# DIN-rail Time Programmer ORNO OR-PRE-451 — 100 programmable events, DIN rail mounting

**URL:** https://aio.lv/en/product--orno-or-pre-451--12083020
**Data updated:** 2026-03-13 08:54 (EET)
**Category:** Control Systems
**Manufacturer:** ORNO
**Manufacturer code:** OR-PRE-451
**EAN:** 5908254824593
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 30.16 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--orno-or-pre-451--12083020

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

ORNO OR-PRE-451 is a DIN-rail mounted time programmer with 100 programmable events. Designed for automated control of electrical circuits, it fits industry-standard DIN rails and allows scheduling of switching operations. Suitable for lighting, heating, ventilation, pumps and other applications where timed on/off control is required in residential, commercial or industrial installations.

## Long description

ORNO OR-PRE-451 is a DIN-rail mounted time programmer designed to automate on/off control of electrical circuits. The device provides up to 100 programmable events for scheduling switching operations and is compatible with standard DIN rails used in residential, commercial and industrial electrical panels. It is intended for applications such as lighting, heating, ventilation and pump control where reliable timed switching is required.
Advantages
The time programmer offers a compact DIN-rail form factor that integrates into common distribution boards and saves panel space. With 100 programmable events, it enables flexible weekly programming for multiple daily on/off cycles. The unit supports straightforward scheduling of switching times and reduces the need for manual operation, improving energy management and operational consistency. Installation is compatible with standard rail-mounted wiring practices and the device is suitable for integration into existing control layouts.
Suitable for
Automated lighting control in residential and commercial buildings
Heating systems with scheduled on/off cycles
Ventilation and extractor fan scheduling
Pump control for irrigation, water supply or circulation systems
General timed control of electrical circuits in distribution panels
Key specifications
Mounting: DIN-rail compatible housing for standard electrical panels
Programmable events: up to 100 switching events
Function: weekly scheduling with multiple on/off cycles
Application: designed for control of lighting, heating, ventilation and pumps
Installation: rail-mounted with terminals for mains wiring
How to use
Mount the ORNO OR-PRE-451 module on a standard DIN rail inside the distribution board and connect the supply and load according to local electrical codes. Program required switching times using the device interface to create weekly schedules with up to 100 events. Once programmed, the time programmer automatically operates the connected circuit according to the set schedule. For changes, adjust or add events through the interface and verify operation after each modification.
Usage recommendations
Install and wire the device following applicable electrical regulations and safety standards. Use the programmer for loads within the installation’s rated capacity and confirm compatibility with the controlled equipment. Regularly review and update scheduled events to match seasonal or operational changes and perform routine inspections of terminals and wiring.

## FAQ

### How much does the DIN-rail Time Programmer ORNO OR-PRE-451 cost, and is it available for purchase?

The price is 36.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 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 17.07.2026 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 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/12083020/67567102_large.webp