# Siemens 3RH2131-1AP00 Auxiliary Contactor, 3NO + 1NC, 230V AC, Size S00

**URL:** https://aio.lv/en/product--siemens-3rh2131-1ap00--1796481
**Data updated:** 2026-05-18 02:39 (EEST)
**Category:** Printer & Copier Parts
**Manufacturer:** Siemens
**Manufacturer code:** 3RH2131-1AP00
**EAN:** 4011209847484
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 37.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 31.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rh2131-1ap00--1796481

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The Siemens 3RH2131-1AP00 is a high-quality auxiliary contactor designed for industrial control circuits. Featuring a size S00 design, it includes 3 normally open (NO) and 1 normally closed (NC) contacts. It operates with a 230V AC control supply voltage, ensuring reliable switching performance for automation and electrical control systems. This robust component is ideal for demanding industrial environments requiring precise signal processing.

## Long description

The Siemens 3RH2131-1AP00 is a professional-grade auxiliary contactor engineered for reliable performance in industrial control circuits. Built in the compact S00 size, this device is designed to handle signal processing tasks with high precision. It features a configuration of 3 normally open (NO) and 1 normally closed (NC) contacts, providing versatile switching capabilities for complex automation systems. Operating on a 230V AC control supply voltage, this contactor ensures consistent and durable operation in demanding electrical environments.
Advantages
This auxiliary contactor offers exceptional reliability and longevity, which are essential for maintaining continuous operation in industrial automation. Its compact S00 design allows for efficient use of space within control panels, making it an ideal choice for installations where cabinet density is a concern. The robust construction ensures resistance to mechanical wear and electrical stress, while the standardized contact configuration simplifies integration into existing control logic systems.
Suitable for
Industrial automation and control systems
Signal processing in electrical panels
Switching auxiliary circuits in machinery
Integration with motor starters and contactor relays
When it may not be suitable
This device is not intended for switching high-power main circuits or heavy motor loads, as it is strictly an auxiliary component. It is also not suitable for applications requiring DC control voltages, as this specific model is designed exclusively for 230V AC operation.
Key specifications
Size: S00
Contact configuration: 3 normally open (NO) and 1 normally closed (NC)
Control supply voltage: 230V AC
Application: Industrial control circuits
How to use
The contactor should be mounted on a standard 35mm DIN rail or secured via screw mounting within a control cabinet. Ensure that the control circuit wiring is connected to the designated terminals according to the wiring diagram. Before energizing, verify that the control voltage matches the 230V AC specification to prevent damage to the coil. Once installed, the device operates automatically based on the signals received from the control system.
What to consider before purchase
Verify that your control system provides a 230V AC supply voltage.
Ensure the S00 size fits within your existing control panel layout.
Confirm that the 3NO + 1NC contact arrangement meets your specific logic requirements.
Usage recommendations
Always ensure that the power supply is disconnected before performing any installation or maintenance work on the control circuit. Regularly inspect the terminal connections to ensure they remain tight and free from oxidation to maintain optimal electrical conductivity.

## FAQ

### How much does the Siemens 3RH2131-1AP00 Auxiliary Contactor cost, and is it available for purchase?

The price is 37.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Siemens products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Siemens service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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