{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2025-1AC20-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2025-1AC20-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RT2025-1AC20-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2025-1AC20-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, 3RT2025-1AC20-ZW96, Size S0, 45 mm, screw-type terminals, auxiliary switch included, 24 V coil.","salesMarkdown":"For switching motor loads, the contactor is rated 10 A at 24 V and 3 hp at 230 V, which covers a standard 3 hp single-phase motor or a small three-phase motor through a contactor block. At 400 V it's rated 3 A, so it'll handle a 1.5 kW motor on a 400 V line — typical for a small conveyor or pump. Maximum mechanical switching frequency is 1 000 operations per hour for AC-1, AC-2, and AC-3 duty; AC-4 (plugging/inching) is limited to 300 operations per hour. Wire termination accepts solid or stranded conductors from 1 to 10 mm², or two conductors per terminal from 0.5 to 2.5 mm². That covers most panel wiring from 14 AWG to 8 AWG without needing ferrule adapters. For BOM freeze or long-term planning, the SIRIUS 3RT2 series is a mature platform with broad installed base. If you're sourcing for a new panel design, the 45 mm width and Size S0 footprint match the standard DIN-rail grid, and the screw terminals are field-serviceable without special tools. That's tight enough to pack contactors side-by-side on a DIN rail in a 600 mm wide enclosure. Arcing time is 10 ms, and the contactor is rated for AC switching with a 4 to 16 ms operating time. The screw terminals on the magnet coil are standard M3.5 or similar, so a Pozidriv #2 or flathead is all you need for field replacement.","metaTitle":"Siemens 3RT2025-1AC20-ZW96 SIRIUS Power Contactor, Size S0,","metaDescription":"Siemens 3RT2025-1AC20-ZW96 SIRIUS power contactor, Size S0, 45mm width, screw terminals, 1 NO/1 NC aux. Rated 10A at 24V, 3 hp at 230V. Current lifecycle stage, sourced to order. R","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","at 60 Hz":"0.28","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":"24 V","at 500 V rated value":"2 A","at 60 Hz rated value":"24 V","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","Safety-Related Switching On":"Yes","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":"7.9 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","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","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/eda5e0fcfe7b896e7c27128b3fc66a15.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1042958&mlfb=3RT2025-1AC20-ZW96","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2025-1AC20-ZW96/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this contactor?","answer":"It's rated 10 A at 24 V, 3 hp at 230 V, and 3 A at 400 V. Mechanical life is 10 000 000 operations typical, with a maximum switching frequency of 1 000 ops/hr for AC-3 duty."},{"question":"How do I get pricing and availability for the 3RT2025-1AC20-ZW96?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Current pricing and availability are confirmed at quote time — submit an RFQ to get a firm price and lead time."},{"question":"What is the closest functional alternative to the 3RT2025-1AC20-ZW96?","answer":"The 3RT2016-1AK22 is a smaller-frame SIRIUS contactor (Size S00, 22.5 mm wide) with a 24 V coil, but it has lower current ratings and a different footprint. It will not drop into a panel wired for the Size S0 45 mm frame without rewiring the DIN rail and terminals."},{"question":"Will the 3RT2025-1AC20-ZW96 fit a panel designed for a 3RT2016-1AK22?","answer":"No — the 3RT2025-1AC20-ZW96 is a Size S0 frame at 45 mm width, while the 3RT2016-1AK22 is a Size S00 at 22.5 mm. The larger contactor requires a different DIN-rail footprint and terminal layout, so you would need to rework the panel layout."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2025-1AC20-ZW96","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/3RT2025-1AC20-ZW96 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}}