{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2026-1SB0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2026-1SB0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RB2026-1SB0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2026-1SB0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2026-1SB0-ZX95, Class 10E trip, contactor mounting, 45 mm wide, ATEX Ex II (2) GD.","salesMarkdown":"The Siemens 3RB2026-1SB0-ZX95 is a SIRIUS solid-state overload relay — it protects motors from sustained overcurrent by tripping on a Class 10E curve, meaning it will open the contactor within 10 seconds at 7.2x the set current. That's the standard trip class for standard-start induction motors driving pumps, fans, and conveyors where the start time stays under 10 seconds. It mounts directly onto a contactor (contactor mounting), saving DIN rail space and keeping the power wiring short. The main circuit terminals accept solid conductors from 0.5 to 4 mm², or two conductors 0.5 to 2.5 mm² each — enough for the control wiring on most motor starters up to the relay's rated voltage of 690 V AC-3. The ATEX approval (PTB 06 ATEX 3001 Ex II (2) GD) means it's certified for use in potentially explosive gas and dust atmospheres — Zone 1/2 gas and Zone 21/22 dust, as a associated apparatus mounted outside the hazardous area but controlling equipment inside it. That's a compliance gate for chemical, oil & gas, and grain-handling installations. ## Integration constraints Side clearance to adjacent devices is 6 mm minimum; no clearance needed above, below, forward, or backward (0 mm). Shock rated at 15g for 11 ms — robust for machine-mounted panels on presses or conveyors. Humidity tolerance is 100% RH during operation, so condensation inside a non-condensing enclosure is fine. EMC immunity includes surge voltage withstand at 6 kV and burst transients at 2 kV on power ports, 1 kV on signal ports (severity level 3 per IEC 61000-4-4). That's the standard industrial immunity level — no special filtering needed for most factory-floor environments. The relay provides no built-in auxiliary contacts (0 auxiliary contacts). All status signaling must come from an external auxiliary contact block or the contactor's own aux. The solid-state output is rated for switching: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V, and 0.55 A at 60 V, 0.3 A at 110/125 V, 0.11 A at 220 V.","metaTitle":"Siemens 3RB2026-1SB0-ZX95 SIRIUS solid-state overload relay,","metaDescription":"Siemens SIRIUS 3RB2026-1SB0-ZX95 solid-state overload relay. Class 10E trip, contactor-mount, ATEX Ex II (2) GD. 45 mm wide, 75 mm deep. Sourced to order.","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","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","with degree of pollution 3 at AC rated value":"690 V","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":"3 ... 12 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=365292&mlfb=3RB2026-1SB0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2026-1SB0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does this part carry?","answer":"It carries ATEX certification PTB 06 ATEX 3001 Ex II (2) GD for hazardous area use. EMC immunity is specified to IEC 61000-4-4 and IEC 61000-4-5 (surge). The manufacturer's standard declarations (CE, UKCA, RoHS, REACH) apply as a SIRIUS series product."},{"question":"What is the physical size of this overload relay?","answer":"45 mm wide, 73 mm high, 75 mm deep — fits a standard 45 mm modular slot. Side clearance to adjacent devices is 6 mm; no clearance needed in other directions."},{"question":"What wire sizes does the main circuit accept?","answer":"Solid conductors 0.5 to 4 mm², or two conductors 0.5 to 2.5 mm² each. Finely stranded with ferrule: 0.5 to 2.5 mm², or two 0.5 to 1.5 mm². AWG equivalent: 2x 14 to 10 AWG for main contacts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2026-1SB0-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/3RB2026-1SB0-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}}