{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB3026-1QB0-ZW96","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB3026-1QB0-ZW96","canonicalUrl":"https://aoctrl.com/siemens/3RB3026-1QB0-ZW96","factsUrl":"https://aoctrl.com/api/mcp/products/3RB3026-1QB0-ZW96","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RB3026-1QB0-ZW96 solid-state overload relay, S0 size, 25 A thermal current, Class 10E trip, 690 V rated, screw-type terminals, contactor mounting.","salesMarkdown":"## Solid-state overload relay for motor protection The 3RB3026-1QB0-ZW96 is a SIRIUS solid-state overload relay, S0 frame size, rated for a continuous thermal current of 25 A at 690 V — the same current limit applies at 480 V and 600 V, so it covers standard 400 V and 480 V motor circuits without derating. Trip class is CLASS 10E, meaning it will trip within 10 seconds at a locked-rotor current of 7.2× the set current — a standard match for IEC motor starting duty where the thermal model must protect the winding without nuisance tripping during start. The auxiliary contact set is rated for switching at multiple control voltages: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V, and 0.11 A at 220 V — these cover the common control supply rails in North American and European panels. ## Mounting and panel fit Mounts directly onto the contactor via the fastening method — no separate DIN-rail clip needed. The S0 footprint is 45 mm wide, 87 mm high, 84 mm deep, and the mounting position is any orientation, which simplifies layout in crowded enclosures. Main circuit terminals accept screw-type connections: solid wire 1x (0.5–4 mm²) or 2x (0.5–2.5 mm²), and stranded up to 2x 10 mm². The screwdriver spec calls for Pozidriv PZ2 with a 5–6 mm shaft diameter — standard electrician's tooling. ## Environmental and compliance Operates from -25 to +60 °C with temperature compensation across that range, and survives storage and transport from -40 to +80 °C. Vibration resistance: 1–6 Hz at 15 mm amplitude, 6–500 Hz at 20 m/s² for 10 cycles; shock rated at 15g / 11 ms per IEC 60068-2-27. The substance prohibitance date is 10/01/2009 — this is a RoHS compliance marker (the date after which new equipment placed on the EU market must meet RoHS substance limits). No UL or CSA listing appears in the record; confirm site-specific approval requirements at RFQ.","metaTitle":"Siemens 3RB3026-1QB0-ZW96 SIRIUS solid-state overload relay","metaDescription":"Siemens 3RB3026-1QB0-ZW96 SIRIUS solid-state overload relay, 25 A thermal current, Class 10E trip, 690 V rated. S0 size, contactor mount. Quoted to order.","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","title":"3RB3026-1QB0-ZW96","Height":"87 mm","at 24 V":"2 A","at 60 V":"0.55 A","Per Pole":"0.4 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","description":"Overload relay 6...25 A Electronic For motor protection Size S0, class 10E Contactor mounting Main circuit: screw terminal Auxiliary circuit: screw terminal Manual-Automatic-Reset Reusable packaging Pack = 29 units","During Storage":"-40 ... +80 °C","Thermal Current":"25 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":"25 A","at 600 V rated value":"25 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":"25 A","for AC motors at 500 V at 50 Hz":"4 ... 15 kW","for AC motors at 690 V at 50 Hz":"5.5 ... 22 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: 63 A, J: 100 A","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gG: 125 A, RK5: 100 A","for 3-phase motors at 400 V at 50 Hz":"3 ... 11 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":"25 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":"1.2 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"6 ... 25 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/71e996b97c21d96633bfc3a1d2773b06.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=727446&mlfb=3RB3026-1QB0-ZW96"},"ai":{"faq":[{"question":"What does the note 'for message tripped' mean on this relay?","answer":"The note indicates that the auxiliary contact set (terminals 97/98) changes state to signal a 'tripped' condition — it is a normally-open contact that closes when the overload relay has operated, providing a remote fault indication to a PLC or annunciator."},{"question":"What is the depth of the 3RB3026-1QB0-ZW96?","answer":"The depth is 84 mm, measured from the mounting face to the farthest projection — this fits within the standard S0 contactor depth envelope."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB3026-1QB0-ZW96","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/3RB3026-1QB0-ZW96 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}