{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2025-1AU00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2025-1AU00","canonicalUrl":"https://aoctrl.com/siemens/3RT2025-1AU00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2025-1AU00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT2025-1AU00, 45 mm wide, screw terminals, 480 V rated 14 A, 230 V rated 3 hp.","salesMarkdown":"The Siemens 3RT2025-1AU00 is a SIRIUS S0 power contactor — the S0 frame is the workhorse size for light-to-medium motor and resistive loads in control panels. The headline motor rating is 14 A at 480 V and 3 hp at 230 V. For resistive or heating loads (AC-1), the contactor will handle more current, but the AC-3 number is what you size against for a pump, fan, or conveyor. The auxiliary contact is rated 10 A at 24 V, 2 A at 48/60 V, and derates further up to 0.3 A at 220 V — enough for a PLC input or a pilot light, but not for switching another contactor coil directly at higher voltages without checking the inrush. That side clearance is tighter than the vertical, so when you're packing multiple contactors side-by-side on the DIN rail, the 6 mm gap is the limiting factor. Wire range accepts 1 to 10 mm² solid or stranded, and the terminal can take two conductors per clamp: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²). ## Operating conditions and lifecycle The mechanical life of the contactor is typical 10 million operations. Electrical life depends on the load: 1,000 operations per hour at AC-1, AC-2, AC-3, and AC-3e, dropping to 300 per hour at AC-4 — the heavy-duty plugging and inching duty. This is a standard catalog part, not a phase-out or last-time-buy item.","metaTitle":"Siemens 3RT2025-1AU00 SIRIUS S0 Power Contactor, 480V 14A","metaDescription":"Siemens 3RT2025-1AU00 SIRIUS S0 power contactor. 480V 14A AC-3, 230V 3hp. Screw terminals, 45mm wide, DIN rail. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"97 mm","Solid":"1 ... 10 mm²","Width":"45 mm","at AC":"4 ... 16 ms","Height":"85 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"1 ... 10 mm²","at 50 Hz":"0.25","Downwards":"10 mm","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"1 000 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","at AC-3e maximum":"1 000 1/h","For Main Contacts":"16 ... 8","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S0","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Power contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"3 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"14 A","at 50 Hz rated value":"240 V","at 500 V rated value":"2 A","at 600 V rated value":"17 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"1 hp","at 200/208 V rated value":"3 hp","at 220/230 V rated value":"5 hp","at 460/480 V rated value":"10 hp","at 575/600 V rated value":"15 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"1.8 W","at AC-2 at 400 V rated value":"7.5 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"15.5 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2009","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"35.2 A","at AC-5b up to 400 V rated value":"14.1 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)","Without Load Current Share Typical":"7.6 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG: 63A (690V,100kA), aM: 32A (690V,100kA), BS88: 63A (415V,80kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"0.6 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","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)","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC","Limited To 1 S Switching At Zero Current Maximum":"225 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"225 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"189 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"140 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"115 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / P600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"10 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1","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":"https://cdn.aoctrl.com/024fe0564434025aa225bc65e5ef7caf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=295981&mlfb=3RT2025-1AU00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2025-1AU00/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RT2025-1AU00?","answer":"The depth is 97 mm. That's the body dimension; add clearance for screw terminals and wiring bends."},{"question":"What wire sizes does 3RT2025-1AU00 accept?","answer":"Solid or stranded wire from 1 to 10 mm². The terminals can also take two conductors per clamp: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²)."},{"question":"Will 3RT2025-1AU00 drop into a panel specified around 3RT2024-1AL20-ZX95 without rewiring?","answer":"Both are S0-frame SIRIUS contactors with the same 45 mm width and DIN-rail mounting. The footprint and terminal layout are identical, so it will physically fit the same DIN rail and panel cutout. Verify the coil voltage and auxiliary contact configuration match your circuit before swapping — the 3RT2025-1AU00 carries a built-in auxiliary switch, which may differ from the 3RT2024 variant."},{"question":"Where can I buy 3RT2025-1AU00?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2025-1AU00","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/3RT2025-1AU00 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}}