# F&F ASO-203 Staircase Timer with Anti-Blocking 16A 0.5-10min 24V AC

**URL:** https://aio.lv/en/product--ff-aso-203--12479561
**Data updated:** 2026-05-22 07:20 (EEST)
**Category:** Control Systems
**Manufacturer:** FF
**Manufacturer code:** ASO-203
**EAN:** 5908312592174
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 17.76 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-aso-203--12479561

## 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 ASO-203 is a staircase timer designed for automatic lighting control in residential and commercial buildings. It features an anti-blocking function to prevent continuous operation, a 16A switching capacity, and an adjustable time delay from 0.5 to 10 minutes. Operating on 24V AC, this relay ensures energy efficiency and reliable lighting management for stairwells, corridors, and hallways.

## Long description

The F&F ASO-203 is a specialized staircase timer engineered for the automated management of lighting systems in both residential and commercial environments. Operating on a 24V AC power supply, this device provides a reliable solution for controlling lights in areas where timed illumination is required. It features a robust 16A switching capacity and an integrated anti-blocking function, which prevents the relay from remaining permanently engaged, thereby protecting the system from continuous operation and potential overheating.
Advantages
The primary benefit of this staircase timer is its anti-blocking mechanism, which ensures that the lighting circuit is automatically disconnected even if the control button is jammed or held down continuously. This feature significantly enhances the safety and longevity of the lighting installation. With an adjustable time delay ranging from 0.5 to 10 minutes, users can precisely calibrate the duration of illumination to suit specific traffic patterns in hallways or stairwells. The device is designed for efficient energy management, helping to reduce electricity consumption by ensuring lights are only active when necessary.
Suitable for
Stairwell lighting control in apartment buildings
Corridor and hallway illumination in office spaces
Public utility buildings requiring automated lighting cycles
Integration into low-voltage 24V AC electrical systems
When it may not be suitable
This device is not suitable for systems operating on standard 230V AC mains voltage, as it is specifically designed for 24V AC circuits. Attempting to connect it to a higher voltage will result in permanent damage to the unit.
Key specifications
Supply voltage: 24V AC
Maximum switching current: 16A
Adjustable time delay: 0.5 to 10 minutes
Function: Staircase timer with anti-blocking protection
How to use
The timer should be installed by a qualified electrician in accordance with local electrical regulations. It is typically mounted on a standard DIN rail within a distribution board. Once installed, the desired time delay is set using the adjustment knob on the front of the device. The control inputs are connected to the push-buttons located throughout the staircase or corridor, which trigger the relay to close the circuit for the pre-set duration.
What to consider before purchase
Verify that your lighting system operates on 24V AC
Ensure the total load of the connected lighting does not exceed the 16A capacity
Confirm that the installation space is compatible with DIN rail mounting
Usage recommendations
Regularly test the anti-blocking function to ensure the relay releases correctly after the set time interval, especially in high-traffic areas where buttons may be prone to mechanical wear.

## FAQ

### How much does the F&F ASO-203 Staircase Timer 16A 24V AC cost, and is it available for purchase?

The price is 21.49 € (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. 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/12479561/68802111_large.webp