height, so the panel cutout and backplate layout must clear the 150 mm depth plus the 50 mm upwards and 32 mm forwards clearance for cable bending radius and arc-fault venting. Mounting position is vertical or horizontal — horizontal orientation derates the thermal trip by roughly 5 % because the bimetal strip convection changes, though the SIRIUS manual gives the exact curve. ## Lifecycle and sourcing — current production, quoted to order Lifecycle stage is current — Siemens still builds this SIRIUS S2 direct starter, so it is not a legacy or phase-out line. The substance prohibitance date of 03/01/2017 aligns with the original RoHS compliance cutover; no REACH SVHC sunset on the bill of materials has been announced.","metaTitle":"Siemens 3RA2150-4VA36-0NB3 SIRIUS Direct Starter, 45 A AC-3","metaDescription":"Siemens SIRIUS direct online starter 3RA2150-4VA36-0NB3, size S2, 45 A at 400 V AC-3, CLASS 10 trip, screw terminals, dual DIN rail mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"150 mm","Width":"55 mm","title":"3RA2150-4VA36-0NB3","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 35...45 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":"22 000 kW","at 480 V rated value":"45 A","at 50 Hz rated value":"20 ... 33 V","at 60 Hz rated value":"20 ... 33 V","at 600 V rated value":"45 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":"3RT2036-1NB30","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":"45 A","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"03/01/2017","at AC-3e at 400 V rated value":"45 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":"3RV2032-4VA10","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":"12.2 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":"650 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":"35 ... 45 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/74a7cee5b8b41816eaafe255fe79c1bf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=159492&mlfb=3RA2150-4VA36-0NB3"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 3RA2150-4VA36-0NB3?","answer":"The substance prohibitance date of 03/01/2017 indicates RoHS compliance was in effect from that date. The SIRIUS series carries CE and UKCA marking per the low-voltage directive; UL and CSA listings are available in the Siemens Industry Online Support documentation for the S2 frame family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2150-4VA36-0NB3","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/3RA2150-4VA36-0NB3 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}}