{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1023-1AN24-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1023-1AN24-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1023-1AN24-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1023-1AN24-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1023-1AN24-1AA0 power contactor, size S0, 45 mm width, 140 mm depth, screw-type terminals, AC-4 rated 8.5 A at 400 V.","salesMarkdown":"Its headline AC-4 rating of 8.5 A at 400 V governs the maximum motor inrush current during plugging or reversing duty — the real-world limit for frequent starts, not the AC-3 figure. For AC-2 duty (wound-rotor motors) it carries 4 kW at 400 V, and AC-12 (control-circuit resistive) goes to 10 A. At 45 mm wide and 85 mm tall, the S0 frame fits tightly on DIN rail — six units per 270 mm section. Depth of 140 mm clears most standard gland plates. Screw-type terminals accept 2x (0.5...1.5 mm²) solid or 2x (0.75...2.5 mm²) stranded on the control side; main power terminals handle 2x (1...2.5 mm²) stranded up to 2x 10 mm² solid. AWG equivalents: 2x 16–12 stranded, 1x 8 solid for the main circuit. No special tools beyond a standard screwdriver needed. ## Coordination and protection pairing For Type 2 coordination (no weld risk after fault) Siemens specifies a gL/gG 25 A fuse upstream. Type 1 coordination (device may weld, but no fire or arc hazard) allows a 63 A gL/gG fuse. These values matter for SCCR compliance in UL 508A panels — the fuse limits let you calculate the available fault current the contactor can safely interrupt.","metaTitle":"Siemens 3RT1023-1AN24-1AA0 SIRIUS Power Contactor, S0, 45mm,","metaDescription":"Siemens 3RT1023-1AN24-1AA0 SIRIUS power contactor, size S0, 45 mm width, 140 mm depth. AC-4 rated 8.5 A at 400 V. Active production, quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"140 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":"220 V","at 500 V rated value":"4.5 kW","at 60 Hz rated value":"220 V","at 690 V rated value":"5.5 kW","Instantaneous Contact":"2","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":"4 kW","at AC-4 at 400 V rated value":"8.5 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=507541&mlfb=3RT1023-1AN24-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1023-1AN24-1AA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1023-1AN24-1AA0 and how is it quoted?","answer":"This part is sourced through independent distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"What is the AC-4 rating of 3RT1023-1AN24-1AA0?","answer":"AC-4 at 400 V is rated 8.5 A — the limit for frequent plugging or reversing motor starts. AC-2 duty at 400 V carries 4 kW."},{"question":"Will 3RT1023-1AN24-1AA0 drop into a panel specified for 3RT1023-1AL20?","answer":"Both are S0-frame contactors with identical 45 mm width and DIN-rail mounting. The main difference is the coil voltage — the -1AN24-1AA0 uses a 24 VDC coil (10 A pickup), while the -1AL20 uses a different coil voltage. Verify your control supply before substitution."},{"question":"What fuse coordination does 3RT1023-1AN24-1AA0 require?","answer":"Type 2 coordination: gL/gG 25 A fuse. Type 1 coordination: gL/gG 63 A fuse. These protect the contactor during short-circuit faults."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1023-1AN24-1AA0","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/3RT1023-1AN24-1AA0 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}}