# Phoenix Contact PLC-RSC 24DC/21 Interface Relay, 1 PDT, 24V DC

**URL:** https://aio.lv/en/product--phoenix-contact-2966171--3825159
**Data updated:** 2026-05-18 02:50 (EEST)
**Category:** Server Parts & Components
**Manufacturer:** PHOENIX-CONTACT
**Manufacturer code:** 2966171
**EAN:** 4017918130732
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 16.52 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--phoenix-contact-2966171--3825159

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The Phoenix Contact PLC-RSC 24DC/21 is a high-quality interface relay module featuring a 24V DC coil and a single PDT contact configuration. Designed for industrial automation and control systems, this relay ensures reliable signal switching and electrical isolation. It comes pre-assembled with a base, facilitating quick and easy installation on DIN rails in various control cabinet applications.

## Long description

The Phoenix Contact PLC-RSC 24DC/21 is a professional-grade interface relay module designed for robust signal switching and electrical isolation in industrial automation environments. This pre-assembled unit combines a high-quality miniature relay with a reliable screw-connection base terminal block, ensuring seamless integration into control cabinets. Engineered for efficiency and durability, it provides a dependable solution for managing electrical loads and signal processing in demanding technical applications.
Advantages
The relay module features a slim, space-saving design that optimizes control cabinet density. It supports efficient connection to system cabling through V8 adapters, significantly reducing wiring time. The unit is equipped with an RT III sealed relay for enhanced protection against environmental factors. It ensures safe electrical isolation between the coil and contact in accordance with DIN EN 50178 standards. Additionally, the module includes functional plug-in bridges and an integrated input circuit with interference suppression to maintain signal integrity.
Suitable for
Industrial automation and control systems
Signal switching in control cabinets
Electrical isolation between control and load circuits
Interface applications requiring 24V DC control
When it may not be suitable
This relay is intended for standard industrial control applications and may not be suitable for high-power switching tasks exceeding its rated contact capacity. It is also not designed for use in environments with extreme vibration or corrosive atmospheres that exceed the protection rating of the housing.
Key specifications
Input voltage: 24V DC
Contact configuration: 1 PDT (Single Pole Double Throw)
Connection method: Screw connection
Mounting type: DIN rail NS 35/7.5
Protection rating: RT III sealed
Standards: DIN EN 50178 compliant
How to use
Installation is straightforward due to the pre-assembled nature of the module. Simply snap the base terminal block onto a standard NS 35/7.5 DIN rail. Connect your 24V DC control signal to the input terminals and wire your load to the output contact terminals using the integrated screw connections. If multiple relays are used, you can utilize plug-in bridges to distribute power efficiently across adjacent modules.
What to consider before purchase
Verify that the 24V DC control voltage matches your system requirements.
Ensure the contact rating is sufficient for your specific load.
Check available space on the DIN rail for the slim module footprint.
Confirm compatibility with your existing wiring and cabling infrastructure.
Usage recommendations: Always ensure the power is disconnected before performing any wiring or maintenance tasks on the relay module. Regularly inspect the screw connections to ensure they remain tight and free from oxidation to maintain optimal electrical performance.

## Specifications

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 6.2 x 94 x 80 |
| Weight | 0.0311 kg |
| Operating temperature (T-T) | -40 - 60 |

## FAQ

### How much does the Phoenix Contact PLC-RSC 24DC/21 Interface Relay cost, and is it available for purchase?

The price is 19.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 720 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 08.07.2026 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 PHOENIX-CONTACT 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 PHOENIX-CONTACT 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

https://aio.lv/img/cache/product/3825159/58571922_large.webp