{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-1AU60","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-1AU60","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-1AU60","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AU60","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S0, 3-pole NO, 15.5 A AC-4 at 400 V, 7.5 kW AC-2, screw terminals, DIN rail snap-on, IP20 front.","salesMarkdown":"At 690 V it's rated 11 kW, so it covers 690 V line-fed motors up to that power. The contactor snaps onto a 35 mm DIN rail per DIN EN 50022, and the screw-type terminals on the main circuit accept up to 2x 10 mm² or 1x 8 AWG stranded. Front side is IP20, so it's protected against finger contact in the panel; the terminals themselves are IP00, meaning they're live when the panel door is open. The 91 mm depth and 45 mm width mean it fits standard S0 slot spacing on a DIN rail; side-by-side mounting is allowed with no derating down to 6 mm spacing between units. ## Coordination and protection — what the fuse ratings tell you That's the difference between protecting the contactor itself versus just clearing the fault. In a panel where you want to avoid pulling the contactor after a short, spec the 25 A fuse. The S0 frame width of 45 mm and depth of 91 mm fit standard enclosure layouts.","metaTitle":"Siemens 3RT1025-1AU60 SIRIUS Power Contactor, Size S0, 3-Pol","metaDescription":"Siemens 3RT1025-1AU60 SIRIUS power contactor, Size S0, 3 NO main contacts, 15.5 A AC-4 at 400 V, 7.5 kW AC-2, 11 kW at 690 V. Screw terminals, DIN rail snap-on. Current production.","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":"10 kW","at 60 Hz rated value":"277 V","at 690 V rated value":"11 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":"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=364458&mlfb=3RT1025-1AU60","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AU60/alternatives.json"},"ai":{"faq":[{"question":"Will 3RT1025-1AU60 drop into a panel specified around 3RT1023-1AL20?","answer":"Both are Size S0 frame contactors with the same 45 mm width and DIN rail mounting, so the mechanical footprint is the same. The main difference is the coil voltage and switching ratings — verify the coil voltage matches your control circuit and that the AC-4/AC-2 current ratings cover your motor load before swapping."},{"question":"What compliance documentation does Siemens provide for 3RT1025-1AU60?","answer":"As a standard SIRIUS catalog item, it carries CE marking for the European market and is designed to meet IEC/EN 60947-4-1. RoHS and REACH declarations are available from Siemens documentation. UL/CSA listings are typical for the SIRIUS line but should be confirmed against the specific variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-1AU60","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/3RT1025-1AU60 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}}