# Siemens 3RC7940-0TE20 Communication Cable for 3RC7 ILM to ET200SP, 2 m

**URL:** https://aio.lv/en/product--siemens-3rc7940-0te20--12448574
**Data updated:** 2026-05-18 02:54 (EEST)
**Category:** Internal PC Cables
**Manufacturer:** Siemens
**Manufacturer code:** 3RC7940-0TE20
**EAN:** 4047621107837
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 25.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--siemens-3rc7940-0te20--12448574

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The Siemens 3RC7940-0TE20 is a specialized communication cable designed for connecting 3RC7 ILM modules to the ET200SP distributed I/O system. With a length of 2 meters, this cable ensures reliable data transmission and seamless integration within industrial automation setups. It is an essential component for maintaining efficient communication between system controllers and field devices in professional electrical installations.

## Long description

The Siemens 3RC7940-0TE20 is a high-quality communication cable specifically engineered to facilitate seamless data exchange between 3RC7 ILM modules and the ET200SP distributed I/O system. Measuring 2 meters in length, this cable provides the necessary reach for flexible component placement within industrial control cabinets. It is designed to maintain signal integrity and robust connectivity, ensuring that your automation infrastructure operates with high reliability and minimal downtime.
Advantages
This communication cable offers a precise fit for Siemens automation components, eliminating compatibility issues often found with generic alternatives. The robust construction ensures durability in demanding industrial environments, protecting the internal conductors from mechanical stress and interference. By utilizing this dedicated cable, users benefit from simplified installation processes and consistent performance, which are critical for maintaining the efficiency of complex distributed I/O networks.
Suitable for
Connecting 3RC7 ILM modules to ET200SP I/O stations
Industrial automation and control system integration
Data communication in professional electrical installations
Expanding distributed I/O network configurations
When it may not be suitable
This cable is not intended for use in applications requiring cable lengths exceeding 2 meters, as signal degradation may occur. It is also not suitable for environments with extreme chemical exposure or high-temperature conditions that exceed the specified operating limits of the cable insulation.
Key specifications
Cable length: 2 meters
Compatibility: 3RC7 ILM modules and ET200SP systems
Application: Industrial communication and data transmission
How to use
To install the cable, ensure that the power supply to the connected modules is switched off to prevent electrical hazards. Align the connectors with the corresponding ports on the 3RC7 ILM module and the ET200SP interface. Insert the connectors firmly until they click into place or are securely fastened. Once connected, route the cable away from high-voltage power lines to minimize electromagnetic interference before restoring power to the system.
What to consider before purchase
Verify the physical distance between your modules to ensure the 2-meter length is sufficient
Check the compatibility of your specific module versions with the ET200SP system
Ensure the installation environment meets the standard industrial requirements for this type of cabling
Usage recommendations
Always inspect the cable for signs of wear or damage before installation. Avoid bending the cable at sharp angles to maintain the integrity of the internal wiring and ensure long-term operational stability.

## FAQ

### How much does the Siemens 3RC7940-0TE20 Communication Cable cost, and is it available for purchase?

The price is 30.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 13.07.2026 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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