{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2120-1CA23-0AP6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2120-1CA23-0AP6","canonicalUrl":"https://aoctrl.com/siemens/3RA2120-1CA23-0AP6","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2120-1CA23-0AP6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2120-1CA23-0AP6 non-fused motor starter, direct starter design, Size S0 load feeder, Trip Class 10, 750 W at 400 V, snap-mounted to DIN rail.","salesMarkdown":"The Siemens SIRIUS 3RA2120-1CA23-0AP6 is a non-fused motor starter, a direct starter design combining a contactor and thermal overload relay in a single Size S0 package. It is rated for 750 W at 400 V and carries a Trip Class 10 thermal bimetallic overload release, meaning it trips within 10 seconds at 7.2× the set current — fast enough to protect standard induction motors during a locked-rotor event without nuisance tripping during normal start. This unit ships with the 3RT2023-1AP60 contactor and the 3RA2921-1AA00 link module pre-assembled. The circuit-breaker side is sized S00, matching the S0 feeder frame. Snap it onto a DIN rail or screw-mount it with the additional push-in lug — the vertical mounting position is specified. The coil accepts 176 to 242 V at 50 Hz or 192 to 264 V at 60 Hz. Main terminals accept stranded wire from 1 to 10 mm², or two conductors of 2.5 to 6 mm² each. No backwards clearance is needed. The depth of 97.1 mm and height of 193.1 mm determine enclosure depth and door cutout.","metaTitle":"Siemens 3RA2120-1CA23-0AP6 SIRIUS Non-Fused Motor Starter","metaDescription":"Siemens SIRIUS 3RA2120-1CA23-0AP6 non-fused motor starter, direct starter, Size S0, Trip Class 10, 750 W at 400 V. Current lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"97.1 mm","Width":"45 mm","Height":"193.1 mm","Upwards":"30 mm","Forwards":"10 mm","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"9 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Snap-mounted to DIN rail or screw-mounted with additional push-in lug","Mounting Position":"vertical","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Degree Of Pollution":"3","Product Designation":"non-fused motor starter 3RA2","Size Of Load Feeder":"S0","at 230 V rated value":"0.17 hp","at 400 V rated value":"750 W","at 480 V rated value":"2.15 A","at 50 Hz rated value":"176 ... 242 V","at 500 V rated value":"1 100 W","at 60 Hz rated value":"192 ... 264 V","at 600 V rated value":"2.24 A","Design Of The Product":"direct starter","at 200/208 V rated value":"0.5 hp","at 220/230 V rated value":"0.5 hp","at 460/480 V rated value":"1 hp","at 575/600 V rated value":"1.5 hp","Of The Supplied Contactor":"3RT2023-1AP60","For Main Contacts Stranded":"1 ... 10 mm², 2x (2.5 ... 6 mm²)","Of The Supplied Link Module":"3RA2921-1AA00","Size Of The Circuit-Breaker":"S00","at AC-3 rated value maximum":"690 V","Design Of The Overload Release":"thermal (bimetallic)","Design Of The Switching Contact":"electromechanical","Operating Frequency Rated Value":"50 ... 60 Hz","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2011-1CA10","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":"7.2 VA","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"6g / 11 ms","at 400 V according to IEC 60947-4-1 rated value":"153 000 A","operational current at AC-3 at 400 V rated value":"1.9 A","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Inductive Power Factor With The Holding Power Of The Coil":"0.28","Mechanical Service Life (Switching Cycles) Of Contactor Typical":"10 000 000","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"32.5 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":"1.8 ... 2.5 A","Connectable Conductor Cross-Section For Main Contacts Finely Stranded With Core End Processing":"1 ... 6 mm²"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e5a87977cdf0eff3f0185d7713e8fcfb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=451712&mlfb=3RA2120-1CA23-0AP6","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA2120-1CA23-0AP6/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2120-1CA23-0AP6","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/3RA2120-1CA23-0AP6 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}}