# F&F PCU-520 UNI Universal Time Relay 2xNO/NC 12-264V

**URL:** https://aio.lv/en/product--ff-pcu-520uni--12465303
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Control Systems
**Manufacturer:** FF
**Manufacturer code:** PCU-520UNI
**EAN:** 5908312597735
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The F&F PCU-520 UNI is a universal time relay designed for precise control of electrical circuits. It features two NO/NC contacts and operates within a wide voltage range of 12-264V AC/DC. This versatile relay is suitable for various industrial and residential automation applications, providing reliable timing functions for lighting, heating, and ventilation systems.

## Long description

The F&F PCU-520 UNI is a universal time relay engineered for the precise management of electrical circuits in both residential and industrial environments. This device offers flexible timing control, allowing users to automate various electrical processes with high reliability. With its broad compatibility and robust design, it serves as a core component for modern automation systems requiring consistent performance.
Advantages
The primary benefit of this relay is its exceptional versatility, provided by a wide operating voltage range that spans from 12V to 264V AC/DC. This eliminates the need for multiple specialized relays, simplifying inventory and installation. The inclusion of two independent NO/NC contacts allows for complex switching configurations, while the high-quality construction ensures long-term operational stability in demanding conditions.
Suitable for
Lighting control systems in hallways or stairwells
Heating and cooling system management
Ventilation and air conditioning automation
Industrial process timing and sequence control
General electrical circuit switching
When it may not be suitable
This relay may not be appropriate for applications requiring extremely high-frequency switching or specialized industrial protocols that demand programmable logic controllers. It is also not intended for use in environments with extreme moisture or corrosive gases unless housed in a suitable protective enclosure.
Key specifications
Operating voltage: 12-264V AC/DC
Contact configuration: 2x NO/NC
Functionality: Universal time relay
Application: Industrial and residential automation
How to use
Installation should be performed by a qualified professional in accordance with local electrical regulations. The relay is designed for mounting on standard DIN rails. After securing the device, connect the power supply and the controlled load to the appropriate terminals as indicated on the housing diagram. Adjust the timing settings using the integrated controls to achieve the desired delay or cycle duration before activating the circuit.
What to consider before purchase
Verify that the load current does not exceed the relay contact ratings
Ensure the mounting space is compatible with DIN rail standards
Confirm the timing range meets your specific project requirements
Usage recommendations
For optimal longevity, ensure the relay is installed in a dust-free environment and protected from direct weather exposure. Regularly inspect terminal connections to prevent overheating due to loose wiring.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 FF 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 FF 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/12465303/68766845_large.webp