{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1AL00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1AL00","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1AL00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1AL00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, S0 frame, 3 NO main contacts, screw terminals, 7.5 kW at 500 V / 690 V AC-3, 45 mm width, DIN rail mount, IP20 front.","salesMarkdown":"## SIRIUS S0 power contactor — 3 NO, 7.5 kW, screw terminals The Siemens 3RT1024-1AL00 is a SIRIUS S0-frame power contactor with three normally-open main contacts, rated for motor switching at 7.5 kW on both 500 V and 690 V AC-3 duty. That 7.5 kW at 690 V means it handles a 3-phase induction motor pulling about 9 A per phase at that voltage — common for European 690 V distribution in heavy industrial plants. Screw-type terminals on the main circuit accept 2x (1 to 2.5 mm²) solid or stranded, with a max of 2x 10 mm² — enough for the motor leads on a 7.5 kW load. Control circuit terminals take 2x (0.5 to 1.5 mm²) solid, 2x (0.75 to 2.5 mm²) stranded. If your application does frequent reversing or jogging, that 12.5 A figure governs contact life, not the AC-3 motor rating. For type 2 coordination (no weld under fault), Siemens specifies a 25 A gL/gG fuse upstream. Type 1 coordination (welding allowed but no fire hazard) takes a 63 A fuse. That tells you the short-circuit withstand capability: the contactor can clear a fault up to the fuse's interrupting rating without catastrophic failure. The auxiliary contact ratings cover a range of control voltages: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 0.3 A at 220 V DC. The DC switching capability drops fast with voltage — at 220 V DC it's only 0.3 A, so verify your DC control circuit load against the curve.","metaTitle":"Siemens 3RT1024-1AL00 SIRIUS Power Contactor, 3 NO, 7.5 kW","metaDescription":"Siemens SIRIUS 3RT1024-1AL00 power contactor, S0 frame, 3 NO main contacts, rated 7.5 kW at 500 V and 690 V AC-3. Screw terminals, DIN rail mount, IP20 front. Active lifecycle. Quo","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"91 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","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 Hz","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Size of contactor":"S0","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":"125 V","at 500 V rated value":"7.5 kW","at 690 V rated value":"7.5 kW","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"12.5 A","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","at AWG conductors for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","With Type Of Coordination 1 Required":"fuse gL/gG: 63 A","Reference code acc. to DIN EN 81346-2":"Q","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","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"40 A","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","Inductive power factor with closing power of the coil":"0.82","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","Of The Contactor With Added Electronics-Compatible 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=216996&mlfb=3RT1024-1AL00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1AL00/alternatives.json"},"ai":{"faq":[{"question":"Will 3RT1024-1AL00 drop into a panel specified for 3RT1023-1AL20 without rewiring?","answer":"Both are S0-frame SIRIUS contactors with the same 45 mm width and DIN-rail mounting pattern, so the mechanical fit is identical. The 3RT1024-1AL00 has 3 NO main contacts versus the 3RT1023-1AL20's configuration — verify your auxiliary contact count and coil voltage before swapping, but the footprint and terminal layout are the same family."},{"question":"What is 3RT1024-1AL00's depth?","answer":"The depth is 91 mm, with a width of 45 mm and height of 85 mm — standard S0 frame dimensions."},{"question":"What wire sizes does the screw terminal accept?","answer":"Main circuit terminals accept 2x (1 to 2.5 mm²) solid or 2x (2.5 to 6 mm²) stranded, max 2x 10 mm². Control circuit terminals accept 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded, max 2x 4 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1AL00","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/3RT1024-1AL00 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}}