{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB3026-1SB0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB3026-1SB0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RB3026-1SB0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RB3026-1SB0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB3026-1SB0-ZX95, CLASS 10E, rated thermal current 12 A, size S0, contactor-mount, integrated auxiliary switch with tripped message contact.","salesMarkdown":"The Siemens 3RB3026-1SB0-ZX95 is a SIRIUS solid-state overload relay in size S0, designed to protect AC motor circuits against overload and phase failure. The integrated auxiliary switch provides a dedicated normally-closed contact for the tripped message — meaning the relay signals a fault condition via the 97/98 terminals without needing an external aux block. Rated thermal current (Ithe) is 12 A, and the trip class is CLASS 10E — the relay will trip within 10 seconds at 7.2× the current setting, making it suitable for standard motor starting duty on pumps, fans, and conveyors where the start-up transient is brief. Fastening method is contactor mounting — it clips directly onto a SIRIUS contactor (size S0), saving DIN-rail space and reducing wiring between the relay and the contactor coil. The auxiliary switch is integrated, so no separate aux block is needed for the tripped signal. Screw terminals accept 1x (0.5 to 4 mm²) solid or 2x (0.5 to 2.5 mm²) stranded per pole; main circuit terminals accept up to 2x 10 mm² stranded.","metaTitle":"Siemens 3RB3026-1SB0-ZX95 SIRIUS Solid-State Overload Relay,","metaDescription":"Siemens SIRIUS 3RB3026-1SB0-ZX95 solid-state overload relay, CLASS 10E, rated thermal current 12 A, size S0. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Overload Relays"],"specifications":{"Note":"for message \"tripped\"","Depth":"84 mm","Solid":"1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²)","Width":"45 mm","Height":"87 mm","at 24 V":"2 A","at 60 V":"0.55 A","Per Pole":"0.2 W","Stranded":"2x 10 mm²","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","Trip Class":"CLASS 10E","Rated Value":"690 V","During Storage":"-40 ... +80 °C","Thermal Current":"12 A","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"Contactor mounting","Shock Resistance":"15g / 11 ms","For Main Contacts":"M4","Mounting Position":"any","Solid Or Stranded":"1x (0,5 ... 4 mm²), 2x (0,5 ... 2,5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"solid-state overload relay","Vibration Resistance":"1-6 Hz, 15 mm; 6-500 Hz, 20 m/s²; 10 cycles","at 480 V rated value":"12 A","at 600 V rated value":"12 A","Size Of Overload Relay":"S0","For Main Current Circuit":"screw-type terminals","Temperature Compensation":"-25 ... +60 °C","Design Of Screwdriver Shaft":"Diameter 5 to 6 mm","Size Of The Screwdriver Tip":"Pozidriv PZ 2","according to IEC 60068-2-27":"15g / 11 ms; Signaling contact 97 / 98 in position \"Tripped\": 9g / 11 ms","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2009","Design Of The Auxiliary Switch":"integrated","Design Of The Overload Release":"electronic","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"12 A","for AC motors at 500 V at 50 Hz":"1.5 ... 5.5 kW","for AC motors at 690 V at 50 Hz":"2.2 ... 7.5 kW","For Auxiliary And Control Circuit":"screw-type terminals","Between Main And Auxiliary Circuit":"690 V","Relative Humidity During Operation":"10 ... 95 %","With Type Of Assignment 2 Required":"gG: 50 A, J: 45 A","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gG: 63 A, RK5: 45 A","for 3-phase motors at 400 V at 50 Hz":"1.5 ... 5.5 kW","Of The Auxiliary And Control Contacts":"M3","for AWG cables for auxiliary contacts":"1x (20 ... 14), 2x (20 ... 14)","Between Auxiliary And Auxiliary Circuit":"300 V","due to burst according to IEC 61000-4-4":"2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3","reference code according to IEC 81346-2":"F","Finely Stranded With Core End Processing":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","For Main Contacts With Screw-Type Terminals":"2 ... 2.5 N·m","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","operational current at AC-3e at 400 V rated value":"12 A","Size Of Contactor Can Be Combined Company-Specific":"S0","electrostatic discharge according to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Type Of Voltage Supply Via Input/Output Link Master":"No","contact rating of auxiliary contacts according to UL":"B600 / R300","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 6 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","power loss [W] for rated value of the current at AC in hot operating state":"0.6 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"3 ... 12 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/899319761b95d0aba69a35d3fc6e0d24.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=407395&mlfb=3RB3026-1SB0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB3026-1SB0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the tripped message contact on this relay?","answer":"The integrated auxiliary switch includes a normally-closed contact (terminals 97/98) that changes state when the relay trips, providing a dedicated fault signal without an external aux block."},{"question":"What trip class is the 3RB3026-1SB0-ZX95?","answer":"It is rated CLASS 10E, meaning it will trip within 10 seconds at 7.2× the current setting — standard for general-purpose motor starting."},{"question":"Where can I buy 3RB3026-1SB0-ZX95 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB3026-1SB0-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/3RB3026-1SB0-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}}