{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB3026-2QE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB3026-2QE0","canonicalUrl":"https://aoctrl.com/siemens/3RB3026-2QE0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB3026-2QE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RB3026-2QE0 solid-state overload relay, Size S0, 25 A thermal current, Trip Class 20E, 690 V rated, spring-loaded terminals, integrated auxiliary contact.","salesMarkdown":"## Solid-state trip with a message output — not just a contact The 3RB3026-2QE0 is a SIRIUS solid-state overload relay that signals a trip condition via a dedicated message output — the note field reads 'for message tripped'. Unlike a bimetallic relay that only opens its NC contact, this relay gives the PLC or HMI a direct trip-annunciation path through the 97/98 signaling contact. Trip Class 20E means the relay allows up to 20 seconds to trip at 7.2× the full-load current setting. This suits high-inertia loads like conveyors, centrifuges, or large fans where the starting transient would nuisance-trip a faster class. ## Current rating and voltage independence Continuous thermal current is 25 A, and the relay holds that same 25 A rating at both 480 V and 600 V. The maximum rated voltage is 690 V, so the relay does not derate across the 480–600 V range — useful for panels that feed both 480 V and 600 V motor branches. Power dissipation per pole is 0.57 W, so three poles running at full current dissipate about 1.7 W total — negligible for the enclosure thermal budget. ## Auxiliary contact ratings across control voltages The integrated signaling contact (97/98) is rated 4 A at 120 V and 3 A at 230 V. At 24 V it handles 2 A, and at 125 V it carries 0.3 A. The 60 V rating is 0.55 A, and at 220 V it drops to 0.11 A. These are the make/break capacities for the trip-indication circuit — match the PLC input or pilot-light load to these limits. ## Mounting and wiring — Size S0, contactor direct-mount Size S0 with contactor-mount fastening means this relay clips directly onto a SIRIUS 3RT2 contactor without separate panel wiring for the power circuit. The main circuit uses spring-loaded terminals accepting 1× 10 mm² stranded or 2× 0.25–1.5 mm² solid. Dimensions are 45 mm wide, 109 mm high, 85 mm deep. Storage and transport range is -40 to +80 °C. Shock resistance is 15 g / 11 ms, and vibration resistance follows 1–6 Hz at 15 mm amplitude, 6–500 Hz at 20 m/s², 10 cycles. Substance prohibitance date is 10/01/2009, confirming RoHS compliance. No stock-holding claim — quantities are confirmed per inquiry.","metaTitle":"Siemens 3RB3026-2QE0 SIRIUS Solid-State Overload Relay","metaDescription":"Siemens 3RB3026-2QE0 SIRIUS solid-state overload relay, Size S0, 25 A thermal current, Trip Class 20E, 690 V rated. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Overload Relays"],"specifications":{"Note":"for message \"tripped\"","Depth":"85 mm","Solid":"2x (0.25 ... 1.5 mm²)","Width":"45 mm","title":"3RB3026-2QE0","Height":"109 mm","at 24 V":"2 A","at 60 V":"0.55 A","Per Pole":"0.57 W","Stranded":"1x 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 20E","Rated Value":"690 V","description":"Overload relay 6...25 A Electronic For motor protection Size S0, Class 20 Contactor mounting Main circuit: Spring-type terminal Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset","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","Mounting Position":"any","Solid Or Stranded":"2x (0,25 ... 1,5 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":"spring-loaded 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":"spring-loaded 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","for AWG cables for auxiliary contacts":"1x (24 ... 16), 2x (24 ... 16)","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":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Finely Stranded Without Core End Processing":"2x (0.25 ... 1.5 mm²)","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","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":"1.7 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/7c5f96e5de5c58e93f5de9379207cec7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=429759&mlfb=3RB3026-2QE0"},"ai":{"faq":[{"question":"What does the note 'for message tripped' mean on this relay?","answer":"The note indicates the relay is designed to signal a trip condition via a dedicated message output — the 97/98 signaling contact closes or opens to tell the PLC or HMI that the overload has tripped, rather than just interrupting the contactor coil circuit."},{"question":"What is the closest functional second-source for 3RB3026-2QE0?","answer":"The peer MPNs listed (6ES7214-1BG40-0XB0, 6ED1052-1MD08-0BA1, 6AG1052-2FB08-7BA1) are from different Siemens product families — a PLC, a logic module, and a SIPLUS variant — not overload relays."},{"question":"How do I get current pricing and availability for 3RB3026-2QE0?","answer":"Submit an RFQ through the storefront. The relay is sourced through independent distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB3026-2QE0","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/3RB3026-2QE0 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}}