# F&F ST63-40-M Modular Contactor 63A 4-Pole

**URL:** https://aio.lv/en/product--ff-st63-40-m--12458770
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Power Sockets
**Manufacturer:** FF
**Manufacturer code:** ST63-40-M
**EAN:** 5902431674018
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The F&F ST63-40-M is a high-quality modular contactor designed for reliable electrical circuit switching in residential and industrial installations. This 4-pole device supports a rated current of 63A, ensuring efficient control of lighting, heating, and ventilation systems. Its compact modular design allows for easy mounting on standard DIN rails, providing a professional solution for power management and automation in electrical distribution boards.

## Long description

The F&F ST63-40-M is a high-performance modular contactor engineered for the reliable switching of electrical circuits in both residential and industrial environments. This 4-pole device is built to handle a rated current of 63A, making it an essential component for the efficient control of high-load systems such as lighting, heating, and ventilation. Its compact, modular construction is specifically designed for seamless integration into standard electrical distribution boards, ensuring a clean and professional installation on DIN rails.
Advantages
This contactor offers exceptional durability and operational stability, ensuring consistent performance even under demanding electrical loads. The modular design facilitates quick and straightforward installation, saving time during the assembly of electrical panels. By providing robust power management, it helps maintain the safety and efficiency of automated systems, while its 4-pole configuration allows for versatile circuit control options in various power distribution setups.
Suitable for
Control of lighting systems in commercial and residential buildings
Management of electric heating and ventilation units
Automation of power circuits in distribution boards
Switching of industrial machinery and equipment
When it may not be suitable
This device is not intended for applications requiring a higher rated current than 63A or for environments with extreme environmental conditions that exceed the standard IP rating for modular equipment. It is also not suitable for direct control of sensitive electronic devices that require specialized soft-start or variable frequency drive technology.
Key specifications
Rated current: 63A
Number of poles: 4
Mounting type: DIN rail
Application: Residential and industrial electrical systems
How to use
The F&F ST63-40-M 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 an electrical enclosure. Ensure that the power supply is disconnected before making any connections. Connect the input power lines to the top terminals and the load lines to the bottom terminals, ensuring that all wire gauges are appropriate for the 63A current rating and that all terminal screws are tightened securely to prevent overheating.
What to consider before purchase
Verify that the 63A rating is sufficient for your specific load requirements
Ensure there is adequate space on the DIN rail within your distribution board
Confirm that the 4-pole configuration matches your circuit design needs
Usage recommendations
Regularly inspect the terminal connections for tightness and ensure the device is kept free from dust and moisture to maintain optimal operational longevity and safety.

## 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

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