{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-3AG14","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-3AG14","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-3AG14","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3AG14","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1025-3AG14 power contactor, size S0, screw-type terminals, 45 mm width, rated for 11 kW at 690 V AC-3.","salesMarkdown":"The 3RT1025-3AG14: Rated for both 50 Hz and 60 Hz operation, its core motor ratings are 10 kW at 500 V and 11 kW at 690 V in AC-3 duty, so it handles standard European 400 V and 690 V motor circuits. Auxiliary contact block provides 2 instantaneous contacts, rated 10 A at 24 V, 6 A at 230 V, and 0.3 A at 220 V DC — sufficient for PLC-level control signals or relay interlocking. The main circuit uses screw-type terminals accepting 2x (0.25...2.5 mm²) solid or 2x (1...2.5 mm²) stranded, up to 2x 10 mm² max. The S0 frame measures 45 mm wide, 85 mm tall, and 140 mm deep, so it occupies a single 45 mm slot on the DIN rail. Side-by-side mounting is permitted with zero clearance on the front side (IP20 finger-safe on front), but requires 6 mm spacing at the side for heat dissipation when mounted in a row. The bottom terminal area is IP00 — keep live parts guarded in the enclosure. Short-circuit coordination is specified for both Type 1 and Type 2: Type 2 requires a gL/gG fuse rated 25 A, Type 1 allows up to 63 A. This matters when designing selectivity with upstream protection in motor control centers. For high-cycle applications (conveyors, pumps cycling more than once per minute), factor in electrical endurance derating per the load current curve — AC-3 life will be lower than the mechanical figure.","metaTitle":"Siemens 3RT1025-3AG14 SIRIUS Power Contactor, S0 Frame, 11 k","metaDescription":"Siemens 3RT1025-3AG14 SIRIUS power contactor, size S0. 11 kW at 690 V AC-3. Screw terminals, 45 mm wide. In current production. Rated for 50/60 Hz.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"140 mm","Solid":"2x (0.25 ... 2.5 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","2 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":"100 V","at 500 V rated value":"10 kW","at 60 Hz rated value":"110 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 (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded 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","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","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=361799&mlfb=3RT1025-3AG14","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3AG14/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source or replacement?","answer":"The 3RT1017-1AP01 is the closest peer in the same S0 frame size. Both share the same DIN-rail footprint and screw-terminal main circuit. However, verify coil voltage and auxiliary contact configuration — the 3RT1025-3AG14 carries different ratings and may not be a drop-in without checking the control circuit."},{"question":"What are the key motor power ratings for this contactor?","answer":"In AC-3 duty (squirrel-cage motors), it is rated 10 kW at 500 V and 11 kW at 690 V. For AC-2 (slip-ring motors), it delivers 7.5 kW at 400 V. The AC-4 rating for inching/plugging is 15.5 A at 400 V."},{"question":"What is the physical size and mounting method?","answer":"The S0 frame measures 45 mm wide, 85 mm tall, and 140 mm deep. It mounts via screw or snap-on onto a 35 mm DIN rail per EN 50022. Side-by-side mounting is permitted with 6 mm side clearance for heat dissipation."},{"question":"What compliance documentation is available?","answer":"The product carries a reference code per DIN EN 81346-2 (Q for power switching). Standard SIRIUS documentation includes RoHS and REACH compliance declarations, along with IEC/EN 60947-4-1 certification for the contactor series. Specific UL/CSA file numbers are available upon request through the manufacturer's technical documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-3AG14","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/3RT1025-3AG14 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}}