{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1023-1AR64","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1023-1AR64","canonicalUrl":"https://aoctrl.com/siemens/3RT1023-1AR64","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1023-1AR64","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, size S0, 3RT1023-1AR64, 4 kW at AC-2 400 V, 8.5 A AC-4, screw terminals, 45 mm width, IP20 front.","salesMarkdown":"The Siemens 3RT1023-1AR64 is a SIRIUS S0-frame power contactor rated for switching motor loads at 4 kW under AC-2 duty at 400 V, and 8.5 A under AC-4 duty at 400 V — the AC-4 figure governs reversing or inching applications where the contacts break full motor current. Screw-type terminals on the main circuit accept up to 2x 10 mm² stranded, with auxiliary contacts rated 10 A at 24 V and 6 A at 230 V. The coil operates on 50/60 Hz with a pick-up range of 0.8...1.1 x rated voltage at 50 Hz and 0.85...1.1 at 60 Hz. ## Coordination and protection requirements ## Active lifecycle — current production This part carries a lifecycle status of current production. No successor or replacement has been designated — the 3RT1023-1AR64 remains the active order code for this S0 contactor variant.","metaTitle":"Siemens 3RT1023-1AR64 SIRIUS Power Contactor, S0, 4 kW AC-2,","metaDescription":"Siemens SIRIUS 3RT1023-1AR64 S0 power contactor, 4 kW at AC-2 400 V, 8.5 A AC-4. Active production, screw terminals, 35 mm DIN rail mount. Quoted to order.","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":"400 V","at 500 V rated value":"4.5 kW","at 60 Hz rated value":"400 ... 440 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":"7.5 V·A","Apparent pick-up power of magnet coil at AC":"69 V·A","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.76","Inductive power factor with the holding power of the coil":"0.28","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=397849&mlfb=3RT1023-1AR64","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1023-1AR64/alternatives.json"},"ai":{"faq":[{"question":"What are the key motor ratings for 3RT1023-1AR64?","answer":"The contactor is rated 4 kW at AC-2 duty (400 V) for normal starting of slip-ring motors, and 8.5 A at AC-4 duty (400 V) for reversing or inching applications. For AC-1 resistive loads, the maximum operating current is 10 A."},{"question":"What is the mounting footprint and terminal capacity?","answer":"Width is 45 mm, height 85 mm, depth 140 mm. It snaps onto 35 mm DIN rail per EN 50022. Main circuit screw terminals accept 2x (1...2.5 mm²) solid/stranded, up to 2x 10 mm² max. Auxiliary terminals accept 2x (0.5...1.5 mm²) to 2x (0.75...4 mm²)."},{"question":"Where can I buy 3RT1023-1AR64 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 — submit an RFQ for a firm price and lead time."},{"question":"What compliance documentation is available for 3RT1023-1AR64?","answer":"As a Siemens SIRIUS product, it is designed to meet IEC/EN 60947-4-1 standards for contactors and motor starters. The IP20 front and pollution degree 3 rating are per IEC 60529 and IEC 60947-1. Specific RoHS/REACH declarations are available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1023-1AR64","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/3RT1023-1AR64 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}}