{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RP1540-1AN31","brand":"Siemens","brandSlug":"siemens","productSlug":"3RP1540-1AN31","canonicalUrl":"https://aoctrl.com/siemens/3RP1540-1AN31","factsUrl":"https://aoctrl.com/api/mcp/products/3RP1540-1AN31","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RP1540-1AN31 time relay, 200-240 V AC 50/60 Hz, adjustable 0.05-600 s, 1 changeover contact, 5 A thermal current, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"The Siemens SIRIUS 3RP1540-1AN31 is a single-function time relay with an adjustable ON-delay range of 0.05 to 600 seconds, powered by 200-240 V AC at 50/60 Hz. Its 5 A thermal current rating and 1 changeover contact handle control-signal switching in motor starter and conveyor interlock circuits. The 200-240 V AC control supply is the standard European industrial voltage — common across SIRIUS contactor coils and PLC power supplies — so this relay shares the same bus without a separate transformer. The 0.05-600 s adjustable time range covers short blast-timer sequences (conveyor jog) through long pump-drain delays; the 150 ms recovery time means it resets fast enough for cyclic operations under 7 cycles per minute. Contact ratings at 24 V (1 A,), 125 V (0.2 A,), and 250 V (0.1 A,) define the switching limit for each voltage — use the 24 V figure for PLC digital inputs, the 250 V figure for contactor coils within that current. ## Panel integration The 22.5 mm width occupies one standard module slot; depth of 91 mm and height of 83 mm fit within typical 120 mm deep enclosures. Terminal tightening torque is 0.8-1.2 N·m for stranded wire 20-14 AWG. Basic insulation means it is suitable for control circuits within an earthed enclosure, not for direct line-side isolation.","metaTitle":"Siemens 3RP1540-1AN31 SIRIUS Time Relay, 200-240 VAC, 0.05-6","metaDescription":"Siemens SIRIUS 3RP1540-1AN31 time relay, 200-240 VAC 50/60 Hz, adjustable 0.05-600 s, 1 changeover contact, 5 A thermal current, screw/snap-on 35 mm DIN rail. Sourced to order agai","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Time Delay Relays"],"specifications":{"Depth":"91 mm","Solid":"20 ... 14","Width":"22.5 mm","at DC":"200 ... 240 V","Height":"83 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","ON-delay":"No","Stranded":"20 ... 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 mm","Downwards":"0 mm","OFF delay":"No","At The Side":"0 mm","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 DIN rail","Full-Scale Value":"1.1","Delayed Switching":"1","Mounting Position":"any","Tightening Torque":"0.8 ... 1.2 N·m","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 (20 ... 14)","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 (20 ... 14)","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":"0.5 ... 2.5 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","Flashing Asymmetrically With Interval Start":"No","Design Of The Thread Of The Connection Screw":"M3","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 (Operating 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":"screw-type 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":"$125.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c4d373e8a49c33fb756f09ec90f60766.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=21185&mlfb=3RP1540-1AN31","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RP1540-1AN31/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RP1540-1AN31 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Submit an RFQ to confirm current availability and pricing at quote time."},{"question":"What is 3RP1540-1AN31's listed depth?","answer":"The depth is 91 mm. Combined with the 22.5 mm width and 83 mm height, it fits standard 120 mm deep enclosures on 35 mm DIN rail."},{"question":"What supply voltage does the 3RP1540-1AN31 need?","answer":"It requires 200-240 V AC at 50/60 Hz. This matches standard European industrial control voltages, so it can share the same bus as SIRIUS contactor coils and many PLC power supplies."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RP1540-1AN31","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/3RP1540-1AN31 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}}