{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1023-1AP64","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1023-1AP64","canonicalUrl":"https://aoctrl.com/siemens/3RT1023-1AP64","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1023-1AP64","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1023-1AP64, size S0, 4.5 kW at 500 V / 5.5 kW at 690 V, 8.5 A AC-4, 45 mm width, screw terminals, IP20 front.","salesMarkdown":"## Siemens SIRIUS 3RT1023-1AP64 Power Contactor — Integrator's Note Rated for a 4.5 kW motor at 500 V (50 Hz) and 5.5 kW at 690 V (60 Hz), this contactor covers common European and North American line voltages. Coil rated for 220 V at 50 Hz and 240 V at 60 Hz, operating range 0.8 to 1.1 times rated voltage at both frequencies. Front protection is IP20 (finger-safe), but the terminals themselves are only IP00 — so the panel enclosure provides the touch protection at the wiring points. ## Panel Fit & Wiring — What the Specs Mean for the Build At 45 mm wide, 85 mm tall, and 140 mm deep, the S0 frame fits a standard 45 mm DIN-rail slot. Main circuit terminals are screw-type, accepting solid or stranded wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²). That covers most motor feeds up to 5.5 kW without needing a lug adapter. The contactor carries two instantaneous auxiliary contacts for feedback or interlocking. For type 2 coordination (no weld under fault), use a gL/gG fuse rated at 25 A. For type 1 coordination (welding allowed, but no fire risk), the fuse can go up to 63 A. This lets the panel designer choose between protecting the contactor or protecting the downstream circuit, depending on the application criticality. ## Duty Ratings — AC-2, AC-4, and DC Switching That is a lower stress than AC-4, so the electrical life will be longer in that application. For AC-4 at 400 V, the 8.5 A rating is the limiting factor — do not exceed it on reversing or plugging duty. DC switching capability is provided for the auxiliary contacts: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. These are resistive load ratings (DC-12/13 typical). If you are switching an inductive DC load like a brake coil, derate further or add a free-wheel diode. That is the mechanical endurance of the contactor frame and armature, not the electrical life under load — electrical life will be lower depending on the switching current and duty cycle.","metaTitle":"Siemens 3RT1023-1AP64 SIRIUS Power Contactor, S0, 4.5 kW at","metaDescription":"Siemens SIRIUS 3RT1023-1AP64 power contactor, size S0, 4.5 kW at 500 V, 5.5 kW at 690 V, 8.5 A AC-4. Screw terminals, 45 mm wide, IP20 front. Current production.","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":"0.8 ... 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":"240 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=1607&mlfb=3RT1023-1AP64","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1023-1AP64/alternatives.json"},"ai":{"faq":[{"question":"How do I source this part?","answer":"The 3RT1023-1AP64 is sourced to order against an RFQ through our industrial automation channel. Submit an RFQ with your required quantity and target delivery date, and we will confirm availability and lead time. No shelf stock is implied."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1023-1AP64","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/3RT1023-1AP64 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}}