{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-3BB40-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-3BB40-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-3BB40-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3BB40-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT1026-3BB40-ZX95, 24 VDC coil, screw-type terminals, snap-on DIN rail mounting, IP20 front.","salesMarkdown":"Coil is 24 VDC, pulling 5.4 W on close and holding at the same 5.4 W — a constant-power magnet circuit, so no inrush spike to size your DC supply around. Rated for AC-2 duty at 11 kW / 400 V (slip-ring motor starting) and AC-4 at 15.5 A / 400 V (plugging/inching). For fixed-speed squirrel-cage motors, the AC-3 rating is the one that governs — the part switches 11 kW at both 500 V and 690 V, so it covers 400 V class motors comfortably with headroom. Width is 45 mm, height 85 mm, depth 100 mm — fits the standard S0 footprint. Side-by-side mounting is allowed (zero gap), so you can pack a row of these on the rail without derating for heat buildup, provided the ambient stays within the -25 to +60 °C window. Main contact terminals accept 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or max 2x 10 mm² stranded — or AWG equivalents 2x (16 to 12), 2x (14 to 10), 1x 8. Solid wire range is 2x (0.25 to 2.5 mm²). Strip and torque per the terminal marking; no ferrule required for stranded if the strands are twisted. ## Short-circuit coordination That's the selectivity window the panel designer needs to match to the branch circuit protection. ## Auxiliary contact switching The built-in auxiliary contacts handle 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 2 A at 60 V — covering typical PLC input and relay coil loads across common control voltages. At 110 V it's 1 A; at 220 V it's 0.3 A.","metaTitle":"Siemens 3RT1026-3BB40-ZX95 SIRIUS S0 Power Contactor, 24 VDC","metaDescription":"Siemens 3RT1026-3BB40-ZX95 SIRIUS S0 power contactor. 24 VDC coil, screw terminals, DIN rail mount. AC-2/AC-4 motor ratings at 400 V. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"100 mm","Solid":"2x (0.25 ... 2.5 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 (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"40 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","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=214820&mlfb=3RT1026-3BB40-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3BB40-ZX95/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT1026-3BB40-ZX95?","answer":"Submit an RFQ through this listing. The part is sourced through independent distribution; pricing and stock are confirmed at quote time."},{"question":"What is 3RT1026-3BB40-ZX95's listed depth?","answer":"Depth is 100 mm, width 45 mm, height 85 mm — standard S0 contactor footprint."},{"question":"What compliance documentation does this brand provide for 3RT1026-3BB40-ZX95?","answer":"The part carries reference code Q per DIN EN 81346-2 and is rated for pollution degree 3. Standard Siemens SIRIUS documentation includes RoHS and REACH declarations; UL and IEC certifications are typical for the series but should be verified against the specific variant's nameplate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-3BB40-ZX95","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/3RT1026-3BB40-ZX95 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}}