Order number 3RH2131-1AP00 is a genuine Siemens part from the SIRIUS 3RH2 control relays / auxiliary switches range. Official description: contactor relay, 3 NO + 1 NC, 230 V AC, 50/60 Hz, screw terminal, frame size S00.
SIRIUS 3RH2 contactor relays and auxiliary switch blocks are used in control circuits to multiply contacts, interlock starters and interface PLC outputs with higher-power coils.
See our Siemens range.
Technical data
| Siemens order number | 3RH2131-1AP00 |
|---|---|
| Product type designation | 3RH2 |
| Ambient temperature (operation) | -25 … +60 °C |
| Dimensions (W x H x D) | 45 x 57.5 x 73 mm |
| Weight, approx. | 0.219 kg |
| Condition | New, original Siemens |
Key features (per Siemens)
- Contactor relay
- 3 NO + 1 NC
- 230 V AC
- 50/60 Hz
- Screw terminal
- Frame size S00
Typical applications
- Signalling and auxiliary functions on 3RT2 contactors
- Contact multiplication for PLC outputs
- Replacement of a worn relay or block
- Control circuits and interlocking
Compatibility and replacement
Check the coil voltage (for contactor relays) or the contactor size (for auxiliary blocks) against the old part before ordering.
Before you replace it
- Check the supply voltage and wiring of the old unit before installing the new one.
- Note the firmware version printed on the old unit; TIA Portal or LOGO! Soft Comfort must support it.
- Look for signs of overvoltage, water or heat damage in the cabinet so the new part does not fail for the same reason.
Frequently asked questions
What contacts does it have?
See the contact arrangement in the Siemens title and table above.
Does it fit 3RT2 contactors?
3RH29 auxiliary switch blocks fit 3RT2 contactors of the sizes listed by Siemens in the data sheet.
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.
Is it new and original?
Yes. We supply new, original parts in the manufacturer packaging, with a 1-year warranty.
How fast can you deliver, and is there a warranty?
Air shipping usually takes 5 to 7 days once the part is ready, to almost any country. Each part is new and original with a 1-year warranty. Message us on WhatsApp with the order number for a quotation.
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.
