# Hitch control unit ORNO R4-12.40 with PAM and block, symmetrical

**URL:** https://aio.lv/en/product--orno-r4-1240--11011237
**Data updated:** 2026-03-07 18:12 (EET)
**Category:** Car Accessories
**Manufacturer:** ORNO
**Manufacturer code:** R4-12.40
**EAN:** 5907438279532
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 27.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 23.13 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--orno-r4-1240--11011237

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

ORNO R4-12.40 hitch control unit (ELEKTRA R4) is a symmetrical module with PAM function and integrated block. Designed to manage hitch operations, it provides control and locking features for trailer coupling systems. Suitable for installations requiring a compact control device with PAM support and mechanical/electrical blocking for secure attachment.

## Long description

ORNO R4-12.40 hitch control unit (ELEKTRA R4) is a compact, symmetrical control module engineered to manage trailer coupling operations. It integrates PAM (Pulse Adaptive Modulation) functionality and an internal block mechanism to provide coordinated control of electrical and mechanical locking for hitch systems. The unit is intended for installations where compact size, precise control of locking sequences and reliable blocking are required.
Advantages
The unit combines PAM-based control logic with an integrated block, enabling smooth actuator control and automatic locking verification within a single compact device. Symmetrical design allows identical behavior for left and right signal configurations, simplifying wiring and installation. Built for straightforward integration, the module reduces the need for multiple discrete components and supports consistent operation of trailer coupling systems.
Suitable for
Control of trailer hitch actuators and electric locking mechanisms
Applications requiring compact control electronics with integrated blocking
Installations where PAM signal handling improves actuator response and precision
Retrofit or OEM use in vehicles with standardized hitch interfaces
Key specifications
Form factor: compact symmetrical control module suitable for in-vehicle mounting
Control method: PAM (Pulse Adaptive Modulation) support for actuator driving
Integrated function: internal block for mechanical/electrical locking coordination
Interface: inputs and outputs designed for direct connection to coupling actuators and vehicle signal circuits
Operational focus: sequence control and locking verification for trailer coupling systems
How to use
Mount the control unit in a location protected from direct moisture and excessive heat, following vehicle manufacturer recommendations for electronic modules. Connect power, ground and control inputs according to wiring diagrams provided by the installer or system supplier, ensuring correct polarity and secure terminals. Interface the module outputs to the hitch actuator and locking sensor circuits; the PAM function will modulate actuator drive pulses while the integrated block coordinates locking commands. After wiring, perform functional checks to verify that the actuator responds to control signals and that the block engages and releases as expected during coupling and uncoupling operations.
Usage recommendations
Use compatible actuators and sensors rated for automotive environments and verify that wiring and fuses match the vehicle electrical system. Regularly inspect connectors and mounting points for corrosion or looseness. For installation and adjustments follow vehicle-specific guidelines and, if needed, consult a professional installer to ensure safe and reliable hitch operation.

## FAQ

### How much does the Hitch control unit ORNO R4-12.40 cost, and is it available for purchase?

The price is 27.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 29 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 16.07.2026 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/11011237/61663969_large.webp