{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT6026-1KB40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT6026-1KB40","canonicalUrl":"https://aoctrl.com/siemens/3RT6026-1KB40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT6026-1KB40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT6026-1KB40 coupling contactor, size S0, 45 mm width, 24 VDC coil, screw-type terminals, varistor surge suppression, current production.","salesMarkdown":"The Siemens 3RT6026-1KB40 is a SIRIUS coupling contactor in size S0, designed for switching auxiliary and control circuits where galvanic isolation or signal routing is needed rather than main motor loads. The 24 VDC coil draws 6 A at rated value, so check your control transformer sizing — that's a healthy inrush for a 24 VDC bus. Depth is 151 mm, which is standard for the S0 frame; verify gland plate clearance if your enclosure is shallow.","metaTitle":"Siemens 3RT6026-1KB40 SIRIUS Coupling Contactor, S0, 24 VDC,","metaDescription":"Siemens 3RT6026-1KB40 SIRIUS coupling contactor, size S0, 45 mm wide, screw terminals, 24 VDC coil, varistor suppressor, current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"151 mm","Width":"45 mm","at DC":"1 500 1/h","Height":"85 mm","Rated Value":"24 V","During Storage":"-55 ... +80 °C","at AC-1 maximum":"1 000 1/h","at AC-3 maximum":"750 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022","at AC-3e maximum":"750 1/h","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S0","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Coupling contactor","at 24 V rated value":"6 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":"10 A","at 400 V rated value":"3 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-3 rated value maximum":"690 V","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"10 mm²","at 60 °C minimum permissible":"10 mm²","Design Of The Surge Suppressor":"with varistor","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"13.3 kW","at 400 V at 60 °C rated value":"23 kW","at 690 V at 60 °C rated value":"40 kW","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"No","With Type Of Assignment 2 Required":"gL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 35 A","closing power of magnet coil at DC":"4.5 W","holding power of magnet coil at DC":"4.5 W","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 100 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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)","at ambient temperature 40 °C rated value":"40 A","at ambient temperature 60 °C rated value":"35 A","Type Of Voltage Of The Control Supply Voltage":"DC","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","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":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/28ed0dfb2e385782781bf816eb2cd609.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580202&mlfb=3RT6026-1KB40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT6026-1KB40/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions for panel layout?","answer":"Width is 45 mm, height is 85 mm, depth is 151 mm. This is the standard S0 frame size for Siemens SIRIUS contactors."},{"question":"Does it include a surge suppressor?","answer":"Yes, the design of the surge suppressor is with varistor, integrated into the unit across the coil terminals."},{"question":"What compliance documentation is available?","answer":"The part carries a RoHS compliance date of May 1, 2012. Standard Siemens documentation for CE, UL, and CSA is typically available through the manufacturer's support portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT6026-1KB40","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/3RT6026-1KB40 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}}