{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2026-1QB0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2026-1QB0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RB2026-1QB0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2026-1QB0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2026-1QB0-ZX95, CLASS 10E, contactor mounting, ATEX Ex II (2) GD, IP20 front, screw terminals.","salesMarkdown":"The Siemens 3RB2026-1QB0-ZX95 is a SIRIUS solid-state overload relay — CLASS 10E trip curve, contactor-mount form factor, and ATEX Ex II (2) GD approval for potentially explosive atmospheres. It's rated for a 690 V AC-3 main circuit with screw-type terminals accepting 0.5 to 4 mm² solid or 2x 0.5 to 2.5 mm² stranded. The front face carries IP20; the relay itself mounts directly onto a contactor, saving DIN-rail space. ## Trip class and thermal behaviour The solid-state design keeps power dissipation low: 0.05 W total at AC in hot operating state, or 0.02 W per pole. That's negligible heat for a panel; no derating for adjacent devices needed. Contactor mounting — clips onto the matching SIRIUS contactor without extra brackets. The relay body is 45 mm wide, 73 mm tall, 75 mm deep. Clearance to adjacent devices: 0 mm upwards, forwards, backwards, and downwards; 6 mm to the side. That zero-gap on four sides means you can pack relays tight in a row. Mounting position is any orientation. Rated for 100 % relative humidity during operation — no condensation limit to watch. Shock resistance is 15g / 11 ms. Surge voltage withstand is 6 kV, with burst immunity per IEC 61000-4-4 severity 3 (2 kV on power ports, 1 kV on signal ports). Pollution degree 3 rated for 690 V.","metaTitle":"Siemens 3RB2026-1QB0-ZX95 SIRIUS solid-state overload relay,","metaDescription":"Siemens 3RB2026-1QB0-ZX95 SIRIUS solid-state overload relay, CLASS 10E trip, contactor-mount, ATEX Ex II (2) GD, IP20 front. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"75 mm","Solid":"0.5 ... 4 mm², 2x (0.5 ... 2.5 mm²)","Width":"45 mm","Height":"73 mm","Maximum":"2 000 m","Upwards":"0 mm","at 24 V":"2 A","at 60 V":"0.55 A","Forwards":"0 mm","at 110 V":"0.3 A","at 120 V":"4 A","at 125 V":"0.3 A","at 220 V":"0.11 A","at 230 V":"3 A","Backwards":"0 mm","Downwards":"0 mm","Trip class":"CLASS 10E","At The Side":"6 mm","On The Front":"IP20","Mounting type":"Contactor mounting","During Storage":"-40 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Shock resistance":"15g / 11 ms","Mounting position":"any","Product brand name":"SIRIUS","Type of protection":"PTB 06 ATEX 3001 Ex II (2) GD","Product designation":"solid-state overload relay","For Auxiliary Contacts":"0","For Main Current Circuit":"screw-type terminals","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"0.05 W","Relative humidity during operation":"100 %","due to burst acc. to IEC 61000-4-4":"2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3","at AWG conductors for main contacts":"2x (14 ... 10)","Surge voltage resistance rated value":"6 kV","Reference code acc. to DIN EN 81346-2":"F","at AC in hot operating state per pole":"0.02 W","With Degree Of Pollution 3 Rated Value":"690 V","Finely Stranded With Core End Processing":"0.5 ... 2.5 mm², 2x (0.5 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (20 ... 14)","For Auxiliary And Control Current Circuit":"screw-type terminals","Number of NC contacts for auxiliary contacts":"1","Number of NO contacts for auxiliary contacts":"1","Electrostatic discharge acc. to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Size of contactor can be combined company-specific":"S0","due to conductor-earth surge acc. to IEC 61000-4-5":"2 kV (line to earth) corresponds to degree of severity 3","Removable Terminal For Auxiliary And Control Circuit":"Yes","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 6 A","Adjustable pick-up value current of the current-dependent overload release":"6 ... 25 A"}},"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=408836&mlfb=3RB2026-1QB0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2026-1QB0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RB2026-1QB0-ZX95?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time from independent distribution channels."},{"question":"What is the depth of 3RB2026-1QB0-ZX95?","answer":"The depth is 75 mm."},{"question":"What conductor cross-section does 3RB2026-1QB0-ZX95 accept?","answer":"Screw terminals accept 0.5 to 4 mm² solid, or 2x 0.5 to 2.5 mm² stranded."},{"question":"What compliance documentation does Siemens provide for this overload relay?","answer":"The part carries ATEX certification PTB 06 ATEX 3001 Ex II (2) GD, and is rated for pollution degree 3 at 690 V. RoHS and REACH declarations are standard Siemens documentation available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2026-1QB0-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/3RB2026-1QB0-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}}