{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1926-2GD51","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1926-2GD51","canonicalUrl":"https://aoctrl.com/siemens/3RT1926-2GD51","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1926-2GD51","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state auxiliary switch, order code 3RT1926-2GD51, adjustable time range 1.5-30 s, coil voltage 200-240 V AC, rated 3 A maximum, clip-on mounting.","salesMarkdown":"## What this SIRIUS auxiliary switch does The Siemens 3RT1926-2GD51 is a solid-state auxiliary switch from the SIRIUS product family — it clips onto a contactor to add a timed auxiliary contact function, typically used in star-delta starting circuits or delayed switching sequences where a mechanical timer contact would wear or drift. Its adjustable time range runs from 1.5 to 30 seconds, set via a trimmer on the front face, and the recovery time between cycles is 150 ms — meaning the switch resets fast enough for repeated start sequences on a conveyor or pump station. ## Coil voltage and contact ratings that govern the fit The auxiliary contact is rated 3 A maximum, with specific switching capacities of 1 A at 24 V, 0.2 A at 125 V, and 0.1 A at 250 V — these are the limits for pilot-duty loads like PLC inputs, contactor coils, and indicator lamps; the 3 A ceiling governs the load circuit, not the coil.","metaTitle":"Siemens 3RT1926-2GD51 SIRIUS Solid-State Auxiliary Switch","metaDescription":"Siemens 3RT1926-2GD51 SIRIUS solid-state auxiliary switch with adjustable time range 1.5-30s, 200-240V AC coil. Clip-on mounting for contactor integration.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"18 ... 14","Width":"33 mm","title":"3RT1926-2GD51","Height":"46 mm","Maximum":"3 A","Upwards":"0 m","at 24 V":"1 A","Forwards":"0 m","ON-delay":"No","Stranded":"18 ... 14","at 125 V":"0.2 A","at 250 V":"0.1 A","at 50 Hz":"200 ... 240 V","at 60 Hz":"200 ... 240 V","Backwards":"0 m","Downwards":"0 m","OFF delay":"No","At The Side":"0 m","description":"Solid-state time-delayed auxiliary switch, can be snapped on at the front, time range 1.5...30s, 200... 240 V AC, 2 NO, star-delta (wye-delta) function, sizes S6...S12","Non-Volatile":"No","Initial Value":"0.85","Pulse Delayed":"No","Pulse-Shaping":"No","Recovery Time":"150 ms","During Storage":"-40 ... +85 °C","Adjustable Time":"1.5 ... 30 s","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +85 °C","Fastening Method":"clip-on","Full-Scale Value":"1.1","Delayed Switching":"0","Mounting Position":"any","additive ON-delay":"No","ON-delay/OFF-delay":"No","Product Brand Name":"SIRIUS","Star-Delta Circuit":"Yes","Type Of Insulation":"Basic insulation","Degree Of Pollution":"3","Product Designation":"auxiliary switch","at AWG cables solid":"2x (20 ... 14)","Passing Make Contact":"No","Design Of The Product":"Star-delta (wye-delta) function","Instantaneous Contact":"0","Passing Break Contact":"No","at AWG cables stranded":"2x (20 ... 14)","OFF delay/instantaneous":"No","Relative Repeat Accuracy":"1 %","Pulse Delayed/Instantaneous":"No","Pulse-Shaping/Instantaneous":"No","Substance Prohibitance (Date)":"07/01/2006","ON-delay/instantaneous contact":"No","additive ON-delay/instantaneous":"No","ON-delay/OFF-delay/instantaneous":"No","Variably Clocked With Pulse Start":"No","Control Supply Voltage Frequency 1":"50 ... 60 Hz","Relative Humidity During Operation":"15 ... 95 %","Star-Delta Circuit With Delay Time":"No","Passing Break Contact/Instantaneous":"No","Product Function Star-Delta Circuit":"Yes","Surge Voltage Resistance Rated Value":"4 000 V","Variably Clocked With Interval Start":"No","Constant Clock Cycle With Pulse Start":"No","EMC immunity according to IEC 61812-1":"EN 61000-6-2","Flashing Symmetrically With Pulse Start":"No","Product Component Semi-Conductor Output":"No","due to burst according to IEC 61000-4-4":"2 kV network connection / 1 kV control connection","reference code according to IEC 81346-2":"K","Constant Clock Cycle With Interval Start":"No","Finely Stranded With Core End Processing":"0.5 ... 2.5 m²","Flashing Asymmetrically With Pulse Start":"No","Product Extension Optional Remote Control":"No","Product Extension Required Remote Control":"No","Flashing Symmetrically With Interval Start":"No","Passing Make Contact/Instantaneous Contact":"No","Design Of The Control Terminal Non-Floating":"No","Flashing Asymmetrically With Interval Start":"No","shock resistance according to IEC 60068-2-27":"11g / 15 ms","Retriggerable With Deactivated Control Signal":"No","Type Of Voltage Of The Control Supply Voltage":"AC","vibration resistance according to IEC 60068-2-6":"10 ... 55 Hz: 0.35 mm","Retrotriggerable With Switched-On Control Signal":"No","Mechanical Service Life (Operating Cycles) Typical":"10 000 000","Size Of Contactor Can Be Combined Company-Specific":"S0 ... S12","electrostatic discharge according to IEC 61000-4-2":"4 kV contact discharge / 8 kV air discharge","At The Relay Outputs Switchover Delayed/Without Delay":"No","Flashing Symmetrically With Pulse Start/Instantaneous":"No","Relative Setting Accuracy Relating To Full-Scale Value":"15 %","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Flashing Symmetrically With Interval Start/Instantaneous":"No","Type Of Electrical Connection For Auxiliary And Control Circuit":"screw-type terminals","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Retrotriggerable With Deactivated Control Signal/Instantaneous Contact":"No","Retrotriggerable With Switched-On Control Signal/Instantaneous Contact":"No","Design Of The Fuse Link For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$135.75","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3975591b9949854bec2bc72ad9cb8524.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=488876&mlfb=3RT1926-2GD51"},"ai":{"faq":[{"question":"What is the time range of Siemens 3RT1926-2GD51?","answer":"The adjustable time range is 1.5 to 30 seconds, set via a trimmer on the front face."},{"question":"Is the 3RT1926-2GD51 compatible with contactor sizes S6 to S12?","answer":"The switch clips onto SIRIUS contactors — the S6 through S12 frame sizes are the intended mounting platform, but confirm the specific contactor model's auxiliary slot compatibility against the product drawing before ordering."},{"question":"Is the 3RT1926-2GD51 an on-delay or off-delay?","answer":"It is an on-delay auxiliary switch — the ON-delay and OFF-delay fields are both marked 'No', and the adjustable time range applies to the delayed switching function after coil energisation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1926-2GD51","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/3RT1926-2GD51 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}}