Order number 3RP2540-1AW30 is a genuine Siemens part from the SIRIUS 3RP2 timing relays range. Official description: Timing relay, electronic OFF delay without control signal or smooth passing make contact non-volatile 7 time ranges 0.05…600 s 12-240 V AC/DC, 1 change-over contact at 50/60 Hz AC with LED, Screw terminal.
SIRIUS 3RP2 timing relays add on-delay, off-delay, star-delta and multifunction timing to control circuits in a 17.5 mm or 22.5 mm wide DIN-rail housing.
See our Siemens range.
Technical data
| Siemens order number | 3RP2540-1AW30 |
|---|---|
| Product type designation | 3RP25 |
| Ambient temperature (operation) | -25 … +60 °C |
| Dimensions (W x H x D) | 22.5 x 100 x 90 mm |
| Weight, approx. | 0.135 kg |
| Condition | New, original Siemens |
Main features
- Timing relay
- Electronic OFF delay without control signal or smooth passing make contact non-volatile 7 time ranges 0.05…600 s 12-240 V AC/DC
- 1 change-over contact at 50/60 Hz AC with LED
- Screw terminal
Typical applications
- Replacing a failed timer
- Pulse and flashing functions
- Delayed start of fans and pumps
- Star-delta starters
Compatibility and replacement
Check the time functions, time range, control supply voltage and the number of changeover contacts listed in the Siemens data sheet against the old relay.
Replacement checklist
- Check the supply voltage and wiring of the old unit before installing the new one.
- Look for signs of overvoltage, water or heat damage in the cabinet so the new part does not fail for the same reason.
- Check the mounting (DIN rail or screw fixing) and the terminal type (screw or spring-loaded) of the old unit.
Frequently asked questions
Which timing functions does it have?
The functions are listed in the Siemens description and data table above.
Is it DIN-rail mounted?
Yes, SIRIUS 3RP2 timing relays snap onto a 35 mm DIN rail.
Do you supply larger quantities for projects?
Yes. For panel builders and plant projects we quote complete lists; send the bill of materials on WhatsApp or through the inquiry form.
Can you help me identify the right replacement?
Yes. Send us a photo of the label of the old part, or its full order number, and we will confirm the exact match or the official successor before quoting.
Can I get a price and delivery time?
Prices are quoted on request. Send the order number, quantity and delivery country on WhatsApp and we will reply with price and delivery time; air shipping is usually 5 to 7 days once ready, with a 1-year warranty.
Ordering tips
Send us the full order number from the label of the old part, or a clear photo of the label, together with the quantity you need. We check the number against the current manufacturer data before we quote and tell you if there is a newer replacement.
RendatSP ships from Yiwu, China, to factories worldwide; air delivery usually takes 5 to 7 days once the part is ready. The part is new and original with a 1-year warranty (shipping, payment and warranty). For a quotation, message us on WhatsApp with the order number and quantity. We also have agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.





