{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2220-1FF24-0BB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2220-1FF24-0BB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2220-1FF24-0BB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2220-1FF24-0BB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2220-1FF24-0BB4 reversing starter, Size S0, 5 A AC-3 at 400 V, Class 10 trip, 24 VDC coil, spring-loaded terminals, DIN rail mount.","salesMarkdown":"## 5 A AC-3 reversing starter — what the rating means in the panel The 3RA2220-1FF24-0BB4: The 24 VDC coil keeps the control circuit isolated from the power side; the supplied contactor (3RT2024-2BB40) and link module (3RA2921-2AA00) are pre-assembled, so the reversing starter arrives as a single unit ready to wire. ## Mounting and wiring — DIN rail footprint with spring terminals Mounts on 35 mm DIN rail via an adapter that accepts both screw and snap-on fastening; the mounting position is vertical. Dimensions are 130 mm deep by 90 mm wide by 269 mm high. Clearance requirements: 50 mm upward, 32 mm forward, 10 mm downward, and 10 mm at the side — budget these into the panel layout for airflow and wiring access.","metaTitle":"Siemens 3RA2220-1FF24-0BB4 SIRIUS Reversing Starter","metaDescription":"Siemens 3RA2220-1FF24-0BB4 SIRIUS reversing starter, 5 A at 400 V AC-3, Size S0, Class 10. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"130 mm","Width":"90 mm","title":"3RA2220-1FF24-0BB4","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 3.50...5.00 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 DIN 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 230 V rated value":"0.5 hp","at 400 V rated value":"1 500 kW","at 480 V rated value":"5 A","at 600 V rated value":"5 A","Design Of The Product":"for standard rail or screw mounting","For Main Current Circuit":"spring-loaded terminals","Temperature Compensation":"-20 ... +60 °C","at 110/120 V rated value":"0.25 hp","at 200/208 V rated value":"1.5 hp","at 220/230 V rated value":"1.5 hp","at 460/480 V rated value":"3 hp","at 575/600 V rated value":"5 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","at AC-3 at 400 V rated value":"5 A","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"03/01/2017","at AC-3e at 400 V rated value":"5 A","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":"3RV2021-1FA20","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":"2.7 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","Of The Supplied Standard Mounting Rail Adapter":"3RA2922-1AA00","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":"65 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":"3.5 ... 5 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c1a90ded4c3926d4fa54c135db630775.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=211721&mlfb=3RA2220-1FF24-0BB4"},"ai":{"faq":[{"question":"What motor power can this reversing starter handle at 400 V?","answer":"At 400 V AC-3, the rated current is 5 A. This corresponds to approximately 1.5 kW (2 hp) for a standard three-phase induction motor — the actual power depends on motor efficiency and full-load amps."},{"question":"What is the trip class and what does it mean for motor protection?","answer":"This is the standard class for general-purpose motor starting — it allows the inrush during acceleration without nuisance tripping while still protecting against locked-rotor conditions."},{"question":"Does this reversing starter include the contactor and link module?","answer":"Yes, it ships with the 3RT2024-2BB40 contactor and the 3RA2921-2AA00 link module pre-assembled as a single reversing starter unit."},{"question":"What clearance is needed around the unit in the panel?","answer":"Allow 50 mm upward, 32 mm forward, 10 mm downward, and 10 mm at each side for proper ventilation and wiring access."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2220-1FF24-0BB4","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/3RA2220-1FF24-0BB4 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}}