{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1926-2ED31","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1926-2ED31","canonicalUrl":"https://aoctrl.com/siemens/3RT1926-2ED31","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1926-2ED31","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary switch, 3RT1926-2ED31, ON-delay adjustable 5…100 s, 200…240 V AC coil, 3 A max contacts, clip-on mounting.","salesMarkdown":"## Time-delay auxiliary switch for SIRIUS contactors The 3RT1926-2ED31: It clips onto the front of a SIRIUS contactor, so there's no extra DIN-rail space or wiring needed beyond the contactor's own terminals. The switch contacts are rated for 3 A maximum, and at 24 V they handle 1 A. The 3 A maximum contact rating is the absolute ceiling — at 250 V AC the contacts are rated 0.1 A, at 125 V it's 0.2 A. That's typical for a signal-level auxiliary block driving a PLC input or a smaller relay coil, not a power circuit. The adjustable delay (5…100 s) lets you sequence a starter or interlock without a separate timer module — useful when you need a staggered motor start or a purge delay before the main contactor pulls in. The recovery time is 150 ms, so after the delay expires and the contacts reset, you can re-trigger the timer after that window. ## Mounting and wiring in the panel It clips directly onto a SIRIUS contactor — no tools, no extra DIN-rail footprint. Terminals accept 2x solid or stranded AWG 20…14 — standard control wiring. The housing is 33 mm wide, 46 mm tall, 73 mm deep, so it adds about 33 mm to the contactor's width. Basic insulation and pollution degree 3 mean it's rated for the usual industrial panel environment, but not for direct line-voltage isolation. Current-production status per the manufacturer's record. No official successor or cross-reference on file.","metaTitle":"Siemens 3RT1926-2ED31 SIRIUS auxiliary switch","metaDescription":"Siemens 3RT1926-2ED31 SIRIUS auxiliary switch with adjustable ON-delay 5…100 s, rated 3 A max, 200…240 V AC coil. Clip-on for SIRIUS contactors.","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":"3RT1926-2ED31","Height":"46 mm","Maximum":"3 A","Upwards":"0 m","at 24 V":"1 A","Forwards":"0 m","ON-delay":"Yes","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 front-side auxiliary switch Time range 5...100 s, 200... 240 V AC, 1 NO contact, 1 NC contact ON delay, for 3RT1","Non-Volatile":"No","Initial Value":"0.85","Pulse Delayed":"No","Pulse-Shaping":"No","Recovery Time":"150 ms","During Storage":"-40 ... +85 °C","Adjustable Time":"5 ... 100 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":"No","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":"slow-operating","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":"No","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 (Switching 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":"$40.64","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/817303c49409d1ade6750940387091d9.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=274773&mlfb=3RT1926-2ED31"},"ai":{"faq":[{"question":"What are the time delay settings for Siemens 3RT1926-2ED31?","answer":"The adjustable ON-delay is set from 5 to 100 s. After the delay expires and the contacts reset, the recovery time is 150 ms before the timer can be re-triggered."},{"question":"Is 3RT1926-2ED31 obsolete or is there a replacement?","answer":"The manufacturer's record shows current-production status. No official replacement or cross-reference is on file."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1926-2ED31","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/3RT1926-2ED31 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}}