# F&F BIS-412P Bistable Relay

**URL:** https://aio.lv/en/product--ff-bis-412p--12462083
**Data updated:** 2026-05-18 09:44 (EEST)
**Category:** Control Systems
**Manufacturer:** FF
**Manufacturer code:** BIS-412P
**EAN:** 5902431670027
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 23.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-bis-412p--12462083

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

The F&F BIS-412P is a bistable relay designed for impulse-based lighting control. It allows for switching electrical circuits on and off from multiple locations using momentary push-buttons. This device is ideal for residential and commercial electrical installations, providing reliable control of lighting systems through a simple pulse signal. It ensures efficient operation and easy integration into standard electrical distribution boards.

## Long description

The F&F BIS-412P bistable relay is a specialized electronic device engineered for impulse-based lighting control. It enables the switching of electrical circuits on and off from various locations by utilizing simple momentary push-buttons. Designed for both residential and commercial electrical installations, this relay provides a reliable method for managing lighting systems through a pulse signal, ensuring seamless integration into standard electrical distribution boards.
Advantages
The primary benefit of the BIS-412P is its ability to simplify complex lighting setups by allowing control from an unlimited number of points. Because it operates on momentary pulses, it eliminates the need for complicated multi-way switching wiring. The device is built for durability and consistent performance, making it a dependable choice for modern electrical systems. Its compact design ensures it fits easily into standard DIN rail enclosures, saving space while maintaining high functionality.
Suitable for
Controlling lighting in long hallways or staircases
Managing lighting circuits in large rooms with multiple entry points
Residential smart home lighting upgrades
Commercial office lighting control systems
When it may not be suitable
This relay is not intended for high-power industrial machinery or circuits that require continuous heavy-duty switching beyond its rated capacity. It is also not suitable for applications requiring dimming functionality or complex automation logic beyond simple on-off switching.
Key specifications
Control voltage: 230V AC
Contact configuration: 1 NO (Normally Open)
Mounting type: DIN rail (35 mm)
Switching method: Impulse-based (momentary push-button)
Application: Lighting control
How to use
The relay is installed within an electrical distribution board on a standard DIN rail. Connect the power supply to the input terminals and the lighting circuit to the output terminals. Connect the momentary push-buttons in parallel to the control input. A single press of any connected button sends a pulse to the relay, which toggles the state of the lighting circuit. Subsequent presses will alternate the state between on and off.
What to consider before purchase
Ensure the total load of the lighting circuit does not exceed the relay's maximum switching capacity
Verify that the control voltage matches your existing electrical system
Confirm that you are using momentary push-buttons rather than standard latching switches
Usage recommendations
For optimal performance and safety, ensure that all electrical connections are tightened securely and that the installation is performed by a qualified electrician in accordance with local electrical codes.

## FAQ

### How much does the F&F BIS-412P Bistable Relay cost, and is it available for purchase?

The price is 28.49 € (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 02.07.2026 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/12462083/68763949_large.webp