{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1BB40-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1BB40-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1BB40-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1BB40-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1026-1BB40-ZW95 power contactor, size S0, 24 V DC coil, screw terminals, 45 mm width, 101 mm depth.","salesMarkdown":"The Siemens SIRIUS 3RT1026-1BB40-ZW95 is a size S0 power contactor with a 24 V DC coil, screw-type main terminals, and a 45 mm wide body that snaps onto a 35 mm DIN rail per EN 50022. It's rated for motor switching up to 11 kW in AC-3 duty at both 500 V and 690 V, and handles 15.5 A in AC-4 (reversing or inching) at 400 V. For resistive loads (AC-12), it carries 10 A continuously. The front face is IP20 protected; the terminals themselves are IP00, so keep the panel enclosure sealed against debris. The AC-3 rating of 11 kW at 690 V tells you this contactor handles standard squirrel-cage motors up to that power — starting and stopping under load, no inching. The 24 V DC coil draws 5.4 W closing and 5.4 W holding, so it's a continuous-duty solenoid; no power savings on hold. The main circuit screw terminals accept 2x (0.5 to 1.5 mm²) solid, 2x (0.75 to 2.5 mm²) solid, or max 2x (0.75 to 4 mm²) — that's the fine-wire range. For stranded, they take 2x (1 to 2.5 mm²) or max 2x 10 mm². AWG equivalents: 2x (16 to 12) solid, 2x (14 to 10) stranded, or 1x 8.","metaTitle":"Siemens 3RT1026-1BB40-ZW95 SIRIUS Power Contactor, 24 VDC, S","metaDescription":"Siemens SIRIUS 3RT1026-1BB40-ZW95 power contactor, size S0, 24 VDC coil, 45 mm wide. AC-3 rated 11 kW at 690 V, AC-4 15.5 A at 400 V. 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":"11 kW","at 690 V rated value":"11 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":"11 kW","at AC-4 at 400 V rated value":"15.5 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: 35 A","at AWG conductors for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","With Type Of Coordination 1 Required":"fuse gL/gG: 100 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=463628&mlfb=3RT1026-1BB40-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1BB40-ZW95/alternatives.json"},"ai":{"faq":[{"question":"What are the key motor ratings for this contactor?","answer":"In AC-3 duty (standard motor start/run), it is rated 11 kW at both 500 V and 690 V. In AC-4 duty (reversing/inching), it is rated 15.5 A at 400 V. For resistive loads (AC-12), it carries 10 A."},{"question":"What fuse coordination is required for short-circuit protection?","answer":"For type 2 coordination (no damage to the contactor), use a 35 A gL/gG fuse. For type 1 coordination (contactor may need replacement after fault), a 100 A gL/gG fuse is acceptable."},{"question":"What is the coil voltage and power consumption?","answer":"The coil is rated 24 V DC. Closing power and holding power are both 5.4 W — it is a continuous-duty solenoid with no power reduction on hold."},{"question":"What is the physical size and mounting?","answer":"It is a size S0 contactor, 45 mm wide, 85 mm high, 101 mm deep. It mounts via screw or snap-on onto 35 mm DIN rail per EN 50022. Side-by-side mounting is allowed with 6 mm spacing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1BB40-ZW95","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/3RT1026-1BB40-ZW95 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}}