{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2220-1KF24-0BB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2220-1KF24-0BB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2220-1KF24-0BB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2220-1KF24-0BB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing starter, 3RA2220-1KF24-0BB4, Size S0, 5.5 kW at 400 V AC-3, 11 A at 480 V, Class 10 thermal overload, 24 VDC coil, spring-loaded terminals, DIN rail mount.","salesMarkdown":"## Reversing starter in a Size S0 frame The Siemens 3RA2220-1KF24-0BB4 is a SIRIUS reversing starter — a pre-assembled combination of a reversing contactor pair, a thermal bimetallic overload relay, and a link module in a single Size S0 package. The control coil is rated 24 VDC. ## Mounting and wiring — DIN rail, spring terminals Mounts on a 35 mm standard DIN rail via the supplied adapter for screw or snap-on fastening. The mounting position is vertical. Dimensions: 90 mm wide, 269 mm tall, 130 mm deep. Clearance requirements: 50 mm upward, 32 mm forward, 10 mm at the sides and downward, zero backward. Main current circuit wiring uses spring-loaded terminals — no screw torque to verify, just strip and push. The supplied contactor is a 3RT2024-2BB40, the link module is 3RA2921-2AA00, and the reversing assembly kit is 3RA2923-1BB2. ## Environmental range and compliance Operates from -20 to +60 °C; storage and transport range is -50 to +80 °C. The overload relay includes temperature compensation across the operating range. RoHS compliance date is 03/01/2017.","metaTitle":"Siemens 3RA2220-1KF24-0BB4 SIRIUS Reversing Starter","metaDescription":"Siemens 3RA2220-1KF24-0BB4 SIRIUS reversing starter, 5.5 kW at 400 V AC-3, Size S0, Class 10, 24 VDC coil, spring terminals.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"130 mm","Width":"90 mm","title":"3RA2220-1KF24-0BB4","Height":"269 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 Spring-type terminal for installation on standard mounting rail with standard mounting rail adapter (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":"On adapter for screw and snap-on mounting on 35 mm standard mounting rail","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":"5 500 W","at 480 V rated value":"11 A","Design Of The Product":"for standard rail or screw mounting","For Main Current Circuit":"spring-loaded terminals","Temperature Compensation":"-20 ... +60 °C","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":"3RT2024-2BB40","Of The Supplied Link Module":"3RA2921-2AA00","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)","Design Of The Switching Contact":"electromechanical","Operating Frequency Rated Value":"50 ... 60 Hz","of the supplied RH assembly kit":"3RA2923-1BB2","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2021-1KA20","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 %","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":"11.5 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":"9 ... 12.5 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3200080691e7ea095546d85e4ef229c5.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=44960&mlfb=3RA2220-1KF24-0BB4"},"ai":{"faq":[{"question":"What is the rated power of 3RA2220-1KF24-0BB4 at 400 V?","answer":"At 480 V it is rated 11 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2220-1KF24-0BB4","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/3RA2220-1KF24-0BB4 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}}