{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2220-4AH26-0BB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2220-4AH26-0BB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2220-4AH26-0BB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2220-4AH26-0BB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing starter, size S0, 3RA2220-4AH26-0BB4, 16 A AC-3 at 400 V, Trip Class 10, spring-loaded terminals, for 60 mm busbar systems.","salesMarkdown":"It ships with the 3RT2026-2BB40 contactor and 3RA2921-2AA00 link module already integrated, so you wire the main circuit once and get reversing duty without building it from loose components. Rated 16 A at AC-3 at 400 V, it switches three-phase motor loads up to 7.5 kW (10 hp at 460/480 V) under full load. The Trip Class 10 overload curve means it trips within 10 seconds at 7.2× rated current — standard protection for standard induction motors, not for high-inertia loads that need Class 20 or 30. Snaps directly onto 60 mm busbar systems — no DIN rail adapter needed. The 165 mm depth, 90 mm width, and 260 mm height fit a standard S0 footprint, so it swaps into existing S0 busbar layouts without re-drilling the backplate. The 24 V control voltage is fixed — no dual-voltage coil — so verify your control transformer matches before wiring.","metaTitle":"Siemens 3RA2220-4AH26-0BB4 SIRIUS Reversing Starter","metaDescription":"Siemens SIRIUS 3RA2220-4AH26-0BB4 reversing starter, size S0, 16 A AC-3 at 400 V, Trip Class 10, snaps onto 60 mm busbars. Current lifecycle stage.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"165 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":"24 ... 24 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","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 230 V rated value":"2 hp","at 400 V rated value":"7 500 kW","at 480 V rated value":"16 A","at 600 V rated value":"16 A","Design Of The Product":"for 60 mm busbars","For Main Current Circuit":"spring-loaded terminals","Temperature Compensation":"-20 ... +60 °C","at 110/120 V rated value":"1 hp","at 200/208 V rated value":"5 hp","at 220/230 V rated value":"5 hp","at 460/480 V rated value":"10 hp","Of The Supplied Contactor":"3RT2026-2BB40","Of The Supplied Link Module":"3RA2921-2AA00","Size Of The Circuit-Breaker":"S0","at AC-3 rated value maximum":"690 V","at AC-3 at 400 V rated value":"16 A","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2009","at AC-3e at 400 V rated value":"16 A","Design Of The Overload Release":"thermal (bimetallic)","Design Of The Switching Contact":"electromechanical","Operating Frequency Rated Value":"50 ... 60 Hz","of the supplied RS assembly kit":"3RA2923-1DB2","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2021-4AA20","degree of protection NEMA rating":"other","For Auxiliary And Control Circuit":"spring-loaded terminals","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","Without Load Current Share Typical":"5.9 W","holding power of magnet coil at DC":"5.9 W","Surge Voltage Resistance Rated Value":"6 kV","at AC in hot operating state per pole":"5 W","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 %","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":"DC","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","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"208 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":"10 ... 16 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/021fe39e76dc32a60564bb43df6c8285.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=32270&mlfb=3RA2220-4AH26-0BB4","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA2220-4AH26-0BB4/alternatives.json"},"ai":{"faq":[{"question":"Can 3RA2220-4AH26-0BB4 be used for reversing duty?","answer":"Yes, it is a reversing starter — the product designation confirms it, and the factory-assembled contactor and link module handle forward/reverse switching without external interlocking wiring."},{"question":"Where can I buy 3RA2220-4AH26-0BB4?","answer":"This part is sourced to order against RFQ. Availability and pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2220-4AH26-0BB4","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/3RA2220-4AH26-0BB4 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}}