{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-1AG64","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-1AG64","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-1AG64","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AG64","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1025-1AG64, 7.5 kW at 400 V AC-2, 15.5 A AC-4, screw-type terminals, 45 mm width, DIN rail mount.","salesMarkdown":"It's 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), so it handles the high inrush and frequent switching of reversing or jogging applications. The coil is wound for 100 V at 50 Hz or 100–110 V at 60 Hz, with an operating range of 0.8–1.1 times rated voltage at 50 Hz and 0.85–1.1 at 60 Hz — meaning it holds in through brownouts down to about 80 V at 50 Hz. Side-by-side mounting is permitted with no derating gap. Main and auxiliary circuits use screw-type terminals. Main contacts accept solid 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²), or stranded 2x (1–2.5 mm²), 2x (2.5–6 mm²), max 2x 10 mm². AWG equivalents: 2x (16–12), 2x (14–10), 1x 8 for main; 2x (20–16), 2x (18–14), 1x 12 for auxiliary. ## Protection and coordination This lets you balance protection level against fuse size depending on the upstream breaker and downstream motor thermal protection.","metaTitle":"Siemens 3RT1025-1AG64 SIRIUS Power Contactor, S0, 7.5 kW AC-","metaDescription":"Siemens SIRIUS 3RT1025-1AG64 power contactor, size S0. 7.5 kW at 400 V AC-2, 15.5 A AC-4. Screw terminals, DIN rail mount. Current lifecycle stage. Sourced 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","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 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":"100 V","at 500 V rated value":"10 kW","at 60 Hz rated value":"100 ... 110 V","at 690 V rated value":"11 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"7.5 kW","at AC-4 at 400 V rated value":"15.5 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":"7.5 V·A","apparent pick-up power of magnet coil at AC":"69 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":"0.76","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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","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=127886&mlfb=3RT1025-1AG64","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AG64/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to the 3RT1025-1AG64?","answer":"The 3RT1015-1AG61 is a smaller S0 frame contactor with lower ratings — it won't drop into the same panel without rewiring if your load requires the 7.5 kW AC-2 or 15.5 A AC-4 capacity of the 3RT1025-1AG64. The 3RT1025-1AG64 is the higher-rated sibling for heavier motor loads."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-1AG64","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/3RT1025-1AG64 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}}