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Barix R6

Universal Modbus/RTU controlled remote IO device, featuring 6 high power Relays, line voltage rated

The Barix R6 is a universal, low cost, small form factor I/O extension device which connects to a host via Modbus/RTU. The six 250V/16A rated relays are controlled using Modbus/RTU commands via the serial interface Special power savings features keep the active power of the device low even if all relays are activated.

Main Features

  • Relay Output (6)
  • RS-485 Serial Port (1)
  • Supply Voltage (9-30V)


Designed in Switzerland and installed in thousands of locations internationally, the Barix control products have poven themselves as a very reliable, versatile product solving interfacing, data collection and control problems effectively, world wide.


Works with

Technical Specifications


6 relays (250 VAC 10 A, 16 Amax <1sec) on screw block with common, NO (normally open) and NC (normally closed) contacts

for wires AWG 26 – AWG 14 / 0.15 – 2.5 mm²


RS-485 / Power / Expansion

Power/RS-485 on detachable screw block for wires AWG 28 – AWG 16 / 0.08 – 1.3 mm²

2 extension connectors (3"/75 mm cable incl.)


RS-485 / Protocol

RS-485 (2-wire), 9'600/19'200 Baud, 8 bit, Even/No parity software configurable,

Modbus/RTU protocol


1 LED for power indication

1 LED for RS-485 active send indication

6 LED for relay status indication

Internal connector for default settings jumper


Power supply requirements

12 to 24 VAC / 9 to 30 VDC

3.5 Watt max. (all relays active)



high quality plastic, 220 grams, DIN-rail mount.

4.13" x 3.34" x 2.83"/105 mm x 85 mm x 32 mm



Min. 237 000h acc. to MIL217F at 25°C ambient temperature

Ethernet Connector



Order number: 2008.9091

Use Cases

Voice Evacuation Systems with 6 Relays

Documents & Downloads

Product Sheets

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