{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2831-2DG10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2831-2DG10","canonicalUrl":"https://aoctrl.com/siemens/3RA2831-2DG10","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2831-2DG10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2831-2DG10 function module, ON-delay, adjustable time 0.05-100 s, control supply voltage 24-90 V AC/DC, clip-on mounting, 45 x 38 x 74 mm.","salesMarkdown":"## Active production — what that means for your BOM line The 3RA2831-2DG10: The adjustable time range spans 0.05 to 100 s, with a recovery time of 50 ms between cycles. That covers most start-delay and sequencing applications in motor control — pump lead-lag, conveyor staging, compressor unload timing. ## Control voltage and mounting — no surprises Accepts 24 to 90 V AC/DC on the control supply — works across 24 VDC control systems and 48-90 VAC pilot circuits common in North American and European panels. The module snaps onto the contactor via clip-on fastening; no DIN rail slot consumed, no extra wiring terminals. Storage and transport range extends to -40 to +85 °C. Pollution degree 3 with basic insulation — suitable for standard industrial control panels without special derating. ## Dimensions and panel fit The module measures 45 mm wide, 38 mm high, 74 mm deep — it adds about 45 mm to the contactor width when clipped on the side. The zero-clearance mounting clearances (0 mm upwards, downwards, forwards, backwards, and sideways) mean it can sit tight against panel walls or adjacent components without derating. Wire termination accepts solid or stranded 20-14 AWG (2x conductors per terminal). The AWG range covers standard motor control wiring — 14 AWG for control power runs, 18 AWG for signal wiring.","metaTitle":"Siemens 3RA2831-2DG10 SIRIUS function module","metaDescription":"Siemens 3RA2831-2DG10 SIRIUS function module, ON-delay adjustable 0.05-100 s, 24-90 V AC/DC, clip-on mounting. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"74 mm","Solid":"20 ... 14","Width":"45 mm","at DC":"24 ... 90 V","title":"3RA2831-2DG10","Height":"38 mm","Upwards":"0 mm","Forwards":"0 mm","ON-delay":"Yes","Stranded":"20 ... 14","at 50 Hz":"24 ... 90 V","at 60 Hz":"24 ... 90 V","Backwards":"0 mm","Downwards":"0 mm","OFF delay":"No","At The Side":"0 mm","description":"electronic timing relay, ON-delay, with semiconductor output, time range 0.05-100 s, 24-90 V AC/DC, 50/60 Hz, varistor for attenuation of the contactor coils integrated, spring-loaded terminal, can be snapped on at the front on contactors 3RT2.3 / 3RT2.4","Non-Volatile":"No","Initial Value":"0.85","Pulse Delayed":"No","Pulse-Shaping":"No","Recovery Time":"50 ms","During Storage":"-40 ... +85 °C","Adjustable Time":"0.05 ... 100 s","Type Of Voltage":"AC/DC","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +85 °C","Fastening Method":"clip-on","Full-Scale Value":"1.1","Delayed Switching":"1","Mounting Position":"any (like contactor)","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":"function module","Passing Make Contact":"No","for AWG cables solid":"2x (20 ... 14)","Passing Break Contact":"No","Power Supply Influence":"±1 %","OFF delay/instantaneous":"No","for AWG cables stranded":"2x (20 ... 14)","Relative Repeat Accuracy":"1 %","consumed current at 24 V":"24 mA","Pulse Delayed/Instantaneous":"No","Pulse-Shaping/Instantaneous":"No","Substance Prohibitance (Date)":"10/01/2009","Design Of The Surge Suppressor":"with varistor","ON-delay/instantaneous contact":"No","Test Voltage For Isolation Test":"1.5 kV","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":"0 ... 95 %","Star-Delta Circuit With Delay Time":"No","Passing Break Contact/Instantaneous":"No","Product Function Star-Delta Circuit":"No","Test Voltage For Surge Voltage Test":"4 800 V","protection class IP of the terminal":"IP20","Surge Voltage Resistance Rated Value":"4 kV","Variably Clocked With Interval Start":"No","with contactor 3R.2 of frame size S2":"5 000 000","with contactor 3R.2 of frame size S3":"3 000 000","Constant Clock Cycle With Pulse Start":"No","EMC immunity according to IEC 61812-1":"Environment A (industrial area)","Flashing Symmetrically With Pulse Start":"No","Product Component Semi-Conductor Output":"Yes","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 mm²","Flashing Asymmetrically With Pulse Start":"No","Influence Of The Surrounding Temperature":"±1 %","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":"Yes","Finely Stranded Without Core End Processing":"0.25 ... 1.5 mm²","Flashing Asymmetrically With Interval Start":"No","shock resistance according to IEC 60068-2-27":"15g / 11 ms","Retriggerable With Deactivated Control Signal":"No","Type Of Voltage Of The Control Supply Voltage":"AC/DC","operating frequency with 3RT2 contactor maximum":"2 500 1/h","vibration resistance according to IEC 60068-2-6":"10 ... 59 Hz: 0.35 mm, 60 ... 150 Hz: 2g","Retrotriggerable With Switched-On Control Signal":"No","Mechanical Service Life (Operating Cycles) Typical":"100 000 000","Size Of Contactor Can Be Combined Company-Specific":"S2, S3","electrostatic discharge according to IEC 61000-4-2":"8 kV","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":"spring-loaded terminals","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","Retrotriggerable With Deactivated Control Signal/Instantaneous Contact":"No","Retrotriggerable With Switched-On Control Signal/Instantaneous Contact":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7053c5c8b20305b7eef5e3fdbb5d9ccd.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=466060&mlfb=3RA2831-2DG10"},"ai":{"faq":[{"question":"What is the adjustable time range on 3RA2831-2DG10?","answer":"The ON-delay is adjustable from 0.05 to 100 seconds, with a 50 ms recovery time between cycles. The initial value is set at 0.85 of full scale, and the full-scale value is 1.1 — these are factory calibration points, not user-adjustable limits."},{"question":"What control voltage does 3RA2831-2DG10 accept?","answer":"It accepts 24 to 90 V AC/DC — both AC (50/60 Hz) and DC control supplies within that range. No separate control transformer needed if your panel runs 24 VDC or 48-90 VAC pilot circuits."},{"question":"How does 3RA2831-2DG10 mount in a panel?","answer":"It clips onto the side of a SIRIUS contactor or motor starter — no DIN rail required. The module adds 45 mm to the contactor width. Mounting position is any orientation, and zero clearance is allowed on all sides."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2831-2DG10","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/3RA2831-2DG10 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}}