{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1916-2CH31","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1916-2CH31","canonicalUrl":"https://aoctrl.com/siemens/3RT1916-2CH31","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1916-2CH31","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS timing relay, 3RT1916-2CH31, ON-delay, adjustable 5 … 100 s, supply 90 … 240 V AC/DC, clip-on mounting, IP20.","salesMarkdown":"The Siemens 3RT1916-2CH31 is a SIRIUS timing relay that gives you an adjustable ON-delay from 5 to 100 seconds. It runs on a 90 to 240 V supply, working on both AC (50/60 Hz) and DC, so you can wire it into most control circuits without worrying about the flavor of voltage on the panel. It clips onto the DIN rail — standard 45 mm wide housing — and fits any mounting position. The IP20 terminal protection is what you expect for inside a cabinet; this isn't a washdown part, it's meant to live behind a gland plate where the grease stays on the bearings, not on the relay. The adjustable time range of 5 … 100 s covers a lot of common sequencing needs — staggering motor starts, delaying a conveyor restart after an E-stop, or holding off a coolant pump until the spindle is up to speed. The 50 ms recovery time means if you cycle power, the relay is ready to retime again in a blink, so fast cycling won't skip a beat. The supply range of 90 … 240 V AC/DC is wide enough that you don't need a separate control transformer for most 120 V or 230 V control circuits. Just land the wires and set the pot. The basic insulation and pollution degree 3 rating tell you it's built for a standard industrial cabinet, not a clean room. Rated for installation up to 2,000 m altitude. Storage range is -40 to +85 °C. The relay carries basic insulation per IEC 61812-1 and meets the EMC immunity standard EN 61000-6-2, which is the industrial environment level. That means it's tested to live next to contactors, drives, and welders without false-triggering. Pollution degree 3 handles conductive dust and humidity typical in a factory floor panel.","metaTitle":"Siemens 3RT1916-2CH31 SIRIUS Timing Relay, ON-delay 5-100s,","metaDescription":"Siemens 3RT1916-2CH31 SIRIUS timing relay. ON-delay adjustable 5-100s, 90-240V AC/DC supply. Clip-on for DIN rail. Current lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"38 mm","Solid":"18 ... 14","Width":"45 mm","at DC":"90 ... 240 V","Height":"38 mm","Maximum":"2 000 m","Typical":"100 000 000","Upwards":"0 m","Forwards":"0 m","ON-delay":"Yes","Stranded":"18 ... 14","at 50 Hz":"90 ... 240 V","at 60 Hz":"90 ... 240 V","Backwards":"0 m","Downwards":"0 m","OFF delay":"No","At The Side":"0 m","Non-Volatile":"No","Initial Value":"0.8","Mounting type":"clip-on","Pulse Delayed":"No","Pulse-Shaping":"No","Recovery time":"50 ms","During Storage":"-40 ... +85 °C","Adjustable time":"5 ... 100 s","Of The Terminal":"IP20","lifecycle_stage":"current","During Operation":"15 ... 95 %","During Transport":"-40 ... +85 °C","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":"timing relay","acc. to IEC 61812-1":"EN 61000-6-2","Passing Make Contact":"No","Instantaneous Contact":"0","Passing Break Contact":"No","Semi-Conductor Output":"Yes","acc. to IEC 60068-2-6":"10 ... 55 Hz: 0.35 mm","acc. to IEC 60068-2-27":"11g / 15 ms","OFF delay/instantaneous":"No","at AWG conductors solid":"2x (20 ... 14)","Relative repeat accuracy":"1 %","at AWG conductors stranded":"2x (20 ... 14)","Pulse Delayed/Instantaneous":"No","Pulse-Shaping/Instantaneous":"No","Design of the surge suppressor":"with varistor","ON-delay/instantaneous contact":"No","additive ON delay/instantaneous":"No","ON-delay/OFF-delay/instantaneous":"No","Control supply voltage frequency 1":"50 ... 60 Hz","Star-Delta Circuit With Delay Time":"No","due to burst acc. to IEC 61000-4-4":"2 kV network connection / 1 kV control connection","Passing Break Contact/Instantaneous":"No","Product function star-delta circuit":"No","Protection against electrical shock":"finger-safe","Variably Clocked Start With Impulse":"No","Surge voltage resistance rated value":"4 000 V","Variably Clocked Start With Interval":"No","Reference code acc. to DIN EN 81346-2":"K","Fixed Clock Cycle Beginning With Pulse":"No","With Degree Of Pollution 3 Rated Value":"300 V","Finely Stranded With Core End Processing":"0.5 ... 2.5 m²","Fixed Clock Cycle Beginning With Interval":"No","For Auxiliary And Control Current Circuit":"screw-type terminals","Product extension optional remote control":"No","Product extension required remote control":"No","Flashing Symmetrically Starting With Pulse":"No","Passing Make Contact/Instantaneous Contact":"No","Voltage drop when switched through maximum":"3.5 V","Design of the control terminal non-floating":"No","Flashing Asymmetrically Starting With Pulse":"No","Electrostatic discharge acc. to IEC 61000-4-2":"4 kV contact discharge / 8 kV air discharge","Flashing Symmetrically Starting With Interval":"No","Retriggerable With Deactivated Control Signal":"No","Type of voltage of the control supply voltage":"AC/DC","Flashing Asymmetrically Starting With Interval":"No","Retrotriggerable With Activated Control Signal":"No","Switching capacity current with inductive load":"0.01 ... 0.3 A","Size of contactor can be combined company-specific":"S00","due to conductor-earth surge acc. to IEC 61000-4-5":"2 kV","Short-time withstand current (Icw) limited to 10 ms":"10 A","Removable Terminal For Auxiliary And Control Circuit":"No","at the relay outputs Switchover delayed/without delay":"No","Relative setting accuracy relating to full-scale value":"15 %","Flashing Symmetrically Starting With Pulse/Instantaneous":"No","Flashing Symmetrically Starting With Interval/Instantaneous":"No","Retrotriggerable With Activated Control Signal/Instantaneous Contact":"No","Retrotriggerable With Deactivated Control Signal/Instantaneous Contact":"No"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=525573&mlfb=3RT1916-2CH31","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1916-2CH31/alternatives.json"},"ai":{"faq":[{"question":"What is the adjustable time range on this relay?","answer":"The ON-delay is adjustable from 5 to 100 seconds. The recovery time between cycles is 50 ms."},{"question":"Will this relay drop into a panel wired for the 3RT1016-1BB42 contactor?","answer":"Not directly — the 3RT1916-2CH31 is a timing relay, not a contactor. It's a different function. If your panel has a 3RT1016-1BB42 contactor and you need a timing relay alongside it, this clips onto the same DIN rail and shares the same 45 mm width footprint, so it fits in the same enclosure."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1916-2CH31","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/3RT1916-2CH31 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}}