{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-1AC24-0AA1-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-1AC24-0AA1-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-1AC24-0AA1-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AC24-0AA1-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, S0 frame, 24 VAC 50/60 Hz coil, screw terminals, screw and snap-on mounting on 35 mm DIN rail per EN 50022.","salesMarkdown":"## SIRIUS S0 power contactor — 24 VAC coil, 10/11 kW motor duty The Siemens 3RT1025-1AC24-0AA1-ZX95 is a SIRIUS S0-frame power contactor with a 24 VAC 50/60 Hz coil, designed for screw and snap-on mounting onto 35 mm standard mounting rail per DIN EN 50022. It is rated for motor switching at 10 kW at 500 V and 11 kW at 690 V, covering common 400 V and 690 V industrial supply voltages across Europe and export markets. The S0 frame (85 mm height, 45 mm width, 140 mm depth) fits standard 45 mm-wide DIN-rail slots — one module per contactor. Side-by-side mounting is permitted, so a multi-contactor motor starter or reversing group packs tightly on the rail with no mandatory air gap. ## Ratings that drive the spec decision For plugging or inching duty (AC-4 at 400 V), the contactor is rated 15.5 A, which governs applications like crane hoists or reversing conveyors where the motor is reversed under load. For resistive loads (AC-12), the maximum operating current is 10 A. The auxiliary contact ratings span 10 A at 24 V down to 0.3 A at 220 V — enough for PLC-level signal switching but not for heavy pilot duty above 220 V. The coil holds at 24 VAC with a tolerance range of 0.8...1.1 at 50 Hz and 0.85...1.1 at 60 Hz. Below the dropout threshold the contactor releases; a brownout below 19.2 VAC at 50 Hz will drop the main contacts. The main current circuit uses screw-type terminals accepting 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or max. 2x (0.75...4 mm²) solid/stranded. For larger conductors, the terminal also takes 2x (1...2.5 mm²) and 2x (2.5...6 mm²) single or multi-stranded, with a maximum of 2x 10 mm². AWG equivalents are 2x (16...12), 2x (14...10), and 1x 8. With type of coordination 2 (no welding after short circuit), a gL/gG 25 A fuse is required upstream. With type 1 coordination (welding allowed but no fire risk), a 63 A fuse is needed. The contactor itself has 2 instantaneous auxiliary contacts. The mechanical service life is typically 10 million operations.","metaTitle":"Siemens 3RT1025-1AC24-0AA1-ZX95 SIRIUS Power Contactor, 24 V","metaDescription":"Siemens 3RT1025-1AC24-0AA1-ZX95 SIRIUS power contactor, S0 frame, 24 VAC 50/60 Hz coil. Rated 10 kW at 500 V, 11 kW at 690 V. Current lifecycle. Quoted on request.","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":"0.85 ... 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":"24 V","at 500 V rated value":"10 kW","at 60 Hz rated value":"24 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":"8.4 V·A","Apparent pick-up power of magnet coil at AC":"64 V·A","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=128968&mlfb=3RT1025-1AC24-0AA1-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AC24-0AA1-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What are the key electrical ratings for 3RT1025-1AC24-0AA1-ZX95?","answer":"Motor switching: 10 kW at 500 V, 11 kW at 690 V. AC-2 at 400 V: 7.5 kW. AC-4 at 400 V: 15.5 A. Coil: 24 VAC 50/60 Hz. Resistive load (AC-12) max: 10 A."},{"question":"Will 3RT1025-1AC24-0AA1-ZX95 drop into a panel specified around 3RT1023-1AL20?","answer":"Both are S0-frame contactors with the same 45 mm width and DIN-rail mounting, so the footprint is identical. The key difference is the coil voltage — this unit is 24 VAC, while the 1AL20 variant uses a different coil. Verify the control voltage matches your panel before swapping."},{"question":"Where can I buy 3RT1025-1AC24-0AA1-ZX95 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-1AC24-0AA1-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/3RT1025-1AC24-0AA1-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}}