{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2220-4CD27-0BB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2220-4CD27-0BB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2220-4CD27-0BB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2220-4CD27-0BB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing starter, 3RA2220-4CD27-0BB4, S0 frame, 11 kW at 400 V AC-3, Class 10, 24 V DC coil, screw terminals, for 60 mm busbar systems.","salesMarkdown":"The 3RA2220-4CD27-0BB4: That 11 kW figure is the motor output the starter handles under standard starting conditions — the Class 10 trip characteristic means it protects against overload without nuisance tripping during normal acceleration (cite:). The 24 V DC coil keeps control circuits at safe extra-low voltage, common in PLC-driven panels where the I/O rail is 24 V (cite:). ## Mounting and integration — snaps onto 60 mm busbar systems This reversing starter is designed for snapping onto 60 mm busbar systems, not DIN rail — the busbar adapter 8US1251-5NT10 is supplied in the assembly (cite:,). Mounting position is vertical only (cite:). Dimensions are 260 mm height, 90 mm width, 165 mm depth (cite:,). Clearance requirements: 50 mm upward, 32 mm forward, 10 mm downward, 10 mm at the side, 0 mm backward (cite:,). ## What's inside the assembly — supplied sub-components The 3RA2220-4CD27-0BB4 ships as a complete reversing starter with the contactor 3RT2027-1BB40, link module 3RA2921-1BA00, circuit-breakers 3RV2021-4CA10, busbar adapter 8US1251-5NT10, and RS assembly kit 8US1250-5AT10 (cite:,). The overload release is thermal bimetallic with a magnetic short-circuit trip — standard motor protection coordination for a reversing application where the load can run in either direction (cite:,). Operating temperature range is -20 to +60 °C, with storage and transport range -50 to +80 °C (cite:,).","metaTitle":"Siemens 3RA2220-4CD27-0BB4 SIRIUS Reversing Starter, 11 kW","metaDescription":"Siemens SIRIUS reversing starter 3RA2220-4CD27-0BB4, 11 kW at 400 V AC-3, Class 10, 24 V coil, S0 frame. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"165 mm","Width":"90 mm","title":"3RA2220-4CD27-0BB4","Height":"260 mm","Upwards":"50 mm","Forwards":"32 mm","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"10 mm","Rated Value":"24 ... 24 V","description":"Load feeder fuseless, Reversing duty 400 V AC, Size S0 16...22 A 24 V DC screw terminal for 60 mm busbar systems (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":"for snapping onto 60 mm busbar systems","Mounting Position":"vertical","PROFIsafe protocol":"No","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Product Designation":"Reversing starter","Size Of Load Feeder":"S0","PROFINET IO protocol":"No","at 400 V rated value":"11 000 W","Design Of The Product":"for 60 mm busbars","For Main Current Circuit":"screw-type terminals","Temperature Compensation":"-20 ... +60 °C","Of The Supplied Contactor":"3RT2027-1BB40","Of The Supplied Link Module":"3RA2921-1BA00","Size Of The Circuit-Breaker":"S0","at AC-3 rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2009","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","of the supplied RS assembly kit":"8US1250-5AT10","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2021-4CA10","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 %","holding power of magnet coil at DC":"5.9 W","Surge Voltage Resistance Rated Value":"6 kV","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","protocol is supported AS-Interface protocol":"No","with high demand rate according to SN 31920":"73 %","shock resistance according to IEC 60068-2-27":"6g / 11 ms","Type Of Voltage Of The Control Supply Voltage":"DC","at 400 V according to IEC 60947-4-1 rated value":"150 000 A","operational current at AC-3 at 400 V rated value":"22 A","Mechanical Service Life (Switching Cycles) Of Contactor Typical":"10 000 000","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"16 ... 22 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/917ffacd39e764f4ba8fc69af258ca8f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=4054&mlfb=3RA2220-4CD27-0BB4"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2220-4CD27-0BB4","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/3RA2220-4CD27-0BB4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}