{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-3AG20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-3AG20","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-3AG20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3AG20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT1025-3AG20, 7.5 kW at 400 V AC-3, screw-type terminals, snap-on 35 mm DIN rail, active lifecycle.","salesMarkdown":"## SIRIUS S0 power contactor for motor loads The Siemens SIRIUS 3RT1025-3AG20 is a size S0 power contactor rated for AC-3 motor duty at 7.5 kW on 400 V, 10 kW at 500 V, and 11 kW at 690 V. It carries a 10 A rated operational current at AC-12 (resistive) and a 15.5 A rating at AC-4 (inching/plugging) on 400 V. The coil operates on 110 V at 50 Hz or 60 Hz with a tolerance band of 0.8...1.1 times the rated voltage. Panel integration is straightforward — fits standard S0 footprint. Main circuit screw terminals accept 2x (1...2.5 mm²) solid/stranded, 2x (2.5...6 mm²), or max 2x 10 mm². AWG equivalents: 2x (16...12), 2x (14...10), 1x 8. Solid conductor range 2x (0.25...2.5 mm²). The terminals are IP00 at the connection point; the front enclosure is IP20. Side-by-side mounting permitted with zero spacing (0 mm gap) for dense panel layouts. The mechanical endurance is 10 million switching cycles typical.","metaTitle":"Siemens 3RT1025-3AG20 SIRIUS S0 Contactor, 7.5 kW at 400 V A","metaDescription":"Siemens SIRIUS 3RT1025-3AG20 power contactor, size S0, 7.5 kW at 400 V AC-3, screw terminals, snap-on DIN rail. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"90 mm","Solid":"2x (0.25 ... 2.5 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","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 400 V rated value":"7.5 kW","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":"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","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","operating current at AC-12 maximum":"10 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","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","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","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","operating current at AC-15 at 230 V rated value":"6 A","operating 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","Of The Contactor With Added Electronics-Compatible Auxiliary Switch Block Typical":"5 000 000","type of connectable conductor cross-sections at AWG conductors for auxiliary contacts":"2x (24 ... 14)"}},"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=185641&mlfb=3RT1025-3AG20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-3AG20/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does the 3RT1025-3AG20 come with?","answer":"The product is a Siemens SIRIUS industrial control component; standard documentation includes RoHS, REACH, and CE declarations. Specific UL or IEC certificates are available on request from Siemens."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-3AG20","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/3RT1025-3AG20 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}}