{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1024-1BB40-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1024-1BB40-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RT1024-1BB40-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1BB40-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1024-1BB40-ZW98 power contactor, Size S0, 24 VDC coil 5.4 W hold, screw terminals, 45 mm wide, snap-on 35 mm DIN rail.","salesMarkdown":"The Siemens SIRIUS 3RT1024-1BB40-ZW98 is a Size S0 power contactor with a 24 VDC magnet coil drawing 5.4 W for both closing and holding. It switches motor loads in AC-3 duty up to 7.5 kW at 400 V and 500 V, and handles AC-4 reversing duty at 12.5 A. The coil holds at 24 VDC nominal; dropout happens below the listed minimum operating threshold. Accepts solid conductors 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). For stranded or multi-stranded wire, it takes 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. Short-circuit coordination: Type 2 requires a 25 A gL/gG fuse; Type 1 allows up to 63 A gL/gG.","metaTitle":"Siemens 3RT1024-1BB40-ZW98 SIRIUS Power Contactor, 24 VDC Co","metaDescription":"Siemens SIRIUS 3RT1024-1BB40-ZW98 power contactor, Size S0, 24 VDC coil, 45 mm wide, screw terminals, snap-on DIN rail mount. Current production. Sourced to order.","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=395449&mlfb=3RT1024-1BB40-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1024-1BB40-ZW98/alternatives.json"},"ai":{"faq":[{"question":"What are the key contact ratings for this contactor?","answer":"AC-3 motor switching: 7.5 kW at 400 V and 500 V, 7.5 kW at 690 V. AC-4 reversing duty: 12.5 A at 400 V. Resistive load (AC-1): 10 A at 24 V, 6 A at 230 V, 3 A at 400 V. Coil is 24 VDC, 5.4 W hold."},{"question":"What is the physical size and mounting?","answer":"Size S0 frame: 45 mm wide, 85 mm high, 101 mm deep. Mounts via screw or snap-on onto 35 mm DIN rail per EN 50022. Side-by-side mounting allowed with 6 mm gap."},{"question":"What wire sizes does it 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. Screw-type terminals on main circuit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1024-1BB40-ZW98","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-ZW98 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}}