{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2220-4CB27-0AP0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2220-4CB27-0AP0","canonicalUrl":"https://aoctrl.com/siemens/3RA2220-4CB27-0AP0","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2220-4CB27-0AP0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2220-4CB27-0AP0 reversing starter, Size S0, 22 A at 400 V AC-3, Trip Class 10, 690 V max, screw terminals, DIN rail mount.","salesMarkdown":"## What this reversing starter is — and what it handles The 3RA2220-4CB27-0AP0: This is a Siemens SIRIUS reversing starter, Size S0, meaning it's a pre-assembled combination of two contactors mechanically and electrically interlocked to reverse a three-phase motor without needing external interlocks or extra panel wiring. The reversing function is built in — the supplied contactor is a 3RT2027-1AP00, and the link module is a 3RA2921-1AA00, so the interlocking and main circuit connections are already taken care of. The maximum AC-3 voltage is 690 V, so it's rated for 400 V class systems with headroom for 480 V or 600 V applications. The horsepower equivalents at 460/480 V are 15 hp, and at 600 V it's also rated 22 A. ## Mounting and integration — DIN rail or screw, vertical only Mounts on a 35 mm DIN rail using an adapter for snap-on mounting, or directly with screws. The mounting position is vertical only — horizontal mounting isn't supported, so plan the panel layout accordingly. Fastening method is on adapter for screw and snap-on mounting on 35 mm DIN rail. Dimensions: 265 mm height, 90 mm width, 120 mm depth. The clearance requirements around the unit: 50 mm upwards, 32 mm forwards, 10 mm downwards, 10 mm at the side, and 0 mm backwards — so it can sit flush against the back panel. The Size S0 footprint matches the circuit-breaker size S0, so the feeder and starter share the same mounting profile. Main current circuit connections use screw-type terminals — standard for panel builders who prefer screw clamps over spring-cage. No special tooling needed beyond a screwdriver. ## Environmental limits and temperature compensation Operating temperature range is -20 to +60 °C, storage and transport range is -50 to +80 °C. The temperature compensation is active over the full operating range, so the overload trip curve stays accurate across the ambient temperature swing in an enclosure. No PROFIsafe or PROFINET IO protocol on this variant — it's a conventional hardwired reversing starter, not a fieldbus-controlled unit. If you need network integration, look at the SIRIUS 3RA6 or 3RA7 series with IO-Link or PROFINET. The supplied contactor (3RT2027-1AP00) and link module (3RA2921-1AA00) are standard SIRIUS components, so spares and replacements are widely available. The circuit-breaker size S0 matches the starter, simplifying coordination for the feeder protection.","metaTitle":"Siemens 3RA2220-4CB27-0AP0 SIRIUS Reversing Starter","metaDescription":"Siemens SIRIUS 3RA2220-4CB27-0AP0 reversing motor starter, 22 A at 400 V AC-3, Size S0, Trip Class 10, 690 V max, DIN rail mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"120 mm","Width":"90 mm","title":"3RA2220-4CB27-0AP0","Height":"265 mm","Upwards":"50 mm","Forwards":"32 mm","at 50 Hz":"0.25","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"10 mm","Rated Value":"690 V","description":"Load feeder fuseless, Reversing duty 400 V AC, Size S0 16...22 A 230 V AC 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":"3 hp","at 400 V rated value":"11 000 kW","at 480 V rated value":"22 A","at 50 Hz rated value":"230 ... 230 V","at 600 V rated value":"22 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":"1.5 hp","at 200/208 V rated value":"7.5 hp","at 220/230 V rated value":"7.5 hp","at 460/480 V rated value":"15 hp","Of The Supplied Contactor":"3RT2027-1AP00","Of The Supplied Link Module":"3RA2921-1AA00","Size Of The Circuit-Breaker":"S0","at AC-3 rated value maximum":"690 V","at AC-3 at 400 V rated value":"22 A","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2009","at AC-3e at 400 V rated value":"22 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":"3RV2021-4CA10","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":"9.8 W","Surge Voltage Resistance Rated Value":"6 kV","at AC in hot operating state per pole":"5.8 W","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","apparent holding power of magnet coil at AC":"9.8 VA","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":"AC","Of The Supplied Standard Mounting Rail Adapter":"3RA2922-1AA00","at 400 V according to IEC 60947-4-1 rated value":"150 000 A","Inductive Power Factor With The Holding Power Of The Coil":"0.25","Mechanical Service Life (Operating Cycles) Of Contactor Typical":"10 000 000","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"286 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":"16 ... 22 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7a3b69b8370202f0a67041dd5b7d060d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=16247&mlfb=3RA2220-4CB27-0AP0"},"ai":{"faq":[{"question":"What are the key ratings for 3RA2220-4CB27-0AP0?","answer":"AC-3 rated current is 22 A at 400 V, with a maximum AC-3 voltage of 690 V. Trip Class 10 overload protection. Horsepower equivalents: 15 hp at 460/480 V, 7.5 hp at 200/208 V and 220/230 V, 3 hp at 230 V, and 1.5 hp at 110/120 V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2220-4CB27-0AP0","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/3RA2220-4CB27-0AP0 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}}