# F&F ST25-04 Modular Contactor 25A 4NO 230V AC

**URL:** https://aio.lv/en/product--ff-st25-04--12463215
**Data updated:** 2026-05-18 09:33 (EEST)
**Category:** Power Sockets
**Manufacturer:** FF
**Manufacturer code:** ST25-04
**EAN:** 5908312593973
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 30.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 25.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-st25-04--12463215

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The F&F ST25-04 is a high-quality modular contactor designed for reliable electrical circuit switching. Featuring a 25A rated current and 4 normally open (4NO) contacts, it operates on a 230V AC control voltage. This compact device is ideal for installation in distribution boards to control lighting, heating, and ventilation systems in residential and commercial electrical installations.

## Long description

The F&F ST25-04 modular contactor is a professional-grade electrical component engineered for the reliable switching of electrical circuits in various environments. With a rated current of 25A and four normally open (4NO) contacts, this device provides robust performance for managing high-load electrical systems. Designed for seamless integration into standard distribution boards, it operates efficiently on a 230V AC control voltage, ensuring consistent and safe operation in both residential and commercial electrical infrastructures.
Advantages
This modular contactor stands out due to its compact design, which allows for space-efficient installation within standard electrical enclosures. The high-quality construction ensures durability and long-term reliability even under frequent switching operations. By utilizing four normally open contacts, the device offers versatile control capabilities for complex electrical setups, while the standardized modular form factor simplifies the mounting process on DIN rails, making it an excellent choice for modern electrical distribution systems.
Suitable for
Controlling lighting circuits in large residential or commercial buildings
Managing heating systems and electric radiators
Operating ventilation and air conditioning units
Switching industrial automation equipment
When it may not be suitable
This contactor is not designed for use in environments with extreme moisture, high levels of dust, or corrosive gases, as these conditions may compromise its internal components. It is also not intended for applications requiring DC control voltages or loads exceeding the 25A rated capacity.
Key specifications
Rated current: 25A
Contact configuration: 4 normally open (4NO)
Control voltage: 230V AC
Mounting type: DIN rail
Modular design for distribution boards
How to use
The F&F ST25-04 should be installed by a qualified electrician in accordance with local electrical regulations. The device is designed to be snapped onto a standard 35mm DIN rail within a distribution board. Once mounted, connect the control circuit wires to the coil terminals and the load circuit wires to the corresponding power terminals. Ensure all connections are tightened securely to prevent overheating and verify that the voltage levels match the device specifications before energizing the system.
What to consider before purchase
Verify that the 25A rated current is sufficient for your specific load requirements
Ensure the 230V AC control voltage is compatible with your existing control system
Check the available space in your distribution board for modular mounting
Confirm that the 4NO contact configuration meets your circuit switching needs
Usage recommendations
For optimal performance and longevity, ensure that the contactor is installed in a well-ventilated enclosure to prevent heat buildup. Regularly inspect the terminal connections for tightness during routine maintenance to maintain electrical integrity and prevent potential faults.

## FAQ

### How much does the F&F ST25-04 Modular Contactor 25A 4NO 230V AC 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 — 1 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 06.07.2026 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 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/12463215/68764968_large.webp