{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA1120-1ED24-0AP0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA1120-1ED24-0AP0","canonicalUrl":"https://aoctrl.com/siemens/3RA1120-1ED24-0AP0","factsUrl":"https://aoctrl.com/api/mcp/products/3RA1120-1ED24-0AP0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA1120-1ED24-0AP0 non-fused load feeder, size S0, direct starter design, 1.5 kW at 400 V, with bimetal motor protection, IP20 front.","salesMarkdown":"## What this SIRIUS load feeder is The Siemens 3RA1120-1ED24-0AP0 is a SIRIUS non-fused load feeder in size S0, built as a direct starter with bimetal motor protection. It ships as a pre-assembled unit containing the supplied contactor 3RT1024-1AP00, link module 3RA1921-1AA00, circuit-breaker 3RV1021-1EA10, and busbar adapter 8US1251-5DM07 — all matched for 60 mm busbar center-to-center spacing. Rated at 1.5 kW at 400 V with an insulation voltage of 690 V, this feeder is sized for motor loads up to that power on a 400 V three-phase line. The IP20 front protection keeps fingers out of the live terminals inside the panel — standard for enclosed switchgear. Fastens by snapping onto 60 mm busbar systems — the busbar adapter is included. Solid or stranded wire from 1 to 6 mm² for the main circuit; dual-wire capability supports 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²). AWG equivalents for main contacts are 2x (14 to 10). Clearance requirements: 30 mm upwards, 10 mm forwards, 9 mm backwards, 0 mm downwards, 30 mm at the side — plan your enclosure depth at 148 mm plus the forward clearance. Shock resistance rated at 12.5g. Lifecycle status is current production. The 3RA1120-1ED24-0AP0 remains an active catalog item from Siemens, not subject to phase-out or last-time-buy as of the latest manufacturer data.","metaTitle":"Siemens 3RA1120-1ED24-0AP0 SIRIUS non-fused load feeder","metaDescription":"Siemens 3RA1120-1ED24-0AP0 SIRIUS direct starter, size S0, 1.5 kW at 400 V, bimetal motor protection, IP20 front. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"148 mm","Solid":"1 ... 6 mm², 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Width":"45 mm","Height":"183 mm","Upwards":"30 mm","Forwards":"10 mm","Stranded":"1 ... 6 mm²","Backwards":"9 mm","Downwards":"0 mm","At The Side":"30 mm","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +70 °C","Fastening Method":"for snapping onto 60 mm busbar systems","Shock Resistance":"12.5g","Mounting Position":"with vertical mounting surface +/-90° rotatable, with vertical mounting surface +/- 22.5° tiltable to the front and back","PROFINET protocol":"No","Solid Or Stranded":"1 ... 6 mm²","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Degree Of Pollution":"3","Product Designation":"non-fused load feeder","Size Of Load Feeder":"S0","PROFIBUS DP protocol":"No","at 400 V rated value":"1.5 kW","at 50 Hz rated value":"230 V","Design Of The Product":"direct starter","Number Of Digital Inputs":"0","Of The Supplied Contactor":"3RT1024-1AP00","NO-Load Switching Frequency":"15 1/s","Of The Supplied Link Module":"3RA1921-1AA00","Type Of The Motor Protection":"bimetal","Substance Prohibitance (Date)":"05/01/2012","Insulation Voltage Rated Value":"690 V","Of The Supplied Busbar Adapter":"8US1251-5DM07","Busbar Center-To-Center Spacing":"60 mm","Design Of The Switching Contact":"electromechanical","at AWG cables for main contacts":"2x (14 ... 10)","Of The Supplied Circuit-Breakers":"3RV1021-1EA10","protection class IP on the front":"IP20","Design Of Short-Circuit Protection":"circuit-breakers","Product Extension Auxiliary Switch":"Yes","Product Function Bus Communication":"No","Surge Voltage Resistance Rated Value":"6 kV","With Side-By-Side Mounting At The Side":"0 mm","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"1 ... 6 mm²","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","protocol is supported AS-Interface protocol":"No","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","Type Of Voltage Of The Control Supply Voltage":"AC","operating voltage at AC-3 rated value maximum":"400 V","Control Supply Voltage Frequency 1 Rated Value":"50 Hz","operational current at AC-3 at 400 V rated value":"3.6 A","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Mechanical Service Life (Switching Cycles) Of Contactor Typical":"10 000 000","AWG number as coded connectable conductor cross section for main contacts":"14 ... 10","breaking capacity maximum short-circuit current (Icu) at 400 V rated value":"50 kA","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"2.8 ... 4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=171497&mlfb=3RA1120-1ED24-0AP0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA1120-1ED24-0AP0/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between 3RA1120 and the SIRIUS 3RA2?","answer":"The 3RA1120 is a size S0 direct starter with bimetal protection, while the 3RA2 series typically uses electronic overloads and may include IO-Link communication. The 3RA1120-1ED24-0AP0 is a simpler, electromechanical design without PROFINET or PROFIBUS protocol support."},{"question":"Where can I buy 3RA1120-1ED24-0AP0 available via RFQ confirmation?","answer":"This part is sourced to order; availability and pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA1120-1ED24-0AP0","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/3RA1120-1ED24-0AP0 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}}