{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2220-1JB24-0BB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2220-1JB24-0BB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2220-1JB24-0BB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2220-1JB24-0BB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2220-1JB24-0BB4 reversing starter, Size S0, 10 A at 400 V AC-3, Class 10, 24 V DC coil, screw terminals, DIN rail mount.","salesMarkdown":"## What this reversing starter packs The Siemens 3RA2220-1JB24-0BB4 is a SIRIUS reversing starter in Size S0 — a factory-assembled pair of contactors with mechanical and electrical interlock, plus a link module, all on a common adapter plate. The supplied contactor is a 3RT2024-1BB40 and the link module is a 3RA2921-1BA00 — both are matched at the factory so the interlock timing and bus connections are correct out of the box. No separate wiring between the forward and reverse contactor is needed; the link module carries the power circuit crossover. ## Mounting and panel fit Mounts on a 35 mm DIN rail via the included adapter for screw and snap-on fastening, or can be screw-mounted directly to a backplate. The vertical mounting position is specified, and the clearance requirements are: 50 mm upwards, 32 mm forwards, 10 mm downwards, and 10 mm at the side — backwards clearance is zero, so the back of the unit can sit flush against the panel wall. The enclosure dimensions are 130 mm deep by 90 mm wide by 265 mm high. The main circuit uses screw-type terminals, so expect to torque the power wires to the contactor ratings. ## Trip class and thermal limits This covers most pump, fan, and conveyor applications. The operating temperature range is -20 to +60 °C, with storage and transport limits of -50 to +80 °C. The coil is rated at 24 V DC, and the unit is designed for AC-3 switching up to 690 V maximum.","metaTitle":"Siemens 3RA2220-1JB24-0BB4 Reversing Starter, S0, 10 A AC-3","metaDescription":"Siemens SIRIUS 3RA2220-1JB24-0BB4 reversing starter, S0 size, 10 A at 400 V AC-3, Class 10, 24 V coil. 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":"3RA2220-1JB24-0BB4","Height":"265 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 7.00...10.0 A 24 V DC screw 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":"1.5 hp","at 400 V rated value":"4 000 kW","at 480 V rated value":"10 A","at 600 V rated value":"10 A","Design Of The Product":"for standard rail or screw mounting","For Main Current Circuit":"screw-type terminals","Temperature Compensation":"-20 ... +60 °C","at 110/120 V rated value":"0.5 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":"10 A","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2009","at AC-3e at 400 V rated value":"10 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":"3RA2923-1BB1","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2011-1JA10","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","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":"130 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":"7 ... 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6b6b5596a4a1fb00d16d3202199722e8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=249586&mlfb=3RA2220-1JB24-0BB4"},"ai":{"faq":[{"question":"What is the AC-3 rating of this reversing starter?","answer":"10 A at 400 V AC-3, with a maximum switching voltage of 690 V AC-3. This is the motor-switching rating — the contactor pair is designed for reversing duty, not just resistive loads."},{"question":"What contactor and link module are supplied inside?","answer":"The reversing starter ships with a 3RT2024-1BB40 contactor and a 3RA2921-1BA00 link module. These are factory-matched, so the interlock timing and bus bars are pre-aligned."},{"question":"What clearance is needed around this unit in the panel?","answer":"50 mm above, 32 mm in front, 10 mm below, and 10 mm to the side. The back can sit flush — zero clearance required behind the unit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2220-1JB24-0BB4","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/3RA2220-1JB24-0BB4 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}}