# ORNO Time Relay OR-PRE-452/UNI — adjustable timed switching relay

**URL:** https://aio.lv/en/product--orno-or-pre-452uni--11784868
**Data updated:** 2026-03-08 22:56 (EET)
**Category:** Control Systems
**Manufacturer:** ORNO
**Manufacturer code:** OR-PRE-452/UNI
**EAN:** 5904988904938
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 46.49 €
**Prices and availability valid until:** 2026-08-20 23:59
**Price without VAT (21%):** 38.42 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--orno-or-pre-452uni--11784868

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 04.08.2026 | free |
| Pickup points | 07.08.2026 | 1.79 EUR |
| Courier delivery to door | 07.08.2026 | 4.99 EUR |

## Summary description

ORNO OR-PRE-452/UNI is a time relay designed for switching electrical circuits for a set period. The unit provides timed on/off control for lighting, motors or other loads where temporary activation is required. It features adjustable timing function and compact design for installation in control panels or DIN-rail setups. Suitable for automation tasks and time-controlled operations.

## Long description

ORNO Time Relay OR-PRE-452/UNI is a compact adjustable timed switching relay designed to control electrical circuits for a defined period. The unit provides timed on/off control suitable for lighting, small motors and other electrical loads requiring temporary activation. Its compact form factor allows installation in control panels and on DIN-rail systems, making it practical for automation and time-controlled operations.
Advantages
The relay offers adjustable timing settings that allow precise control of activation duration, and its simple mechanical or electronic adjustment makes it easy to configure onsite. Its compact design optimizes space in distribution cabinets and DIN-rail assemblies while maintaining reliable switching performance. The device is intended for repeatable timed cycles and supports integration into standard electrical installations for straightforward automation tasks.
Suitable for
 Timed lighting control in corridors, stairwells or outdoor areas
 Controlling small motors and pumps for set intervals
 Automation tasks in control panels and industrial cabinets
 Temporary activation of heating, ventilation or auxiliary loads
Key specifications
 Function: adjustable timed switching relay for on/off control
 Mounting: compact design for DIN-rail or control panel installation
 Adjustability: user-settable timing range for activation duration
 Application: suitable for lighting, motors, pumps and auxiliary loads
 Control type: single-channel time control for temporary activation
How to use
Install the relay on a compatible DIN-rail or inside a control panel following local electrical codes. Connect the input power and load circuits according to the wiring diagram supplied with the device. Set the required time interval using the adjustable timing control, then activate the relay via the control input or trigger circuit. The relay will switch the load for the configured period and then return to its default state; repeat cycles operate according to the chosen settings. Ensure power is isolated before wiring or maintenance.
Usage recommendations
Use the relay within its rated voltage and load limits, and verify compatibility with the controlled device (motor, lamp, pump). For installations in dust-prone or humid environments, place the relay inside an appropriate enclosure. Regularly inspect electrical connections and mounting to maintain reliable timed operation.

## FAQ

### How much does the Time Relay ORNO OR-PRE-452/UNI cost, and is it available for purchase?

The price is 46.49 € (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 04.08.2026 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 ORNO 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 ORNO 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/11784868/67180991_large.webp