{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-3EG24-0KS0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-3EG24-0KS0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-3EG24-0KS0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3EG24-0KS0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1025-3EG24-0KS0-ZX95, screw-type terminals, 11 kW at 690 V, with RC surge suppressor, 45 mm width.","salesMarkdown":"The headline motor rating is 11 kW at 690 V, with a 7.5 kW rating at 400 V AC-2 duty. The contactor carries an integral RC surge suppressor across the coil, which reduces EMI on the control wiring — useful when the coil shares a 24 VDC supply with PLC outputs or sensors. At 45 mm wide, 88 mm tall, and 140 mm deep, the S0 frame fits a standard 8-module DIN-rail pitch. Main circuit terminals are screw-type, accepting solid conductors from 2x (0.25 to 2.5 mm²) up to 2x 10 mm² stranded. AWG equivalents run from 2x 16–12 up to 1x 8. The front face is rated IP20 — finger-safe once wired; the terminal area itself is IP00, so live parts are exposed until the enclosure cover is on. ## Environmental limits and lifecycle Mechanical endurance is typical at 10 million operations — that is the no-load switching life. Electrical life will be shorter and depends on the switched current and duty cycle; for a tire-curing press cycling once per cure, the mechanical life alone covers years of shifts. ## Coil and auxiliary contact ratings The coil operates on 50/60 Hz control voltage, with a rated value of 110 V at both frequencies. The operating range is 0.8 to 1.1 times rated at 50 Hz, and 0.85 to 1.1 at 60 Hz — so the coil pulls in reliably down to about 88 V at 50 Hz. The contactor carries 2 instantaneous auxiliary contacts. Their switching capacity varies with voltage: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V DC. For DC switching, the lower current limit reflects arc extinction limits — use the DC rating for valve or relay loads.","metaTitle":"Siemens 3RT1025-3EG24-0KS0-ZX95 SIRIUS Contactor, S0, 11 kW","metaDescription":"Siemens SIRIUS 3RT1025-3EG24-0KS0-ZX95 power contactor, size S0, 11 kW at 690 V. Current lifecycle stage. Screw terminals, RC suppressor. DIN rail mount. 45 mm wide.","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":"88 mm","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 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":"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","Design of the surge suppressor":"with RC elements","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":"8.4 V·A","Apparent pick-up power of magnet coil at AC":"64 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":"0.72","Inductive power factor with the holding power of the coil":"0.24","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=342276&mlfb=3RT1025-3EG24-0KS0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3EG24-0KS0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions for panel layout?","answer":"Width is 45 mm, height 88 mm, depth 140 mm. It mounts on a 35 mm DIN rail per EN 50022 and allows side-by-side mounting without gap."},{"question":"What wire sizes do the screw terminals accept?","answer":"Main terminals accept solid conductors from 2x (0.25 to 2.5 mm²) up to 2x 10 mm² stranded, or AWG equivalents from 2x 16–12 up to 1x 8."},{"question":"What upstream protection is required for type 2 coordination?","answer":"A gL/gG 25 A fuse is specified for type 2 coordination (no weld after short circuit)."},{"question":"Does this contactor include a surge suppressor?","answer":"Yes, it is designed with an RC element (surge suppressor) across the coil terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-3EG24-0KS0-ZX95","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/3RT1025-3EG24-0KS0-ZX95 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}}