{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1BM44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1BM44","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1BM44","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1BM44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1024-1BM44 power contactor, S0 frame size, screw-type terminals, 7.5 kW rated motor power at 690 V AC-3, IP20 front, pollution degree 3.","salesMarkdown":"This is typical for contactors; the panel builder accounts for it with enclosure selection. ## Rated duty and motor power In AC-3 duty — the standard category for starting squirrel-cage motors and disconnecting them under running conditions — the 3RT1024-1BM44 delivers 7.5 kW at both 500 V and 690 V. At 400 V AC-2 (slip-ring motor duty) it is rated for 5.5 kW. For resistive loads (AC-12) the maximum continuous current is 10 A. The auxiliary contact block provides 2 instantaneous contacts; their switching capacity is listed at 10 A at 24 V, 6 A at 230 V, and derated to 0.3 A at 220 V DC. The magnet coil draws 5.4 W during both closing and holding — a DC-operated coil consuming the same power in both states, simplifying the control transformer sizing. Main circuit terminals are screw-type, accepting 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or a single 10 mm² conductor. The solid/stranded auxiliary terminal range is 2x (0.5 to 1.5 mm²) and 2x (0.75 to 2.5 mm²), max 2x 4 mm². AWG equivalents for the main contacts are 2x (16 to 12), 2x (14 to 10), and 1x 8. The 150 mm depth includes the arc chamber overhang, so panel depth must accommodate it beyond the DIN-rail mounting foot.","metaTitle":"Siemens 3RT1024-1BM44 SIRIUS Power Contactor, S0 Frame, 7.5","metaDescription":"Siemens SIRIUS 3RT1024-1BM44 power contactor, S0 size, 7.5 kW at 690 V AC-3. Screw terminals, IP20 front, pollution degree 3. Active production, sourced to order.","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":"85 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"220 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","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=505228&mlfb=3RT1024-1BM44","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1BM44/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RT1024-1BM44 rated motor power at 690 V?","answer":"7.5 kW in AC-3 duty at both 500 V and 690 V."},{"question":"What is the depth of the 3RT1024-1BM44?","answer":"150 mm from the DIN-rail mounting face to the front of the arc chamber."},{"question":"What wire sizes does the 3RT1024-1BM44 accept on the main terminals?","answer":"Screw terminals accept 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or a single 10 mm² conductor. AWG equivalents are 2x (16 to 12), 2x (14 to 10), or 1x 8."},{"question":"Where can I buy the 3RT1024-1BM44?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1BM44","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/3RT1024-1BM44 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}}