{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RP2505-2BW30","brand":"Siemens","brandSlug":"siemens","productSlug":"3RP2505-2BW30","canonicalUrl":"https://aoctrl.com/siemens/3RP2505-2BW30","factsUrl":"https://aoctrl.com/api/mcp/products/3RP2505-2BW30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RP2505-2BW30 multi-function time delay relay, 12–240 V AC/DC, 0.05 s–100 h, 5 A relay output, 22.5 mm DIN rail.","salesMarkdown":"## What the 3RP2505-2BW30 actually does when bolted to DIN rail The 3RP2505-2BW30 is a SIRIUS multi-function timer that covers ON-delay, OFF-delay, pulse-delayed, pulse-shaping, additive ON-delay, and star-delta timing from a single 22.5 mm-wide housing. Tight panel builders reach for it when one catalog line has to replace several specialty timers — the function is dialed on the front, not by reordering a different SKU. ## Time range, supply, and the contact envelope that decides the fit Time range runs 0.05 s to 100 h adjustable, with initial and full-scale trim values of 0.8 and 1.1. That span handles everything from a sub-second brake release to a multi-day process staging — one device, no jumpering across SKUs. Supply is 12–240 V across both DC and 50/60 Hz AC, with a 250 ms recovery time and a 35 ms minimum ON period. One part number covers the 24 VDC control rail and the 230 VAC utility feed — the panel builder stops stocking regional variants. That envelope is sized for pilot-duty switching into contactors and solenoid valves — not for direct motor switching — so the wiring path goes timer → contactor coil, not timer → load. ## Panel integration at the 22.5 mm footprint The 22.5 mm width is the SIRIUS standard pitch — adjacent timers and monitoring relays line up cleanly in the same row without adapter plates. Wire range is 20–12 AWG solid or stranded, and the module runs -25 to +60 °C in operation, -40 to +85 °C in storage and transport. It sits unventilated inside an enclosure next to contactors and switching power supplies without derating below +60 °C ambient. Memory is non-volatile flag is set to No, so timing presets are not retained through a power cycle — the timer reinitialises on re-energise. For sequencing logic that must survive a brownout, the integrator pairs the timer with a latching relay or an upstream retentive logic bit.","metaTitle":"Siemens 3RP2505-2BW30 SIRIUS timer, 0.05 s–100 h, 12–240 V","metaDescription":"Siemens 3RP2505-2BW30 SIRIUS multi-function time delay relay, 12–240 V AC/DC, 0.05 s to 100 h, 5 A relay output, DIN rail. Quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Time Delay Relays"],"specifications":{"Depth":"90 mm","Solid":"20 ... 12","Width":"22.5 mm","at DC":"12 ... 240 V","title":"3RP2505-2BW30","Height":"100 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","ON-delay":"Yes","Stranded":"20 ... 12","at 125 V":"0.2 A","at 240 V":"0.5 ms","at 250 V":"0.1 A","at 50 Hz":"12 ... 240 V","at 60 Hz":"12 ... 240 V","Backwards":"0 mm","Downwards":"0 mm","OFF delay":"Yes","At The Side":"0 mm","description":"Timing relay, Multifunction 2 change-over contacts, 27 functions 7 time ranges (0.05 s...100 h) 12-240 V AC/DC at 50/60 Hz AC with LED Spring-type terminal (push-in)","Non-Volatile":"No","Relay Output":"Yes","Initial Value":"0.8","Pulse Delayed":"Yes","Pulse-Shaping":"Yes","Recovery Time":"250 ms","During Storage":"-40 ... +85 °C","Adjustable Time":"0.05 s ... 100 h","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":"2","Mounting Position":"any","additive ON-delay":"Yes","minimum ON period":"35 ms","Product Brand Name":"SIRIUS","Star-Delta Circuit":"Yes","Type Of Insulation":"Basic insulation","Degree Of Pollution":"3","Product Designation":"timing relay","protection class IP":"IP20","Passing Make Contact":"Yes","for AWG cables solid":"20 ... 12","Design Of The Product":"27 functions","Instantaneous Contact":"0","Passing Break Contact":"Yes","Semi-Conductor Output":"No","Power Supply Influence":"1% in the whole voltage range to the set runtime","power loss [W] maximum":"2 W","OFF delay/instantaneous":"Yes","for AWG cables stranded":"20 ... 12","Relative Repeat Accuracy":"1 %; +/-","Pulse Delayed/Instantaneous":"Yes","Pulse-Shaping/Instantaneous":"Yes","Substance Prohibitance (Date)":"09/12/2014","Material Of Switching Contacts":"AgSnO2","ON-delay/instantaneous contact":"Yes","Test Voltage For Isolation Test":"2.5 kV","additive ON-delay/instantaneous":"Yes","ON-delay/OFF-delay/instantaneous":"Yes","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":"Yes","Surge Voltage Resistance Rated Value":"4 000 V","EMC immunity according to IEC 61812-1":"corresponds to degree of severity 3","Flashing Symmetrically With Pulse Start":"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","Finely Stranded With Core End Processing":"0.5 ... 2.5 mm²","Flashing Asymmetrically With Pulse Start":"No","Influence Of The Surrounding Temperature":"1% in the whole temperature range to the set runtime","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":"Yes","Passing Make Contact/Instantaneous Contact":"Yes","Design Of The Control Terminal Non-Floating":"Yes","Finely Stranded Without Core End Processing":"0.5 ... 4 mm²","Flashing Asymmetrically With Interval Start":"No","shock resistance according to IEC 60068-2-27":"11g / 15 ms","Retriggerable With Deactivated Control Signal":"Yes","Type Of Voltage Of The Control Supply Voltage":"AC/DC","Switching Capacity Current With Inductive Load":"0.01 ... 3 A","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":"Yes","EMC emitted interference according to IEC 61812-1":"ambience A (industrial sector)","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","At The Relay Outputs Switchover Delayed/Without Delay":"Yes","Flashing Symmetrically With Pulse Start/Instantaneous":"Yes","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":"Yes","Type Of Electrical Connection For Auxiliary And Control Circuit":"spring-loaded terminals (push-in)","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","Retrotriggerable With Deactivated Control Signal/Instantaneous Contact":"Yes","Retrotriggerable With Switched-On Control Signal/Instantaneous Contact":"Yes","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":"$83.82 – $224.76","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/58d91182068f15a5201a4111ff1fb227.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=200804&mlfb=3RP2505-2BW30"},"ai":{"faq":[{"question":"Where can I buy 3RP2505-2BW30 and how do I get a price?","answer":"Source the 3RP2505-2BW30 through independent industrial-automation distribution and quote it against an RFQ — genuine Siemens SIRIUS stock, lead time and unit price confirmed at quote time. We do not publish price or stock figures on the page; the RFQ is where the real numbers land."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RP2505-2BW30","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/3RP2505-2BW30 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}}