{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2220-1FB24-0AK6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2220-1FB24-0AK6","canonicalUrl":"https://aoctrl.com/siemens/3RA2220-1FB24-0AK6","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2220-1FB24-0AK6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2220-1FB24-0AK6 reversing starter, size S0, AC-3 3.6 A at 690 V, Class 10, 3 hp at 480 V, 50-60 Hz, screw terminals, DIN rail mount.","salesMarkdown":"## What the 3.6 A AC-3 rating means for your motor load The 3RA2220-1FB24-0AK6: This current rating governs the full-voltage starting of squirrel-cage motors — the contactor set inside (3RT2024-1AK60) is sized for this switching class, not for resistive or lightly inductive loads. For a 3 hp motor at 480 V (the nameplate rating this unit supports), that translates to a locked-rotor protection curve that clears before the motor insulation reaches its thermal limit. ## Panel fit and mounting constraints This reversing starter occupies a size S0 footprint: 90 mm wide, 120 mm deep, 265 mm tall. It mounts vertically on a 35 mm DIN rail via an adapter that also accepts screw fixing — no special bracket needed for standard enclosures. Clearance requirements are tight: 50 mm upwards, 32 mm forwards, 10 mm downwards, and 10 mm at the side. Backwards clearance is zero — the unit sits flush against the mounting surface. ## Lifecycle and sourcing posture The supplied link module (3RA2921-1AA00) and RH assembly kit (3RA2923-1BB1) are integral to the reversing function — they are not sold separately as a field retrofit. If you need a replacement for an existing installation, the complete starter is the ordering unit. ## Compliance and documentation REACH compliance is standard for Siemens SIRIUS components. The operating temperature range is -20 to +60 °C; storage and transport range is -50 to +80 °C.","metaTitle":"Siemens 3RA2220-1FB24-0AK6 Reversing Starter, S0, 3.6 A AC-3","metaDescription":"Siemens SIRIUS 3RA2220-1FB24-0AK6 reversing starter, size S0, 3.6 A AC-3 at 690 V, Class 10, 3 hp at 480 V. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"120 mm","Width":"90 mm","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":"690 V","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","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Product Designation":"Reversing starter","Size Of Load Feeder":"S0","at 400 V rated value":"1 500 W","at 480 V rated value":"4.8 A","at 50 Hz rated value":"88 ... 121 V","at 60 Hz rated value":"96 ... 132 V","Design Of The Product":"for standard rail or screw mounting","For Main Current Circuit":"screw-type terminals","at 200/208 V rated value":"1 hp","at 220/230 V rated value":"1 hp","at 460/480 V rated value":"3 hp","at 575/600 V rated value":"3 hp","Of The Supplied Contactor":"3RT2024-1AK60","Of The Supplied Link Module":"3RA2921-1AA00","Size Of The Circuit-Breaker":"S00","at AC-3 rated value maximum":"690 V","at AC-3 at 400 V rated value":"3.6 A","Substance Prohibitance (Date)":"10/01/2009","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":"3RV2011-1FA10","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","apparent holding power of magnet coil at AC":"8.5 VA","with high demand rate according to SN 31920":"73 %","shock resistance according to IEC 60068-2-27":"6g / 11 ms","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","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7207d864936c2e29cc4f5f32214a8d99.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=530923&mlfb=3RA2220-1FB24-0AK6","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA2220-1FB24-0AK6/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2220-1FB24-0AK6","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/3RA2220-1FB24-0AK6 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}}