Siemens 3RV2921-1M (SIRIUS 3RV2 accessories): signaling switch for circuit breaker 3RV2 with screw terminal.
Accessories extend 3RV2 breakers with auxiliary contacts, alarm switches, releases and busbars.
See our Siemens range.
Technical data
| Siemens order number | 3RV2921-1M |
|---|---|
| Product type designation | 3RV29 |
| Ambient temperature (operation) | -20 … +60 °C |
| Dimensions (W x H x D) | 18 x 90 x 68 mm |
| Weight, approx. | 0.093 kg |
| Product category | Auxiliary switch |
| Product designation | signaling switch |
| Design of the product | separate tripped signal and short circuit alarm, 1 NO + 1 NC each |
| Size of the circuit-breaker | S00, S0, S2, S3 |
| Display version LED | لا يوجد |
| Insulation voltage rated value | 690 V |
| Degree of pollution | 3 |
| Surge voltage resistance rated value | 6 kV |
| Protection class IP on the front > according to IEC 60529 | IP20 |
| Net Weight | 92.78 g |
| Number of NC contacts for auxiliary contacts instantaneous | 1 |
| Number of CO contacts of auxiliary contacts instantaneous | 0 |
| Operational current at AC-15 at 690 V rated value | 1 A |
| Operational current of auxiliary contacts at AC-12 > at 24 V | 10 A |
| Condition | New, original Siemens |
Typical applications
- Feedback to PLC
- Panel assembly
Compatibility and replacement
Check the breaker size.
Before you replace it
- 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 supply voltage and wiring of the old unit before installing the new one.
- Back up the program and parameters from the old device if it still runs.
Frequently asked questions
Which breakers does it fit?
3RV2 sizes as listed by Siemens.
Can I get a datasheet?
The official manufacturer datasheet is the source of the technical data above; we can send the PDF with the quotation on request.
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 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.
Before you order
Compare the complete order number on the old unit with this page, including the suffix: in most ranges the last characters set the coil voltage, current range or version. If the label is worn, send us a photo and we will identify the part.
Need it fast? Send the order number, quantity and delivery country on WhatsApp or through the inquiry form and we reply with a quotation the same working day. All parts are new and original, covered by a 1-year warranty, and ship worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Local agents: Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
