{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-1AD00-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-1AD00-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-1AD00-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AD00-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S0, 3 NO main contacts, 42 V 50 Hz coil, screw terminals, 45 mm width, IP20 front.","salesMarkdown":"It mounts on a 35 mm DIN rail per DIN EN 50022, either snapped on or screwed, and fits a standard panel enclosure with 45 mm width, 85 mm height, and 91 mm depth. At 500 V the contactor handles 10 kW and at 690 V it handles 11 kW — both under AC-3 duty, the standard for squirrel-cage motors. That fuse choice governs the short-circuit protection of the entire branch. ## Mechanical endurance and environmental limits Rated for 10 million mechanical cycles, so it outlasts most machines in light-duty cycling. Side-by-side mounting is allowed with zero clearance, saving rail space — the 6 mm clearance spec is for the side of the contactor body, not between units. ## Wiring and terminal details Main circuit terminals accept solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²). Stranded conductors: 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or max 2x 10 mm². AWG equivalents: 2x (16 to 12), 2x (14 to 10), or 1x 8. The auxiliary contact block (not included) uses a separate terminal set. Coil draws at 42 V 50 Hz; the operating factor range of 0.8 to 1.1 means the coil holds in at 33.6 V and drops out above 46.2 V — standard for this SIRIUS family.","metaTitle":"Siemens 3RT1025-1AD00-1AA0 SIRIUS Power Contactor, 3 NO, 42","metaDescription":"Siemens SIRIUS 3RT1025-1AD00-1AA0 power contactor, Size S0, 3 NO main contacts, 42 V 50 Hz coil, 45 mm wide, screw terminals. Current lifecycle. Sourced to order.","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 50 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 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":"42 V","at 500 V rated value":"10 kW","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":"7.8 V·A","Apparent pick-up power of magnet coil at AC":"61 V·A","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.82","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=221974&mlfb=3RT1025-1AD00-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AD00-1AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1025-1AD00-1AA0 and how do I get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ against the order code; availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional second-source to 3RT1025-1AD00-1AA0?","answer":"The 3RT1023-1AL20 is a smaller-frame SIRIUS contactor (Size S00) with a different coil voltage and lower current ratings. It will not drop into the same panel without rewiring and a different mounting footprint. The 3RT1025-1AN24 and 3RT1026-1AB00 are also Size S0 but with different coil voltages or auxiliary configurations — verify the coil and terminal specs before substituting."},{"question":"What compliance documentation does this brand provide for 3RT1025-1AD00-1AA0?","answer":"Siemens SIRIUS contactors carry CE marking for the European market and are designed to meet IEC/EN 60947-4-1. RoHS and REACH declarations are available from Siemens documentation. The reference code per DIN EN 81346-2 is Q."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-1AD00-1AA0","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/3RT1025-1AD00-1AA0 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}}