{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1BB44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1BB44","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1BB44","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1BB44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT1024-1BB44, 24 VDC coil, 10 A AC-12 operational current, screw-type terminals, IP20 front, 45 mm wide.","salesMarkdown":"The 3RT1024-1BB44: The 10 A AC-12 rating covers resistive loads and control-circuit switching — this is the maximum continuous current the main contacts can carry in that duty. For motor loads, the contactor is rated at 7.5 kW at 400 V and 690 V (AC-3, 3-phase induction motors). Coil switching capacity across DC voltages: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V. These are the auxiliary contact ratings for DC circuits — useful when the contactor's own auxiliaries switch DC loads like PLC inputs or indicator lamps. Side-by-side mounting is permitted, so several contactors can line up without spacing gaps — useful when packing multiple motor starters into a panel. Main circuit terminals accept solid/stranded conductors: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²). Auxiliary terminals accept 2x (1–2.5 mm²) and 2x (2.5–6 mm²), max 2x 10 mm². All are screw-type terminals, so a standard Pozidriv or flathead driver is all that's needed for termination. ## Environmental and coordination For type 2 coordination (the contactor remains usable after clearing the fault), the required fuse is gL/gG 25 A.","metaTitle":"Siemens 3RT1024-1BB44 SIRIUS S0 Power Contactor, 24 VDC Coil","metaDescription":"Siemens SIRIUS 3RT1024-1BB44 S0 power contactor, 24 VDC coil, 10 A AC-12 operational current. Current production. Screw terminals, DIN rail mount. Quoted 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","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.8","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.1","Size Of Contactor":"S0","Solid Or Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","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","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"12.5 A","Substance Prohibitance (Date)":"01.07.2006 00:00:00","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","closing power of magnet coil at DC":"5.4 W","holding power of magnet coil at DC":"5.4 W","reference code acc. to IEC 81346-2":"Q","With Type Of Coordination 1 Required":"fuse gL/gG: 63 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Type Of Voltage Of The Control Supply Voltage":"DC","Required Spacing For Grounded Parts At The Side":"6 mm","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","Of The Contactor With Added Electronically Optimized 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=103835&mlfb=3RT1024-1BB44","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1BB44/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 3RT1024-1BB44 and how is it quoted?","answer":"The 3RT1024-1BB44 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional alternative to the 3RT1024-1BB44?","answer":"The 3RT1015-1BB42 is a smaller S00-frame contactor with a 24 VDC coil. It shares the same coil voltage but has lower current ratings and a different mounting footprint — it will not drop into a panel wired for the S0 frame without rewiring and possibly a different DIN rail adapter."},{"question":"What compliance documentation does the 3RT1024-1BB44 carry?","answer":"The part is RoHS compliant with a substance prohibition date of 01 July 2006. The reference code per IEC 81346-2 is Q. The manufacturer's standard documentation package includes the datasheet, CE declaration of conformity, and material declarations upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1BB44","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/3RT1024-1BB44 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}}