# F&F Modular Contactor ST63-40-24ACDC, 4xNO Contacts, 63A, 24V DC, DIN Rail Mount

**URL:** https://aio.lv/en/product--ff-st63-40-24acdc--12448457
**Data updated:** 2026-05-18 02:45 (EEST)
**Category:** Power Sockets
**Manufacturer:** FF
**Manufacturer code:** ST63-40-24ACDC
**EAN:** 5902431672878
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 74.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 61.56 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-st63-40-24acdc--12448457

## 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 ST63-40-24ACDC is a high-performance modular contactor designed for reliable electrical circuit switching. It features 4 normally open (NO) contacts, a rated current of 63A, and operates on a 24V DC control voltage. Engineered for standard DIN rail mounting, this device is ideal for industrial and residential automation systems, providing efficient control of lighting, heating, and motor circuits.

## Long description

The F&F ST63-40-24ACDC modular contactor is a robust electrical switching device engineered for high-performance control in both industrial and residential environments. This unit is designed to handle significant electrical loads with precision, featuring four normally open (NO) contacts that ensure reliable circuit operation. Built for seamless integration into modern electrical cabinets, it supports standard DIN rail mounting, making it a versatile component for complex automation systems.
Advantages
This modular contactor offers exceptional durability and consistent performance under demanding conditions. Its design prioritizes safety and efficiency, allowing for the reliable switching of high-current circuits such as lighting, heating elements, and electric motors. The compact modular form factor saves valuable space in distribution boards, while the 24V DC control voltage ensures compatibility with various low-voltage automation controllers and PLC systems.
Suitable for
Industrial automation and control systems
Residential lighting and heating circuit management
Motor control applications
Building management systems
When it may not be suitable
This device is specifically designed for 24V DC control signals. It is not suitable for applications requiring AC control voltages or systems where the load exceeds the rated 63A current capacity. Additionally, it should not be used in environments with extreme moisture or corrosive gases without appropriate protective enclosures.
Key specifications
Rated current: 63A
Control voltage: 24V DC
Contact configuration: 4x Normally Open (NO)
Mounting type: DIN rail
Modular design for standard distribution boards
How to use
Installation should be performed by a qualified electrician in accordance with local electrical regulations. The contactor is designed to be snapped onto a standard 35mm DIN rail within a distribution cabinet. Connect the control circuit to the A1 and A2 terminals using the specified 24V DC supply. The load circuits are connected to the main power terminals. Ensure all connections are tightened securely to prevent overheating and verify that the wiring matches the intended circuit diagram before energizing the system.
What to consider before purchase
Verify that your control system provides a 24V DC signal
Ensure the total load current does not exceed 63A
Check available space on the DIN rail within your enclosure
Confirm the number of required contacts matches the 4xNO configuration
Usage recommendations
Regularly inspect the terminal connections for tightness and ensure the device is kept free of dust and debris to maintain optimal thermal performance and operational longevity.

## FAQ

### How much does the F&F ST63-40-24ACDC Modular Contactor cost, and is it available for purchase?

The price is 74.49 € (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, Installment. All transactions are 100% secure and encrypted.

### Can F&F ST63-40-24ACDC Modular Contactor 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 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/12448457/68751436_large.webp