{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1BB40-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1BB40-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1BB40-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1BB40-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, size S0 power contactor, 3RT1024-1BB40-ZW97, 24 VDC coil, 10 A AC-12, screw terminals, 45 mm wide, IP20 front, current production.","salesMarkdown":"The Siemens SIRIUS 3RT1024-1BB40-ZW97 is a size S0 power contactor rated for 24 VDC coil control, delivering 10 A in AC-12 duty (resistive loads) and switching motor loads up to 5.5 kW under AC-2 at 400 V. The 24 VDC coil draws 10 A at rated value and holds at 5.4 W; dropout occurs below the minimum holding threshold, so verify your control supply stays above 18 V under load. For motor switching, the AC-2 rating of 5.5 kW at 400 V covers slip-ring motors and moderate-duty starts, while the AC-4 rating of 12.5 A at 400 V handles reversing and inching duty. At 500 V and 690 V the contactor is rated for 7.5 kW each, which is useful for 690 V delta-connected motors in European installations. The screw terminals accept 2x 0.5–1.5 mm² solid or 2x 0.75–2.5 mm² stranded, with a maximum of 2x 4 mm² solid for the main circuit — useful when paralleling conductors for higher ampacity.","metaTitle":"Siemens 3RT1024-1BB40-ZW97 SIRIUS S0 Power Contactor, 24 VDC","metaDescription":"Siemens SIRIUS 3RT1024-1BB40-ZW97 power contactor, size S0, 24 VDC coil, 10 A AC-12, 5.5 kW AC-2 at 400 V. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"101 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":"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":"0","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=168598&mlfb=3RT1024-1BB40-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1BB40-ZW97/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1024-1BB40-ZW97 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"When sourcing 3RT1024-1BB40-ZW97, what is the closest functional alternative — 3RT1023-1AL20?","answer":"The 3RT1023-1AL20 is a smaller S0 frame with a 230 V AC coil, so it will not drop into a panel wired for 24 VDC without a coil voltage change. The 3RT1024-1BB40-ZW97 is the correct 24 VDC variant for that footprint."},{"question":"What is 3RT1024-1BB40-ZW97's listed depth?","answer":"The depth is 101 mm, with a width of 45 mm and height of 85 mm, fitting standard 35 mm DIN rail enclosures."},{"question":"Will 3RT1024-1BB40-ZW97 drop into a panel specified around 3RT1023-1AL20 without rewiring?","answer":"No — the coil voltage differs (24 VDC vs 230 V AC), so the control circuit must be rewired. The mechanical footprint and terminal layout are the same S0 size, so the panel cutout and DIN rail position are compatible."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1BB40-ZW97","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/3RT1024-1BB40-ZW97 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}}