# Relais box serial converter/repeater/isolator, ONLINE USV-Systeme CON\_R\_AUX, 12 V, 500 mA, 68×45×78 mm, 0.1 kg, black/green

**URL:** https://aio.lv/en/product--online-usv-systeme-conraux--4584395
**Data updated:** 2026-03-07 14:49 (EET)
**Category:** UPS
**Manufacturer:** ONLINE USV-Systeme
**Manufacturer code:** CON\_R\_AUX
**EAN:** 4026908002140
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 276.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 228.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--online-usv-systeme-conraux--4584395

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Relais box serial converter/repeater/isolator by ONLINE USV-Systeme (model CON\_R\_AUX). Compact module for signal conversion and isolation with 12 V input and 500 mA power consumption. Measures 68×45×78 mm and weighs 0.1 kg. Suitable for UPS control panels, alarm systems, industrial interfaces and applications requiring galvanic isolation or serial signal repeating.

## Long description

The Relais box serial converter/repeater/isolator from ONLINE USV-Systeme (model CON\_R\_AUX) is a compact interface module designed for reliable signal conversion, repetition and galvanic isolation in UPS control panels, alarm systems and industrial applications. The unit accepts a 12 V supply and draws up to 500 mA. Its small footprint (68×45×78 mm) and lightweight construction (0.1 kg) make it suitable for integration into control cabinets, DIN-rail or surface-mounted enclosures where space is limited. The black and green housing provides a clear visual distinction for wiring and mounting points.
Advantages
The device provides galvanic isolation to protect sensitive control electronics from ground loops and interference, while also functioning as a serial signal repeater or converter to extend communication range or adapt interface levels. Its low power consumption and compact dimensions reduce thermal load and installation space requirements. The straightforward design simplifies integration with UPS control circuits, alarm panels and various industrial interfaces requiring reliable relay-based switching and signal integrity.
Suitable for
 UPS control panels for remote signalling and auxiliary contacts
 Alarm and security systems requiring isolated relay outputs
 Industrial interface adaptation between different voltage levels
 Extending serial signal lines or repeating signals across longer distances
 Applications needing galvanic isolation to prevent ground loop issues
Key specifications
 Supply voltage: 12 V DC
 Maximum supply current: 500 mA
 Dimensions (W×H×D): 68 × 45 × 78 mm
 Weight: 0.1 kg
 Functionality: relay-based serial converter, repeater and galvanic isolator
 Housing colours: black and green
How to use
Mount the module in an appropriate enclosure or on a DIN rail according to available space and wiring access. Connect the 12 V DC supply to the designated input terminals, observing polarity. Wire the serial or control signal lines and relay contacts as required for your UPS, alarm or industrial interface, following the system wiring diagrams and safety standards. Verify correct operation by checking signal continuity, relay switching behaviour and isolation using suitable test equipment before placing the device into continuous service.
Usage recommendations
Install the unit in a dry, ventilated environment away from strong electromagnetic interference. Use appropriate fuses or overcurrent protection on the 12 V supply and follow local wiring regulations. For best performance, ensure ground and shielding practices are applied to serial lines and verify compatibility with the connected control system's voltage and logic levels.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 12 |
| Power consumption | 500 mA |

### Design

| Feature | Value |
|---|---|
| Product colour | Black, Green |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.1 kg |

### Other features

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 68 x 45 x 78 |
| Mounting | DIN-rail |

## FAQ

### How much does the ONLINE USV-Systeme Relais box serial converter/repeater/isolator CON\_R\_AUX cost, and is it available for purchase?

The price is 276.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 15.07.2026 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. 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 ONLINE USV-Systeme 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 ONLINE USV-Systeme 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/4584395/54803737_large.webp