{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1AP04-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1AP04-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1AP04-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1AP04-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1024-1AP04-1AA0, size S0 power contactor, 3 NO main contacts, screw-type terminals, 12.5 A AC-4 at 400 V, 5.5 kW AC-2 at 400 V, IP20 front, 45 mm width, 140 mm depth.","salesMarkdown":"It's rated for AC-4 switching duty at 12.5 A at 400 V — that's the category for reversing or inching motor starts where the contactor makes and breaks stalled-rotor current, so the contacts take a harder hit than a standard AC-3 run contactor. ## Sizing and Coordination For Type 2 coordination (contactor remains fully operational after a short, no contact welding), the fuse drops to gL/gG 25 A. That's the spec to hand your panel builder when they're sizing the branch circuit protection. That's the mechanism itself — electrical life will be lower and depends on the switching category and load current. For a contactor that's seeing frequent inching or reversing (AC-4), expect the electrical endurance to be a fraction of that mechanical figure. Main circuit screw terminals accept 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or max 2x 10 mm² solid/stranded, with AWG equivalents of 2x (16 to 12), 2x (14 to 10), or 1x 8. Auxiliary control circuit terminals take 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²), with AWG 2x (20 to 16), 2x (18 to 14), or 1x 12. That covers most panel wire gauges you'd run to a contactor coil and aux contacts.","metaTitle":"Siemens 3RT1024-1AP04-1AA0 SIRIUS Power Contactor, S0, 3NO,","metaDescription":"Siemens SIRIUS 3RT1024-1AP04-1AA0 power contactor, size S0, 3 NO main contacts, 12.5 A AC-4 at 400 V, 5.5 kW AC-2 at 400 V, screw terminals, IP20 front, 45 mm wide, current product","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"140 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"85 mm","at 50 Hz":"0.8 ... 1.1","On The Front":"IP20","1 Rated Value":"50 Hz","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Size Of Contactor":"S0","Solid Or Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"230 V","at 500 V rated value":"7.5 kW","at 690 V rated value":"7.5 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"12.5 A","Substance Prohibitance (Date)":"01.07.2006 00:00:00","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","reference code acc. to IEC 81346-2":"Q","With Type Of Coordination 1 Required":"fuse gL/gG: 63 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","apparent holding power of magnet coil at AC":"7.8 V·A","apparent pick-up power of magnet coil at AC":"61 V·A","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","Inductive Power Factor With Closing Power Of The Coil":"0.82","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.24","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"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=42200&mlfb=3RT1024-1AP04-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1AP04-1AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT1024-1AP04-1AA0?","answer":"Submit an RFQ through this listing. The part is sourced to order through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is 3RT1024-1AP04-1AA0's listed depth?","answer":"The depth is 140 mm, with a width of 45 mm and height of 85 mm."},{"question":"Will 3RT1024-1AP04-1AA0 drop into a panel specified around 3RT1026-1AB00 without rewiring?","answer":"Both are size S0 frame contactors with the same 45 mm width and DIN-rail mounting, so the footprint is the same. But the 3RT1026-1AB00 is a higher-current variant — verify your load rating before swapping down. Terminal layout and screw-type connections are consistent across the S0 frame."},{"question":"What compliance documentation does Siemens provide for 3RT1024-1AP04-1AA0?","answer":"The part carries a substance prohibition date of July 1, 2006, aligning with RoHS compliance. The reference code per IEC 81346-2 is Q. Standard Siemens declarations of conformity for IEC/EN 60947 series apply."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1AP04-1AA0","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/3RT1024-1AP04-1AA0 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}}