# Schneider Electric Zelio Logic SR2B121FU Compact Smart Relay, 240VAC, 8 Inputs, 4 Outputs, LCD Display

**URL:** https://aio.lv/en/product--schneider-electric-sr2b121fu--12466487
**Data updated:** 2026-05-18 09:41 (EEST)
**Category:** Control Systems
**Manufacturer:** Schneider Electric
**Manufacturer code:** SR2B121FU
**EAN:** 3389110547641
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 199.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 165.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--schneider-electric-sr2b121fu--12466487

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The Schneider Electric Zelio Logic SR2B121FU is a compact smart relay designed for automation and control applications. It features 8 digital inputs and 4 relay outputs, operating at 240VAC. Equipped with an integrated LCD display and real-time clock (RTC), this programmable logic controller is ideal for managing small-scale industrial or building automation systems, offering reliable performance and easy configuration for various control tasks.

## Long description

The Schneider Electric Zelio Logic SR2B121FU is a compact smart relay engineered for efficient automation and control in various industrial and building management environments. This programmable logic controller operates on a 240VAC power supply and provides a robust interface for managing small-scale automated systems. Featuring an integrated LCD display and a real-time clock, it allows for direct monitoring and precise scheduling of control tasks, ensuring reliable operation in demanding conditions.
Advantages
This smart relay offers a high degree of flexibility for automation projects due to its compact design, which saves valuable space in control panels. The inclusion of an integrated LCD display simplifies the configuration process and allows for real-time status monitoring without the need for additional external devices. Furthermore, the built-in real-time clock enables time-based control functions, making it an excellent choice for applications requiring scheduled operations. Its reliable relay outputs ensure compatibility with a wide range of electrical loads, providing a versatile solution for diverse control requirements.
Suitable for
Small-scale industrial automation systems
Building automation and lighting control
HVAC system management
Access control and security systems
Automated machinery and equipment control
This device may not be suitable for large-scale industrial processes that require high-speed processing, extensive analog input/output capabilities, or complex communication protocols. It is designed for simpler logic control tasks and may lack the memory or processing power needed for highly sophisticated automation architectures.
Key specifications
Supply voltage: 240VAC
Digital inputs: 8
Relay outputs: 4
Integrated LCD display
Built-in real-time clock (RTC)
Compact modular design
To use the Schneider Electric Zelio Logic SR2B121FU, mount the unit onto a standard DIN rail within a protected electrical enclosure. Connect the power supply to the designated terminals and wire your sensors or switches to the digital inputs. Connect your controlled devices, such as contactors or valves, to the relay outputs. Use the integrated LCD interface or compatible programming software to define the control logic and set the real-time clock parameters according to your operational needs.
What to consider before purchase
Verify that your power supply matches the 240VAC requirement
Ensure the number of inputs and outputs meets your project needs
Check if the physical dimensions fit your existing control cabinet
Confirm that the logic capabilities are sufficient for your specific application
Usage recommendations: Regularly inspect the terminal connections for tightness and ensure the device is kept free from excessive dust or moisture to maintain optimal performance and longevity.

## FAQ

### How much does the Schneider Electric Zelio Logic SR2B121FU Smart Relay cost, and is it available for purchase?

The price is 199.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 16.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Schneider Electric Zelio Logic SR2B121FU Smart Relay be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Schneider Electric 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 Schneider Electric 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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