{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2220-1KD24-0BB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2220-1KD24-0BB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2220-1KD24-0BB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2220-1KD24-0BB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing starter, size S0, 12 A AC-3 at 400 V, Class 10, 24 V coil, snap-on 60 mm busbar, 260 x 90 x 165 mm.","salesMarkdown":"## S0 reversing starter, 12 A AC-3, snap-on 60 mm busbar The 3RA2220-1KD24-0BB4: It snaps onto 60 mm busbar systems (cites:) — no DIN rail adapter needed — and the vertical mounting position (cites:) keeps the arc chambers oriented correctly. The supplied contactor is a 3RT2024-1BB40 (cites:), the link module is 3RA2921-1BA00 (cites:), and the circuit-breaker is size S00 (cites:). Main circuit terminals are screw-type (cites:). ## Motor ratings across common line voltages At 110/120 V it covers 0.75 hp (cites:). These are the NEMA horsepower equivalents for the AC-3 current ratings — useful when the BOM calls out hp instead of amps. The AC-3e rating matches the AC-3 ceiling at 690 V (cites:) — the 'e' suffix indicates the enhanced electrical endurance for IEC 60947-4-1. At 480 V the rated current is 11 A (cites:); at 600 V it's 10 A (cites:). That derating is typical as voltage climbs — the arc energy increases, so the contactor's switching capacity drops slightly. ## Panel fit: dimensions and clearances The starter measures 260 mm high by 90 mm wide by 165 mm deep (cites:,). For side-by-side mounting on the busbar, allow 50 mm upwards (cites:), 32 mm forwards (cites:), 10 mm downwards (cites:), and 10 mm at the side (cites:). Backwards clearance is 0 mm (cites:) — it sits flush against the busbar backplane. Operating temperature range is -20 to +60 °C (cites:); storage and transport range is -50 to +80 °C (cites:,). The temperature compensation is active across the full operating range (cites:).","metaTitle":"Siemens 3RA2220-1KD24-0BB4 Reversing Starter, S0, 12 A AC-3","metaDescription":"Siemens SIRIUS reversing starter, size S0, 12 A AC-3 at 400 V, Class 10, 24 V coil. Active production, quoted to order. Dimensions 260x90x165 mm.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"165 mm","Width":"90 mm","title":"3RA2220-1KD24-0BB4","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 9.00...12.5 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 230 V rated value":"2 hp","at 400 V rated value":"5 500 kW","at 480 V rated value":"11 A","at 600 V rated value":"10 A","Design Of The Product":"for 60 mm busbars","For Main Current Circuit":"screw-type terminals","Temperature Compensation":"-20 ... +60 °C","at 110/120 V rated value":"0.75 hp","at 200/208 V rated value":"3 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"7.5 hp","at 575/600 V rated value":"10 hp","Of The Supplied Contactor":"3RT2024-1BB40","Of The Supplied Link Module":"3RA2921-1BA00","Size Of The Circuit-Breaker":"S00","at AC-3 rated value maximum":"690 V","at AC-3 at 400 V rated value":"12 A","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2009","at AC-3e at 400 V rated value":"12 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":"3RA2923-1DB1","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2011-1KA10","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":"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":"3.4 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":"163 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":"9 ... 12.5 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a4d54859e2faf9c5a5c5141d93cc63d6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=514242&mlfb=3RA2220-1KD24-0BB4"},"ai":{"faq":[{"question":"Where can I buy 3RA2220-1KD24-0BB4 and how do I get a price?","answer":"Contact us with your BOM quantity for a current price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2220-1KD24-0BB4","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/3RA2220-1KD24-0BB4 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}}