{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-1AC20-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-1AC20-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-1AC20-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AC20-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT1025-1AC20-ZW96, 24 V 50/60 Hz coil, screw terminals, 45 mm wide, IP20 front.","salesMarkdown":"## SIRIUS S0 power contactor, 24 V coil, screw terminals The Siemens 3RT1025-1AC20-ZW96 is a SIRIUS S0-size power contactor with a 24 V 50/60 Hz coil, designed for screw and snap-on mounting onto 35 mm DIN rail per EN 50022. Its 45 mm width and 85 mm height fit standard panel layouts, and the IP20 front face allows safe operation in enclosed control cabinets. Rated for motor switching in AC-2 duty at 7.5 kW (400 V) and AC-4 at 15.5 A (400 V), this contactor handles reversing, plugging, and inching applications common on conveyor and pump lines. The 24 V coil draws its control voltage from a standard transformer or PLC output, and the operating range holds from 0.8 to 1.1 × rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz. Main circuit terminals accept screw-type connections: 2 × (0.5 to 1.5 mm²) solid, 2 × (0.75 to 2.5 mm²) stranded, and up to 2 × (0.75 to 4 mm²) maximum. AWG equivalents are 2 × (16 to 12), 2 × (14 to 10), and 1 × 8. Auxiliary and control wiring uses the same terminal range, simplifying panel wire-up. Side-by-side mounting is permitted with zero lateral clearance, saving rail space. When ganged, the 6 mm spacing to adjacent devices or enclosure walls must be maintained for heat dissipation. These values guide the selection of branch-circuit protection for the motor starter assembly. The S0 frame size is a common Siemens SIRIUS platform, ensuring spare parts and accessories (coil, auxiliary contact blocks, surge suppressors) are widely stocked.","metaTitle":"Siemens 3RT1025-1AC20-ZW96 SIRIUS Power Contactor, S0, 24 VA","metaDescription":"Siemens SIRIUS 3RT1025-1AC20-ZW96 power contactor, S0 size, 24 V 50/60 Hz coil, 45 mm wide, IP20 front, screw terminals. Current lifecycle stage. Quoted 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":"24 V","at 500 V rated value":"10 kW","at 60 Hz rated value":"24 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=307777&mlfb=3RT1025-1AC20-ZW96","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1AC20-ZW96/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of the 3RT1025-1AC20-ZW96?","answer":"The depth is 91 mm, which fits standard 100 mm deep enclosures and leaves room for wiring behind the DIN rail."},{"question":"What terminal wire sizes does the main circuit accept?","answer":"Solid wires: 2 × (0.5 to 1.5 mm²); stranded: 2 × (0.75 to 2.5 mm²); maximum: 2 × (0.75 to 4 mm²) or 1 × 10 mm². AWG equivalents: 2 × (16 to 12), 2 × (14 to 10), 1 × 8."},{"question":"Where can I buy the 3RT1025-1AC20-ZW96 and how is it quoted?","answer":"This contactor is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Does the 3RT1025-1AC20-ZW96 drop into a panel designed for the 3RT1023-1AL20?","answer":"Both are S0 frame size (45 mm wide) with screw terminals and 35 mm DIN-rail mounting, so the physical footprint and rail clip are identical. Verify the coil voltage — the 3RT1025-1AC20-ZW96 uses 24 V 50/60 Hz, while the 3RT1023-1AL20 may differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-1AC20-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/3RT1025-1AC20-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}}