# Siemens 3RC7940-2TE00 S00 Stand Alone Adapter for 3RT2.1 Contactors

**URL:** https://aio.lv/en/product--siemens-3rc7940-2te00--12455397
**Data updated:** 2026-05-18 09:42 (EEST)
**Category:** Printer & Copier Parts
**Manufacturer:** Siemens
**Manufacturer code:** 3RC7940-2TE00
**EAN:** 4047621109848
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 43.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 36.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rc7940-2te00--12455397

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

The Siemens 3RC7940-2TE00 is a stand-alone adapter designed for size S00 components, specifically for use with 3RT2.1 series contactors. This mounting accessory facilitates the independent installation of electrical control devices, ensuring secure and reliable integration within industrial control panels. It is an essential component for modular system configurations requiring flexible mounting solutions.

## Long description

The Siemens 3RC7940-2TE00 is a specialized stand-alone adapter engineered for size S00 components, specifically tailored for seamless integration with 3RT2.1 series contactors. This mounting accessory provides a robust solution for the independent installation of electrical control devices, allowing for flexible and organized layouts within industrial control panels. By enabling a secure mounting platform, it ensures that your control system remains stable and reliable during operation, supporting the modular nature of modern electrical installations.
Advantages
This adapter offers significant benefits for panel builders and maintenance professionals by simplifying the installation process of contactors. Its design ensures a precise fit for S00 components, which minimizes assembly time and reduces the risk of mechanical errors. The durable construction provides long-term reliability in demanding industrial environments, while its compact footprint helps optimize space within control cabinets, allowing for more efficient component density.
Suitable for
Industrial control panel assembly
Modular electrical system configurations
Independent mounting of 3RT2.1 contactors
Space-optimized control cabinet designs
When it may not be suitable
This adapter is exclusively designed for size S00 components and the 3RT2.1 series. It is not compatible with contactors of different sizes or other series, and attempting to force an incompatible device may result in mechanical failure or safety hazards.
Key specifications
Compatibility: Size S00 components
Specific series: 3RT2.1 contactors
Function: Stand-alone mounting adapter
Application: Industrial control panels
How to use
To use the adapter, first ensure that the power supply to the control panel is disconnected. Align the 3RT2.1 contactor with the mounting interface of the adapter. Secure the contactor onto the adapter according to the mechanical locking mechanism provided. Once the contactor is firmly attached, the entire assembly can be mounted onto a standard DIN rail or a flat surface within the control cabinet, depending on the specific panel layout requirements.
What to consider before purchase
Verify that your contactor is a 3RT2.1 series model
Confirm that your system requires size S00 components
Check available space in your control cabinet for stand-alone mounting
Usage recommendations
Ensure that all mounting surfaces are clean and free of debris before installation to maintain the integrity of the connection. Regularly inspect the mounting assembly during routine maintenance to ensure that all fasteners remain secure and that no vibrations have loosened the components over time.

## FAQ

### How much does the Siemens 3RC7940-2TE00 S00 Stand Alone Adapter cost, and is it available for purchase?

The price is 43.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 10.07.2026 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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