{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-1AN24","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-1AN24","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-1AN24","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AN24","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1025-1AN24, S0 size, 7.5 kW at 400 V AC-3, screw terminals, 45 mm width, screw and snap-on DIN rail mounting.","salesMarkdown":"The Siemens SIRIUS 3RT1025-1AN24 is a size S0 power contactor rated for motor switching at 7.5 kW at 400 V AC-3 (50/60 Hz) and 11 kW at 690 V. Main contact wiring accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid or stranded; auxiliary side takes 2x (1 to 2.5 mm²) or max 2x 10 mm². AWG equivalents: main 2x (16 to 12), 2x (14 to 10), 1x 8. Side-by-side mounting is permitted — no derating gap required, but the 6 mm side clearance to adjacent components is the minimum for heat dissipation. Depth of 140 mm and height of 85 mm mean it clears most 200 mm deep enclosures, but check gland-plate protrusion if the contactor sits near the back wall. The S0 footprint is shared across the SIRIUS 3RT1 family, so a swap to a higher-rated sibling keeps the same DIN rail drilling. Type 2 coordination calls for 25 A. That's the short-circuit protection the contactor needs to survive a fault without welding — spec the fuse downstream accordingly. Mechanical life is typical 10 million operations; the AC-4 rating at 400 V is 15.5 A for heavy inching or plugging duty.","metaTitle":"Siemens 3RT1025-1AN24 SIRIUS Power Contactor, 7.5 kW at 400","metaDescription":"Siemens SIRIUS 3RT1025-1AN24 power contactor, S0 size, 7.5 kW at 400 V AC-3, 11 kW at 690 V. Screw terminals, IP20 front. Current production. Available 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","At The Side":"6 mm","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 400 V rated value":"7.5 kW","at 50 Hz rated value":"220 V","at 500 V rated value":"10 kW","at 60 Hz rated value":"220 V","at 690 V rated value":"11 kW","Instantaneous Contact":"2","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","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","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)","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","operational current at AC-15 at 230 V rated value":"6 A","operational current at AC-15 at 400 V rated value":"3 A","Inductive Power Factor With Closing Power Of The Coil":"0.72","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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","type of connectable conductor cross-sections at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","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=235922&mlfb=3RT1025-1AN24","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AN24/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1025-1AN24 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."},{"question":"What is 3RT1025-1AN24's listed depth?","answer":"The depth is 140 mm, with a width of 45 mm and height of 85 mm, fitting the S0 contactor footprint on 35 mm DIN rail."},{"question":"What compliance documentation does Siemens provide for 3RT1025-1AN24?","answer":"The part carries the SIRIUS brand designation and is designed to IEC 60947-4-1 standards. Specific RoHS, REACH, and UL documentation is available from Siemens upon request — the evidence does not list cert numbers on this listing."},{"question":"Will 3RT1025-1AN24 drop into a panel specified around 3RT1026-1AB00 without rewiring?","answer":"Both are S0 size contactors on the same 45 mm DIN rail footprint, so the mechanical fit is identical. The wiring difference is in the terminal capacity and coil voltage — verify the auxiliary contact configuration and control voltage match before swapping, as the 3RT1026-1AB00 may carry different ratings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-1AN24","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/3RT1025-1AN24 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}}