{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1023-1AH00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1023-1AH00","canonicalUrl":"https://aoctrl.com/siemens/3RT1023-1AH00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1023-1AH00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1023-1AH00, S0 frame, 3-pole, 24 VDC coil, screw terminals, 4 kW at 400 V AC-2, 5.5 kW at 690 V.","salesMarkdown":"## Integrator note — SIRIUS 3RT1023-1AH00 Its 24 VDC coil holds at nominal and drops out reliably below the pickup threshold, making it a straightforward fit for PLC-driven 24 V control circuits. Three normally-open main contacts handle the power path; there are no built-in NC contacts on the main poles, so any auxiliary contact block needed for feedback or interlocking must be added separately. Rated at 4 kW at 400 V in AC-2 duty (slip-ring motor starting) and 5.5 kW at 690 V, this contactor covers a solid band of European-standard motor sizes. The AC-4 rating of 8.5 A at 400 V matters for reversing or inching applications where the contactor makes and breaks stalled-rotor current — that's the number to size against if your cycle includes plugging or jogging. Mounting is via screw or snap-on onto 35 mm DIN rail per EN 50022 — the S0 footprint is compact at 45 mm wide, so it packs tightly on the rail. Screw-type terminals on the main circuit accept up to 2x 10 mm² or 1x AWG 8, with solid and stranded ranges covered. At 45 mm wide, 85 mm tall, and 91 mm deep, the S0 contactor leaves room for auxiliary contact blocks alongside on the DIN rail. Operating temperature range of -25 to +60 °C covers most indoor industrial environments; pollution degree 3 assumes conductive pollution, so the enclosure must maintain the IP rating. Wiring the main circuit: screw terminals accept 2x (0.5–1.5 mm²) solid, 2x (0.75–2.5 mm²) stranded, or up to 2x (0.75–4 mm²) fine-stranded. For the coil circuit, the same terminal range applies.","metaTitle":"Siemens 3RT1023-1AH00 SIRIUS Power Contactor, 3-Pole, 24 VDC","metaDescription":"Siemens 3RT1023-1AH00 SIRIUS power contactor, 3-pole, 24 VDC coil, S0 frame, 4 kW at 400 V AC-2, 5.5 kW at 690 V. Current production. Quoted 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 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":"48 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 (0.5 ... 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":"7.8 V·A","Apparent pick-up power of magnet coil at AC":"61 V·A","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=231548&mlfb=3RT1023-1AH00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1023-1AH00/alternatives.json"},"ai":{"faq":[{"question":"What are the key motor ratings for the 3RT1023-1AH00?","answer":"The contactor is rated 4 kW at 400 V in AC-2 duty and 5.5 kW at 690 V. For AC-4 reversing duty, the maximum operating current is 8.5 A at 400 V."},{"question":"What is the depth of the 3RT1023-1AH00?","answer":"The depth is 91 mm, with a width of 45 mm and height of 85 mm — the standard S0 frame size for DIN-rail mounting."},{"question":"Where can I buy the 3RT1023-1AH00 and how is it quoted?","answer":"The 3RT1023-1AH00 is available through independent distribution channels and is quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"Does the 3RT1023-1AH00 require side clearance for mounting?","answer":"No, side-by-side mounting is permitted with zero gap between units. The contactor snaps onto 35 mm DIN rail per EN 50022."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1023-1AH00","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/3RT1023-1AH00 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}}