{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-1AK64-3MA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-1AK64-3MA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-1AK64-3MA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AK64-3MA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, S0 frame, 7.5 kW at 400 V AC-2, 15.5 A at 400 V AC-4, screw-type terminals, 45 mm width, active production.","salesMarkdown":"The contactor is rated for 7.5 kW at 400 V in AC-2 duty (slip-ring motor starting) and 15.5 A at 400 V in AC-4 duty (plugging/inching). At 690 V it handles 11 kW, and it carries a mechanical life of 10 million typical cycles. The AC-2 rating at 7.5 kW tells you this contactor is sized for slip-ring motor loads where the starting current is moderate — think crusher conveyors or mill drives that need controlled acceleration. The AC-4 rating at 15.5 A covers the severe inching and plugging duty that chews up a standard contactor quickly; this one is built to take that cycling. The S0 frame is 45 mm wide and 85 mm tall, with a depth of 140 mm including terminals. For Type 1 coordination (contactor may need replacement after a fault) use 63 A gL/gG fuses. The solid and stranded wire ranges are given for both the main and auxiliary circuits — 2x (0.5 to 1.5 mm²) solid, 2x (0.75 to 2.5 mm²) solid, and up to 2x 4 mm² solid on the auxiliary side; the main circuit accepts 2x (1 to 2.5 mm²) single/multi-stranded, 2x (2.5 to 6 mm²), and max 2x 10 mm². AWG equivalents are also listed.","metaTitle":"Siemens 3RT1025-1AK64-3MA0 SIRIUS Power Contactor, S0, 7.5 k","metaDescription":"Siemens SIRIUS 3RT1025-1AK64-3MA0 power contactor, S0 frame, 7.5 kW at 400 V AC-2, 15.5 A AC-4, screw terminals, DIN rail mount. Active production. Quoted to order.","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","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 Hz","2 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 50 Hz rated value":"110 V","at 500 V rated value":"10 kW","at 60 Hz rated value":"120 V","at 690 V rated value":"11 kW","Instantaneous Contact":"2","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":"7.5 kW","at AC-4 at 400 V rated value":"15.5 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=212180&mlfb=3RT1025-1AK64-3MA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AK64-3MA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3RT1025-1AK64-3MA0?","answer":"The contactor is rated 7.5 kW at 400 V AC-2, 15.5 A at 400 V AC-4, and 11 kW at 690 V. It operates in -25 to +60 °C and carries a mechanical life of 10 million cycles."},{"question":"Where can I buy 3RT1025-1AK64-3MA0?","answer":"This active-production part is sourced and quoted to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is the depth of 3RT1025-1AK64-3MA0?","answer":"The depth is listed at 140 mm, which includes the screw-type terminals on the front."},{"question":"Does 3RT1025-1AK64-3MA0 drop into a panel wired for 3RT1023-1AL20?","answer":"Both are SIRIUS S0-frame contactors with the same 45 mm width and DIN rail mount, so the footprint is identical. Terminal assignment and coil voltage differ — verify the coil rating on the nameplate before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-1AK64-3MA0","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/3RT1025-1AK64-3MA0 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}}