{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1DB44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1DB44","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1DB44","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1DB44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1024-1DB44, S0 frame, 24 VDC coil, screw terminals, varistor suppressor, 45 mm width.","salesMarkdown":"For a 400 V three-phase motor, that translates to roughly 5.5 kW in AC-3 duty (start/run), though the AC-4 figure is the one that governs if your application cycles the contactor while the motor is under load. The built-in varistor surge suppressor clamps the coil's turn-off spike — no external snubber needed for the DC coil circuit. Coil holding power is 5.4 W DC, steady-state, so the 24 VDC supply must deliver that continuously while the contactor is picked up. This is the spec your panel designer needs for the SCCR label. The front face carries IP20 — protected against finger contact. The terminal area is rated IP00, meaning the connection points are not touch-safe when the panel door is open. Screw-type terminals on the main circuit accept 2x (1 to 2.5 mm²) stranded, 2x (2.5 to 6 mm²), or up to 1x 10 mm². The coil/auxiliary terminals take 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded, max 2x 4 mm².","metaTitle":"Siemens 3RT1024-1DB44 SIRIUS Power Contactor, 24 VDC, S0 Fra","metaDescription":"Siemens SIRIUS 3RT1024-1DB44 power contactor, 24 VDC coil, S0 frame size, 45 mm wide. AC-4 rated 12.5 A at 400 V. Current production. Screw terminals, varistor suppressor. Sourced","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"150 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"88 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.8","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","Full-scale value":"1.1","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 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","Design of the surge suppressor":"with varistor","Closing power of magnet coil at DC":"5.4 W","Holding power of magnet coil at DC":"5.4 W","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","Type of voltage of the control supply voltage":"DC","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=361816&mlfb=3RT1024-1DB44","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1DB44/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1024-1DB44 and how do I get a price?","answer":"This part is sourced to order through our distribution network. Submit an RFQ for a firm price and availability quote — stock and pricing are confirmed at quote time."},{"question":"What is 3RT1024-1DB44's depth?","answer":"The depth is 150 mm. Overall dimensions are 45 mm wide by 88 mm tall, fitting the S0 frame footprint."},{"question":"What wire sizes does the 3RT1024-1DB44 accept on the main terminals?","answer":"Main circuit screw terminals accept 2x (1 to 2.5 mm²) stranded, 2x (2.5 to 6 mm²), or up to 1x 10 mm². Coil and auxiliary terminals accept 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded, max 2x 4 mm²."},{"question":"Will 3RT1024-1DB44 drop into a panel specified around 3RT1023-1AL20 without rewiring?","answer":"Both are S0 frame contactors on the same 45 mm DIN-rail footprint, so the mechanical fit and terminal layout are identical. The key difference is the coil voltage: 3RT1024-1DB44 uses 24 VDC, while the 3RT1023-1AL20 uses a different coil voltage — verify your control supply before swapping. Wiring gauge and lug compatibility are the same."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1DB44","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/3RT1024-1DB44 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}}