# Impulse Relay FF BIS-402 230V 16A for Flush Mounting in Junction Box

**URL:** https://aio.lv/en/product--ff-bis-402--10661036
**Data updated:** 2026-03-20 09:46 (EET)
**Category:** Network Switches
**Manufacturer:** FF
**Manufacturer code:** BIS-402
**EAN:** 5908312594062
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 18.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-bis-402--10661036

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Impulse relay FF BIS-402 is a 230 V, 16 A single-channel switching device designed for flush mounting inside a junction box. It provides momentary (impulse) switching of lighting or low-voltage circuits from one or multiple push-button inputs. Suitable for residential and commercial installations where space-saving concealed switching and centralized control of lamps or loads is required.

## Long description

Impulse relay FF BIS-402 230V 16A for flush mounting in junction box is a single-channel, 230 V switching device engineered for concealed installation. The module provides momentary (impulse) switching of lighting or low-voltage circuits from one or multiple push-button inputs, enabling centralized control without visible wall-mounted relays. Its compact format fits standard junction boxes and is intended for both residential and commercial electrical installations where space-saving and hidden control are required.
Advantages
The impulse relay offers reliable single-pole switching with a nominal current rating of 16 A at 230 V, suitable for most lighting loads and small actuators. Designed for flush mounting, it minimizes visible hardware in interiors and supports multiple push-button inputs for flexible control points. The device reduces wiring complexity by converting momentary button signals into maintained switching states, and its compact housing simplifies installation inside standard junction boxes.
Suitable for
Centralized on/off control of domestic and commercial lighting circuits
Staircase or corridor lighting with multiple push-button stations
Integration with low-voltage control circuits for blinds or small motors (within current rating)
Concealed installations where wall space is limited or aesthetics require hidden devices
Key specifications
Supply voltage: 230 V AC
Nominal switching current: 16 A
Single-channel impulse (momentary) switching operation
Designed for flush mounting inside a junction box
Compatible with one or multiple momentary push-button inputs
How to use
Install the impulse relay inside a standard junction box according to local electrical regulations and wiring practices. Connect the 230 V supply and the load to the relay terminals, and wire one or more momentary push-button switches to the control input. After powering the device, each brief press of a connected push-button will toggle the output state, switching the connected lighting or controlled circuit on or off. Ensure the connected load does not exceed the relay's 16 A rating and observe correct polarity and grounding where applicable.
Usage recommendations
Use the relay with loads within its rated current and ensure secure terminal connections. For circuits with inductive loads or motors, verify suitability and consider adding appropriate protection or suppression components. Follow national wiring codes and, if unsure, consult a qualified electrician for installation and testing.

## FAQ

### How much does the Impulse Relay FF BIS-402 230V 16A cost, and is it available for purchase?

The price is 21.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 78 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 03.07.2026 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

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