{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-1AL20-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-1AL20-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-1AL20-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AL20-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, Size S0, 3RT1025-1AL20-ZW97, 11 kW at 690 V AC-3, screw and snap-on DIN rail, IP20 front, IP00 terminals.","salesMarkdown":"The Siemens 3RT1025-1AL20-ZW97 is a SIRIUS power contactor in Size S0, designed for switching motor loads up to 11 kW at 690 V AC-3 (50/60 Hz). The AC-3 rating of 11 kW at 690 V tells you this contactor handles standard squirrel-cage motor switching at that voltage. For resistive or lightly inductive loads (AC-1), the contactor is rated 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. The auxiliary contact ratings cover 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — useful for control circuit integration. The 91 mm depth, 45 mm width, and 85 mm height place it in the standard S0 footprint. The IP20 front and IP00 terminals mean the enclosure provides finger-safe protection on the front face, but the terminals require a separate touch-safe cover or enclosure. Main circuit terminals accept screw-type connections: solid 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). Stranded conductors: 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²), max 2x 10 mm². AWG equivalents: 2x (16 to 12), 2x (14 to 10), or 1x 8. Strip length and torque spec follow standard Siemens practice for the S0 frame. For type 2 coordination (no-weld protection), the required upstream fuse is 25 A gL/gG. For type 1 coordination (limited damage allowed), the fuse can be 63 A gL/gG. This is the spec to hand to the panel builder when sizing branch protection.","metaTitle":"Siemens 3RT1025-1AL20-ZW97 SIRIUS Power Contactor, Size S0,","metaDescription":"Siemens SIRIUS 3RT1025-1AL20-ZW97 power contactor, Size S0, rated 11 kW at 690 V AC-3. Current lifecycle. Screw/snap-on DIN rail. Sourced to order against RFQ.","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 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":"230 V","at 500 V rated value":"10 kW","at 60 Hz rated value":"230 V","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":"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=161568&mlfb=3RT1025-1AL20-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AL20-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RT1025-1AL20-ZW97?","answer":"The 3RT1023-1AL20 is a lower-rated sibling in the same S0 frame — same footprint and mounting, but with a lower AC-3 power rating. If your BOM specifies the 3RT1025-1AL20-ZW97 for 11 kW at 690 V, the 3RT1023 will not substitute without recalculating the motor load."},{"question":"Where can I buy 3RT1025-1AL20-ZW97 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request with your quantity and target delivery window; availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation is available for 3RT1025-1AL20-ZW97?","answer":"As a standard SIRIUS catalog item, it carries CE marking, UL/CSA recognition, and RoHS/REACH compliance declarations. The manufacturer provides a declaration of conformity and the UL file number on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-1AL20-ZW97","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/3RT1025-1AL20-ZW97 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}}