{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2220-4BD26-0AK6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2220-4BD26-0AK6","canonicalUrl":"https://aoctrl.com/siemens/3RA2220-4BD26-0AK6","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2220-4BD26-0AK6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2220-4BD26-0AK6 reversing starter, size S0, 15.5 A at 400 V AC-3, Class 10 thermal overload, for 60 mm busbar systems, screw terminals.","salesMarkdown":"## Motor rating and trip class for reversing duty The 3RA2220-4BD26-0AK6: The maximum operating voltage is 690 V AC-3, and the unit is designed for 50/60 Hz supply. Coil voltage range is 88–121 V at 50 Hz and 96–132 V at 60 Hz, covering common 110 V control circuits. ## Integrated components and busbar mounting The reversing starter ships as a pre-assembled unit: a 3RT2026-1AK60 contactor, a 3RV2021-4BA10 circuit-breaker with magnetic short-circuit trip, and a 3RA2921-1AA00 link module. The circuit-breaker provides the short-circuit protection (magnetic trip) while the thermal bimetallic overload relay handles overloads — both are integrated into the S0 feeder size. ## Environmental limits and compliance Operating temperature range is -20 to +60 °C; storage and transport range is -50 to +80 °C. The unit is rated for surge voltage withstand of 6 kV, and the main current circuit has 3 poles. The product extension auxiliary switch is available (not included as standard). Substance prohibited date is 05/01/2012 — the unit complies with RoHS and REACH requirements as of that date. Main circuit connections are screw-type terminals.","metaTitle":"Siemens 3RA2220-4BD26-0AK6 Reversing Starter, S0","metaDescription":"Siemens SIRIUS reversing starter, size S0, rated 15.5 A at 400 V AC-3, Class 10 trip. Snaps onto 60 mm busbar systems. Current production, quoted to order.","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":"50 mm","Forwards":"32 mm","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"10 mm","Rated Value":"690 V","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","Product Brand Name":"SIRIUS","Type Of Assignment":"1","Product Designation":"Reversing starter","Size Of Load Feeder":"S0","at 400 V rated value":"7 500 W","at 50 Hz rated value":"88 ... 121 V","at 60 Hz rated value":"96 ... 132 V","Design Of The Product":"for 60 mm busbars","For Main Current Circuit":"screw-type terminals","Of The Supplied Contactor":"3RT2026-1AK60","Of The Supplied Link Module":"3RA2921-1AA00","Size Of The Circuit-Breaker":"S0","at AC-3 rated value maximum":"690 V","at AC-3 at 400 V rated value":"15.5 A","Substance Prohibitance (Date)":"05/01/2012","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":"3RV2021-4BA10","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":"9.8 VA","with high demand rate according to SN 31920":"73 %","shock resistance according to IEC 60068-2-27":"6g / 11 ms","at 400 V according to IEC 60947-4-1 rated value":"150 000 A","Mechanical Service Life (Operating 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":"13 ... 20 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6bf209707486a99c8c46da3411d28d1b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=386327&mlfb=3RA2220-4BD26-0AK6","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA2220-4BD26-0AK6/alternatives.json"},"ai":{"faq":[{"question":"What is the AC-3 current rating of 3RA2220-4BD26-0AK6 at 400 V?","answer":"The trip class is Class 10."},{"question":"Does 3RA2220-4BD26-0AK6 mount on a DIN rail or busbar?","answer":"It snaps onto 60 mm busbar systems. It is not designed for standard DIN rail — the fastening method is specifically for 60 mm busbars."},{"question":"What components are included in the 3RA2220-4BD26-0AK6 reversing starter?","answer":"The unit includes a 3RT2026-1AK60 contactor, a 3RV2021-4BA10 circuit-breaker, and a 3RA2921-1AA00 link module. The circuit-breaker provides magnetic short-circuit protection; the overload relay is thermal bimetallic, Class 10."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2220-4BD26-0AK6","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/3RA2220-4BD26-0AK6 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}}