{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1BG44-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1BG44-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1BG44-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1BG44-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT1024-1BG44-1AA0, screw-type terminals, 45 mm width, 150 mm depth, IP20 front, IP00 terminal.","salesMarkdown":"It mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 50022, occupying a 45 mm width, 85 mm height, and 150 mm depth — a standard S0 footprint that fits existing panel layouts without re-drilling. Rated for AC-2 at 400 V at 5.5 kW and AC-4 at 400 V at 12.5 A, this contactor handles the inrush and breaking demands of slip-ring motors (AC-2) and plugging/inching duty (AC-4). At 690 V it still delivers 7.5 kW, so it can switch a 7.5 kW motor on a 400 V or 690 V line — the same kW rating at both voltages means the current drops at higher voltage, which is typical for a contactor sized by thermal capacity. The auxiliary contact block carries 2 instantaneous contacts rated at 10 A at 24 V, 6 A at 230 V, and 0.3 A at 220 V DC — enough for PLC or relay coil feedback on a 24 VDC control circuit. The magnet coil draws 5.4 W DC closing and holding, so it stays cool in a sealed enclosure and won't overheat a standard 24 VDC power supply. Front protection is IP20 (finger-safe), terminal area is IP00 — the terminals are live when the panel door is open, so standard lockout/tagout applies. ## Integration and wiring — what fits where Screw terminals accept solid conductors 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and max 2x (0.75 to 4 mm²). For stranded: 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), max 2x 10 mm². AWG equivalents: 2x (16 to 12), 2x (14 to 10), 1x 8. That covers most panel wiring from signal-level 0.5 mm² up to motor feeder 6 mm², with a single 10 mm² allowed for a main feed. Side-by-side mounting is allowed with zero side clearance — the 6 mm gap listed is the minimum to adjacent metalwork, not between contactors. Type 1 (contactor may need replacement) allows a 63 A fuse. That gives the panel builder a choice between tighter protection (Type 2) or higher fault-clearing capacity (Type 1) depending on the upstream breaker and the motor circuit.","metaTitle":"Siemens 3RT1024-1BG44-1AA0 SIRIUS S0 Power Contactor, 45 mm","metaDescription":"Siemens SIRIUS S0 power contactor 3RT1024-1BG44-1AA0, screw terminals, 45 mm width, 150 mm depth, IP20 front, active production, available 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":"125 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=183274&mlfb=3RT1024-1BG44-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1BG44-1AA0/alternatives.json"},"ai":{"faq":[{"question":"What wire sizes does the screw terminal accept?","answer":"Solid: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). Stranded: 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), max 2x 10 mm². AWG: 2x (16 to 12), 2x (14 to 10), 1x 8."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1BG44-1AA0","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/3RT1024-1BG44-1AA0 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}}