{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RP1540-2BN31","brand":"Siemens","brandSlug":"siemens","productSlug":"3RP1540-2BN31","canonicalUrl":"https://aoctrl.com/siemens/3RP1540-2BN31","factsUrl":"https://aoctrl.com/api/mcp/products/3RP1540-2BN31","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS time-delay relay, 3RP1540-2BN31, 200-240 VAC/DC supply, adjustable delay 0.05-600 s, relay output 1 A at 24 V, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"The Siemens 3RP1540-2BN31 is a SIRIUS time-delay relay with a 200-240 VAC/DC supply and an adjustable delay range of 0.05 to 600 seconds. It provides a relay output rated 1 A at 24 V, 0.2 A at 125 V, and 0.1 A at 250 V, with a thermal current rating of 5 A. The adjustable delay from 0.05 to 600 seconds handles timing needs from short pulse delays to extended off-delays for pump sequencing or conveyor staging. The relay output switches 1 A at 24 VDC — enough for a small contactor coil or PLC input — but the 0.1 A at 250 VAC limit means it's not for direct motor loads; use it to pilot a contactor or signal a controller. Width is 22.5 mm, so it occupies one slot in a typical terminal-block row. Clearance around the relay: 0 mm upwards, forwards, backwards, downwards, and at the side, meaning it can be packed tight against adjacent components without derating spacing.","metaTitle":"Siemens 3RP1540-2BN31 SIRIUS Time-Delay Relay, 200-240 VAC/D","metaDescription":"Siemens 3RP1540-2BN31 SIRIUS time-delay relay, 200-240 VAC/DC supply, adjustable 0.05-600 s delay, 1 A at 24 V contact rating. DIN-rail mount. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Time Delay Relays"],"specifications":{"Depth":"91 mm","Solid":"24 ... 16","Width":"22.5 mm","at DC":"200 ... 240 V","title":"3RP1540-2BN31","Height":"103 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","ON-delay":"No","Stranded":"24 ... 16","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 mm","Downwards":"0 mm","OFF delay":"No","At The Side":"0 mm","description":"Timing relay, Processor basis Phased-out product!!! For further information, please contact our sales department OFF delay 2 change-over contacts, without auxiliary voltage 0.05 s...600 s, 200-240 V AC/DC Spring-type terminal","Non-Volatile":"No","Relay Output":"Yes","Initial Value":"0.85","Pulse Delayed":"No","Pulse-Shaping":"No","Recovery Time":"150 ms","During Storage":"-40 ... +85 °C","Adjustable Time":"0.05 ... 600 s","Thermal Current":"5 A","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +85 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail","Full-Scale Value":"1.1","Delayed Switching":"2","Mounting Position":"any","additive ON-delay":"No","minimum ON period":"200 ms","Product Brand Name":"SIRIUS","Star-Delta Circuit":"No","Type Of Insulation":"Basic insulation","Degree Of Pollution":"3","Product Designation":"timing relay","at AWG cables solid":"2x (24 ... 16)","protection class IP":"IP20","Passing Make Contact":"No","Instantaneous Contact":"0","Passing Break Contact":"No","Semi-Conductor Output":"No","Power Supply Influence":"±1 %","at AWG cables stranded":"2x (24 ... 16)","power loss [W] maximum":"2 W","OFF delay/instantaneous":"No","Relative Repeat Accuracy":"1 %","Pulse Delayed/Instantaneous":"No","Pulse-Shaping/Instantaneous":"No","Substance Prohibitance (Date)":"05/28/2009","Material Of Switching Contacts":"AgNi","ON-delay/instantaneous contact":"No","Test Voltage For Isolation Test":"2 kV","additive ON-delay/instantaneous":"No","ON-delay/OFF-delay/instantaneous":"No","Control Supply Voltage Frequency 1":"50 ... 60 Hz","Relative Humidity During Operation":"10 ... 95 %","Star-Delta Circuit With Delay Time":"No","Passing Break Contact/Instantaneous":"No","Surge Voltage Resistance Rated Value":"4 000 V","EMC immunity according to IEC 61812-1":"EN 61000-6-2","Flashing Symmetrically With Pulse Start":"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","Finely Stranded With Core End Processing":"0.3 ... 1.5 mm²","Flashing Asymmetrically With Pulse Start":"No","Influence Of The Surrounding Temperature":"±5 %","Contact Reliability Of Auxiliary Contacts":"one incorrect switching operation of 100 million switching operations (17 V, 5 mA)","Product Extension Optional Remote Control":"No","Product Extension Required Remote Control":"No","Flashing Symmetrically With Interval Start":"No","Passing Make Contact/Instantaneous Contact":"No","Finely Stranded Without Core End Processing":"0.3 ... 1.5 mm²","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/DC","operating frequency with 3RT2 contactor maximum":"5 000 1/h","vibration resistance according to IEC 60068-2-6":"10 ... 55 Hz / 0.35 mm","Retrotriggerable With Switched-On Control Signal":"No","EMC emitted interference according to IEC 61812-1":"EN 61000-6-4(3)","Mechanical Service Life (Switching Cycles) Typical":"10 000 000","electrostatic discharge according to IEC 61000-4-2":"4 kV contact discharge / 8 kV air discharge","contact rating of auxiliary contacts according to UL":"R300 / B300","Flashing Symmetrically With Pulse Start/Instantaneous":"No","Relative Setting Accuracy Relating To Full-Scale Value":"5 %","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","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":"$149.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e911342952c9b7adfd8120608a826b0c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=519748&mlfb=3RP1540-2BN31"},"ai":{"faq":[{"question":"What is the adjustable time range for 3RP1540-2BN31?","answer":"The adjustable time range is 0.05 to 600 seconds."},{"question":"What supply voltage does 3RP1540-2BN31 require?","answer":"It requires 200-240 VAC at 50/60 Hz or 200-240 VDC."},{"question":"Where can I buy 3RP1540-2BN31 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution, with availability and current pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RP1540-2BN31","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/3RP1540-2BN31 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}}