{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-3AF06","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-3AF06","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-3AF06","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-3AF06","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S0, 3 NO main contacts, screw terminals, 7.5 kW at 500/690 V, AC-4 12.5 A at 400 V, IP20 front, DIN rail mount, 91 mm depth.","salesMarkdown":"## SIRIUS S0 power contactor — 3RT1024-3AF06 The Siemens SIRIUS 3RT1024-3AF06 is a Size S0 power contactor with three normally-open main contacts and no normally-closed main contacts, rated for motor switching up to 7.5 kW at both 500 V and 690 V. It carries an AC-4 rating of 12.5 A at 400 V, meaning it can handle the demanding inrush and breaking duty of reversing or plugging motor loads — not just steady-state running current. The screw-type terminals accept 2x (0.25... 2.5 mm²) solid or 2x (1... 2.5 mm²) stranded conductors, with a maximum of 2x 10 mm² per terminal, which covers most panel wiring up to the 25 A gL/gG fuse required for Type 2 coordination. ## DIN-rail panel integration The 65 mm width and 85 mm height place it in the S0 footprint, which is the standard frame size for contactors in the 7.5 kW range. Depth is 91 mm — verify clearance to the gland plate or back panel if the enclosure is shallow. Side-by-side mounting is allowed, so a row of these contactors can be ganged without thermal gaps, saving rail space in multi-motor panels. ## Switching ratings and coordination For AC-2 duty (slip-ring motor starting) at 400 V, the rated power is 5.5 kW. The AC-4 rating of 12.5 A at 400 V governs the most severe switching duty — reversing, inching, or plugging — where the contactor must break the locked-rotor current. For Type 2 coordination (no-weld fault protection), the required upstream fuse is 25 A gL/gG; for Type 1 coordination (welding permitted), the fuse can be 63 A gL/gG.","metaTitle":"Siemens 3RT1024-3AF06 SIRIUS Power Contactor, 3 NO, 7.5 kW","metaDescription":"Siemens SIRIUS 3RT1024-3AF06 power contactor, Size S0, 3 NO main contacts, 7.5 kW at 500/690 V, AC-4 12.5 A at 400 V, screw terminals, IP20 front, DIN rail mount, current productio","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"91 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"65 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":"110 V","at 500 V rated value":"7.5 kW","at 690 V rated value":"7.5 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":"5.5 kW","at AC-4 at 400 V rated value":"12.5 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=459182&mlfb=3RT1024-3AF06","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-3AF06/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of 3RT1024-3AF06?","answer":"It is a Size S0 power contactor with 3 NO main contacts, rated 7.5 kW at 500 V and 690 V, AC-4 12.5 A at 400 V, with a mechanical life of 10 million cycles. Operating temperature range is -25 to +60 °C."},{"question":"Where can I buy 3RT1024-3AF06?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."},{"question":"What is the depth of 3RT1024-3AF06?","answer":"The depth is 91 mm. Combined with the 65 mm width and 85 mm height, this places it in the standard S0 frame size for DIN-rail mounting."},{"question":"What wire sizes does the 3RT1024-3AF06 accept?","answer":"The screw terminals accept 2x (0.25... 2.5 mm²) solid or 2x (1... 2.5 mm²) stranded, with a maximum of 2x 10 mm² per terminal. AWG equivalents are 2x (16... 12) and 2x (14... 10), with 1x 8 maximum."},{"question":"Will 3RT1024-3AF06 drop into a panel specified for 3RT1023-1AL20?","answer":"Both are Size S0 contactors on the same 35 mm DIN-rail footprint, so the mechanical mounting is identical. The 3RT1024-3AF06 carries 3 NO main contacts versus the 3RT1023-1AL20's configuration — verify the contact arrangement matches your circuit before swapping. Terminal types and wire ranges are similar, but always confirm the control voltage and auxiliary contact count against your schematic."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-3AF06","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/3RT1024-3AF06 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}}