{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1023-3AB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1023-3AB00","canonicalUrl":"https://aoctrl.com/siemens/3RT1023-3AB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1023-3AB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1023-3AB00, S0 frame, 3 NO main contacts, 24 VAC 50 Hz coil, screw-type terminals, 45 mm width, DIN-rail mount.","salesMarkdown":"## SIRIUS 3RT1023-3AB00 — Power Contactor, S0 Frame, 24 VAC Coil ## Motor Ratings and Duty Cycles Rated for motor switching at 4.5 kW at 500 V and 5.5 kW at 690 V, this contactor handles three-phase induction motors in the 4–5.5 kW band, provided the supply voltage matches those levels. For AC-4 duty (plugging, inching, reversing) at 400 V, the operating current is 8.5 A — the figure that governs frequent jogging or reversing applications, not the higher AC-3 rating. The AC-12 maximum operating current is 10 A, which covers resistive and solid-state loads in control circuits. For AC-2 (slip-ring motor starting) at 400 V, the rated power is 4 kW. These values are critical for the site electrical engineer sizing the branch circuit protection — Type 2 keeps the contactor in service after a fault; Type 1 is cheaper but may require a spare on the shelf. ## Environmental Limits and Installation Screw-type terminals accept solid or stranded conductors: 2x (0.25–2.5 mm²) for control wiring, and for the main circuit 2x (1–2.5 mm²), 2x (2.5–6 mm²), or max 2x 10 mm². AWG equivalents are 2x (16–12), 2x (14–10), and 1x 8. The 45 mm width and 85 mm height fit the S0 envelope, with 90 mm depth including the coil terminals. Side-by-side mounting is permitted, with 6 mm spacing to adjacent devices.","metaTitle":"Siemens 3RT1023-3AB00 SIRIUS Power Contactor, S0, 3-Pole, 24","metaDescription":"Siemens 3RT1023-3AB00 SIRIUS power contactor, S0 frame, 3 NO main contacts, 24 VAC 50 Hz coil. Rated 4.5 kW at 500 V, 5.5 kW at 690 V. Current lifecycle stage. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"90 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"85 mm","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 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":"4.5 kW","at 690 V rated value":"5.5 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":"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 (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"40 A","Apparent holding power of magnet coil at AC":"7.8 V·A","Apparent pick-up power of magnet coil at AC":"61 V·A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.82","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=380427&mlfb=3RT1023-3AB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1023-3AB00/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RT1023-3AB00?","answer":"Within the Siemens SIRIUS range, the 3RT1023-1AL20 and 3RT1023-1AP00 share the same S0 frame, 3-pole main contact arrangement, and screw-terminal construction. The primary difference is the coil voltage — the 3RT1023-3AB00 uses a 24 VAC 50 Hz coil, while the -1AL20 and -1AP00 use different coil ratings. Panel drop-in without rewiring requires matching the coil voltage and control circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1023-3AB00","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/3RT1023-3AB00 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}}