{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1AC20-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1AC20-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1AC20-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1AC20-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1024-1AC20-ZW96 power contactor, S0 frame, 7.5 kW at 500 V/690 V, AC-4 12.5 A at 400 V, 45 mm width, IP20 front, screw terminals.","salesMarkdown":"The AC-12 maximum operating current of 10 A applies to resistive loads like heater banks or control transformers. ## Auxiliary contact capacity The built-in auxiliary contacts are rated for 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. For DC switching, the ratings drop to 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — typical for PLC inputs or signal lamps. Keep the DC voltage below 60 V for full 2 A capacity; above that, the arc extinguishes less efficiently. Main power terminals accept solid conductors from 0.5 to 4 mm² (two per clamp) and stranded from 1 to 10 mm² (two per clamp). AWG equivalents are 2x 16–12 solid, 2x 14–10 stranded, and 1x 8. Mechanical life is 10 million cycles — the contactor itself is not the weak link in most duty cycles.","metaTitle":"Siemens SIRIUS 3RT1024-1AC20-ZW96 Power Contactor, 7.5 kW at","metaDescription":"Siemens SIRIUS 3RT1024-1AC20-ZW96 power contactor, S0 size, 7.5 kW at 500 V/690 V, AC-4 12.5 A at 400 V, 45 mm wide, IP20 front, current production. Sourced to order.","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":"7.5 kW","at 60 Hz rated value":"24 V","at 690 V rated value":"7.5 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":"5.5 kW","at AC-4 at 400 V rated value":"12.5 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=237670&mlfb=3RT1024-1AC20-ZW96","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1AC20-ZW96/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this contactor?","answer":"Motor power: 7.5 kW at 500 V and 690 V. AC-4 current: 12.5 A at 400 V. AC-2 power: 5.5 kW at 400 V. Auxiliary contacts: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V AC; 2 A at 60 V DC, 1 A at 110 V DC, 0.3 A at 220 V DC. Mechanical life: 10 million cycles."},{"question":"What fuse do I need for Type 2 coordination?","answer":"For Type 2 coordination (no damage after a short circuit), use a gL/gG 25 A fuse upstream. For Type 1 coordination (contactor may be sacrificial), use a gL/gG 63 A fuse."},{"question":"What is the mounting and wiring specification?","answer":"Mounts on 35 mm DIN rail per EN 50022 via screw or snap-on. Width is 45 mm, height 85 mm, depth 91 mm. Main terminals accept solid 0.5–4 mm² (2x per clamp) and stranded 1–10 mm² (2x per clamp). AWG: 2x 16–12 solid, 2x 14–10 stranded, 1x 8."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1AC20-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/3RT1024-1AC20-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}}