{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1AR10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1AR10","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1AR10","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1AR10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S0, 3 NO main contacts, screw terminals, 12.5 A AC-4 at 400 V, 7.5 kW at 500 V/690 V, 45 mm width, DIN rail mount.","salesMarkdown":"It carries 3 normally-open main contacts and zero NC main contacts — a straight three-pole make configuration for three-phase loads. Across the line, it handles 7.5 kW at both 500 V and 690 V, giving it reach into 690 V industrial networks without derating the power rating. Screw-type terminals on the main circuit accept conductors up to 2x 10 mm² (or 1x 8 AWG), and the auxiliary circuit accepts 2x (0.5 to 4 mm²). ## Mounting and integration into a panel The 45 mm width per pole set is the standard S0 footprint; if you are swapping out an older S0 contactor, the 3RT1024-1AR10 drops into the same rail space. Depth of 91 mm and height of 85 mm mean it clears most standard enclosure depths. For Type 2 coordination (contactor remains usable after clearing the fault), the maximum fuse drops to 25 A gL/gG. This is the spec the panel designer needs to confirm the upstream protection device. The auxiliary contact ratings cover common control voltages: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V DC.","metaTitle":"Siemens 3RT1024-1AR10 SIRIUS Power Contactor, 3 NO, 12.5 A A","metaDescription":"Siemens 3RT1024-1AR10 SIRIUS power contactor, Size S0, 3 NO main contacts, 12.5 A AC-4 at 400 V, 7.5 kW at 500 V/690 V. Screw terminals, DIN rail mount. Current lifecycle. Sourced","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 60 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"60 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 500 V rated value":"7.5 kW","at 60 Hz rated value":"440 V","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":"7.5 V·A","Apparent pick-up power of magnet coil at AC":"69 V·A","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.76","Inductive power factor with the holding power of the coil":"0.28","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=519204&mlfb=3RT1024-1AR10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1AR10/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RT1024-1AR10?","answer":"The 3RT1023-1AL20 is a similar SIRIUS S0 contactor but with different coil voltage and auxiliary contact configuration — verify the coil rating and aux contact count before substituting. The 3RT1024-1AR10 drops into the same 45 mm DIN rail footprint as any S0 frame contactor."},{"question":"What are the key ratings of 3RT1024-1AR10?","answer":"The 3RT1024-1AR10 is rated 12.5 A AC-4 at 400 V for plugging/reversing duty, 5.5 kW AC-2 at 400 V, and 7.5 kW at both 500 V and 690 V. It has 3 NO main contacts, screw terminals, and a mechanical life of 10 million operations."},{"question":"Where can I buy 3RT1024-1AR10 and how is it quoted?","answer":"The 3RT1024-1AR10 is sourced and quoted to order against an RFQ through independent industrial automation distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will 3RT1024-1AR10 drop into a panel specified around 3RT1023-1AL20 without rewiring?","answer":"Both are Size S0 contactors with the same 45 mm width and DIN rail mounting, so the mechanical fit is identical. However, verify the coil voltage and auxiliary contact arrangement — the 3RT1024-1AR10 has 3 NO main contacts and specific aux contact ratings that may differ from the 3RT1023-1AL20."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1AR10","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/3RT1024-1AR10 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}}