{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB3026-2PE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB3026-2PE0","canonicalUrl":"https://aoctrl.com/siemens/3RB3026-2PE0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB3026-2PE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB3026-2PE0, CLASS 20E, rated 690 V, 4 A thermal current, spring-loaded terminals, S0 size, contactor-mount.","salesMarkdown":"The Siemens 3RB3026-2PE0 is a SIRIUS solid-state overload relay, size S0, designed to protect motors against overcurrent and phase loss. It uses an electronic overload release with CLASS 20E trip curve, meaning it allows a 20-second cold-start overload before tripping — standard for standard-duty induction motors driving pumps, fans, and conveyors. Rated for operational voltages up to 690 V and a thermal current of 4 A (at 480 V and 600 V rated value), this relay covers smaller motor loads in the S0 frame. The spring-loaded terminals accept 2x (0.25 to 1.5 mm²) solid or stranded wire, with a single 10 mm² stranded conductor option for the main circuit. Any mounting position is permitted, and the relay includes an integrated auxiliary switch with signaling contact 97/98 that changes state on trip. The auxiliary switch carries rated values of 4 A at 120 V AC, 3 A at 230 V AC, and 2 A at 24 V DC — enough to drive a PLC input or indicator lamp directly. Shock resistance is 15g / 11 ms per IEC 60068-2-27, with the signaling contact derated to 9g / 11 ms in the tripped position.","metaTitle":"Siemens 3RB3026-2PE0 SIRIUS solid-state overload relay, CLAS","metaDescription":"Siemens SIRIUS 3RB3026-2PE0 solid-state overload relay, CLASS 20E, rated 690 V, 4 A thermal current. Spring-loaded terminals, S0 size, contactor-mount. Current 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","Height":"109 mm","at 24 V":"2 A","at 60 V":"0.55 A","Per Pole":"0.03 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","During Storage":"-40 ... +80 °C","Thermal Current":"4 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":"4 A","at 600 V rated value":"4 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":"4 A","for AC motors at 500 V at 50 Hz":"0.37 ... 2.2 kW","for AC motors at 690 V at 50 Hz":"0.55 ... 3 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: 20 A","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gG: 35 A, RK5: 15 A","for 3-phase motors at 400 V at 50 Hz":"0.37 ... 1.5 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":"4 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":"0.1 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"1 ... 4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f6e06e19134c2a1c0bde1d2e904b6344.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=533859&mlfb=3RB3026-2PE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB3026-2PE0/alternatives.json"},"ai":{"faq":[{"question":"What does the note 'for message tripped' mean on this relay?","answer":"The note indicates the relay's signaling contact (terminals 97/98) changes state when the overload trips, providing a discrete message to a PLC or indicator. It is not a continuous status output — it only signals the tripped condition."},{"question":"What are the key ratings for the 3RB3026-2PE0?","answer":"Rated operational voltage 690 V, thermal current 4 A, CLASS 20E trip curve. Auxiliary switch ratings: 4 A at 120 V AC, 3 A at 230 V AC, 2 A at 24 V DC. Dimensions: 45 mm width, 109 mm height, 85 mm depth."},{"question":"Will the 3RB3026-2PE0 fit a panel designed for a 3RT1016-2AP02 contactor?","answer":"The 3RB3026-2PE0 is a size S0 overload relay designed to mount directly onto S0 contactors. The 3RT1016-2AP02 is also an S0 frame contactor, so the relay will physically mount and wire into the same DIN-rail footprint without panel modifications."},{"question":"What compliance documentation does this relay carry?","answer":"The relay has a substance prohibitance compliance date of 10/01/2009, covering RoHS and REACH requirements. As a Siemens SIRIUS product, it also carries CE marking for the European market and is designed to IEC 60068-2-27 for shock resistance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB3026-2PE0","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/3RB3026-2PE0 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}}