{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2225-4CD27-0AK6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2225-4CD27-0AK6","canonicalUrl":"https://aoctrl.com/siemens/3RA2225-4CD27-0AK6","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2225-4CD27-0AK6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2225-4CD27-0AK6 non-fused reversing motor starter, Size S0, Class 10 trip, 15 hp at 460/480 V AC-3, 690 V rated insulation, 155 mm depth, 90 mm width, 260 mm height, snaps onto 60 mm busbar systems.","salesMarkdown":"## Reversing starter for a 60 mm busbar panel The 3RA2225-4CD27-0AK6 is a SIRIUS non-fused reversing motor starter in Size S0, meaning it integrates a reversing contactor pair and overload relay in one assembly for forward/reverse control of a three-phase motor without external interlocks. It snaps directly onto 60 mm busbar systems, so it lands in a panel without a separate DIN-rail adapter — the busbar carries both the mounting and the main power feed. The supplied contactor is a 3RT2027-1AK60, and the link module is 3RA2921-1AA00 — these are the factory-matched components, not field-assembled parts. Trip Class 10 means the overload relay trips within 10 seconds at 600% of the set current, which protects standard squirrel-cage motors during a stall or jam without nuisance tripping on a normal start. ## Clearance and mounting constraints Mounting position is vertical only — horizontal installation changes the thermal characteristics of the overload relay and is not permitted. Minimum clearances: 30 mm upward, 10 mm forward, 10 mm downward, and 9 mm at the side; backward clearance is 0 mm, so the unit can sit flush against a backplate. Dimensions are 155 mm deep, 90 mm wide, and 260 mm tall — the width is the tightest constraint in a multi-starter lineup on 60 mm busbars. ## Lifecycle and sourcing posture RoHS compliance date is 03/01/2017, so it meets the EU substance restrictions for current equipment.","metaTitle":"Siemens 3RA2225-4CD27-0AK6 SIRIUS Reversing Starter, Size S0","metaDescription":"Siemens 3RA2225-4CD27-0AK6 SIRIUS non-fused reversing motor starter, Size S0, Class 10, 15 hp at 460/480 V. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"155 mm","Width":"90 mm","Height":"260 mm","Upwards":"30 mm","Forwards":"10 mm","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"9 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-55 ... +80 °C","Fastening Method":"for snapping onto 60 mm busbar systems","Mounting Position":"vertical","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Degree Of Pollution":"3","Product Designation":"non-fused motor starter 3RA2","Size Of Load Feeder":"S0","at 230 V rated value":"3 hp","at 400 V rated value":"11 000 W","at 480 V rated value":"22 A","at 50 Hz rated value":"88 ... 121 V","at 500 V rated value":"11 000 W","at 60 Hz rated value":"96 ... 132 V","at 600 V rated value":"21.9 A","Design Of The Product":"reversing starter","at 110/120 V rated value":"1.5 hp","at 200/208 V rated value":"5 hp","at 220/230 V rated value":"7.5 hp","at 460/480 V rated value":"15 hp","at 575/600 V rated value":"20 hp","Of The Supplied Contactor":"3RT2027-1AK60","For Main Contacts Stranded":"1 ... 10 mm², 2x (2.5 ... 6 mm²)","Of The Supplied Link Module":"3RA2921-1AA00","Size Of The Circuit-Breaker":"S0","at AC-3 rated value maximum":"690 V","Substance Prohibitance (Date)":"03/01/2017","Design Of The Overload Release":"thermal (bimetallic)","Of The Supplied Busbar Adapter":"8US1251-5NT10","Design Of The Switching Contact":"electromechanical","Operating Frequency Rated Value":"50 ... 60 Hz","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","of the supplied RS assembly kit":"3RA2923-1DB1","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2021-4CA15","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","apparent holding power of magnet coil at AC":"9.4 VA","number of NC contacts for auxiliary contacts":"3","number of NO contacts for auxiliary contacts":"3","shock resistance according to IEC 60068-2-27":"6g / 11 ms","at 400 V according to IEC 60947-4-1 rated value":"153 000 A","at 500 V according to IEC 60947-4-1 rated value":"100 000 A","operational current at AC-3 at 400 V rated value":"22 A","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Inductive Power Factor With The Holding Power Of The Coil":"0.28","Mechanical Service Life (Switching Cycles) Of Contactor Typical":"10 000 000","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"286 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":"17 ... 22 A","Connectable Conductor Cross-Section For Main Contacts Finely Stranded With Core End Processing":"1 ... 6 mm²"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ef22de170cf7745dcd7e592d382cd1df.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=285689&mlfb=3RA2225-4CD27-0AK6","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA2225-4CD27-0AK6/alternatives.json"},"ai":{"faq":[{"question":"What are the operating temperature limits for this reversing starter?","answer":"During operation the range is -20 to +60 °C; storage is -50 to +80 °C; transport is -55 to +80 °C."},{"question":"What wire sizes does the main contact terminal accept?","answer":"Stranded wire from 1 to 10 mm², or two conductors of 2.5 to 6 mm² each."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2225-4CD27-0AK6","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/3RA2225-4CD27-0AK6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}