IO-RO8L – Unitronics 8 relay outputs module 12V

IO-RO8L – Unitronics 8 relay outputs module 12V

Unitronics IO-RO8L I/O expansion module with 8 relay outputs, 12 V DC operation and DIN rail mounting for industrial automation and PLC control systems.

SKU: IO-RO8LAlt SKU: IORO8LMPN: IO-RO8L
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List Price £134.75 ex VAT
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Why Choose the Unitronics IO-RO8L I/O Expansion Module?

The Unitronics IO-RO8L is a reliable and compact I/O expansion module designed to extend the output capabilities of compatible Unitronics Vision and OPLC controllers. Featuring 8 relay outputs, this module enables industrial control systems to operate additional loads, machinery and automation devices without requiring a larger PLC platform.

Designed for machine builders, panel manufacturers and automation engineers, the IO-RO8L provides dependable relay switching performance while maintaining simple integration with existing Unitronics control architectures. The module connects via a dedicated expansion adapter and offers clear status indication for fast diagnostics and maintenance.

Operating from a 12 V DC supply, the IO-RO8L is suitable for a wide range of industrial automation applications requiring flexible relay control. Its compact footprint, DIN rail mounting capability and robust construction make it ideal for control panels, OEM equipment and industrial machinery.

Key Advantages

  • Provides 8 additional relay outputs for Unitronics PLC systems.
  • 12 V DC powered version for compatible installations.
  • Supports switching of AC and DC loads.
  • Compact design for control panel integration.
  • DIN rail or screw mounting options.
  • LED status indicators for simplified diagnostics.
  • Reliable relay isolation between control and load circuits.

Key Features

  • 8 relay outputs.
  • SPST-NO relay contacts.
  • 12 V DC nominal supply voltage.
  • Compatible with Unitronics Vision and OPLC systems.
  • Output indication LEDs for each relay channel.
  • Communication status LED.
  • DIN rail and panel mounting support.
  • IP20 protection rating.

Expand PLC Output Capacity with Confidence

The IO-RO8L enables automation engineers to add relay-controlled outputs without replacing or upgrading the primary PLC. This simplifies system expansion while reducing installation costs and engineering effort.

Relay outputs provide excellent electrical isolation and are suitable for switching contactors, solenoids, alarms, lighting circuits, valves and other industrial devices. The module integrates seamlessly into Unitronics automation platforms for scalable machine control.

Typical Applications

  • Industrial machinery and OEM equipment.
  • Factory automation systems.
  • Material handling and conveyor control.
  • Process control installations.
  • Packaging machinery.
  • Pump and valve control systems.
  • Building automation applications.
  • Electrical control panels.

Technical Specifications

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Number of I/O 8
Product Series Unitronics Vision I/O Expansion
Device Type Digital I/O Module
Coil / Supply Voltage 10.2–15.6 V DC
Digital Outputs 8
Output Type Relay
Signal Type / Function Relay
Voltage 12 V
IP Rating IP20
Product type I/O expansion module
Number of outputs 8 relay outputs
Output type SPST-NO relay
Nominal supply voltage 12 V DC
Operating voltage 10.2 to 15.6 V DC
Maximum current consumption 145 mA @ 12 V DC
Output current 5 A maximum resistive load
Maximum switching frequency 10 Hz
Protection rating IP20 / NEMA 1
Dimensions (W × H × D) 80 × 93 × 60 mm
Weight Approximately 183 g
Mounting type DIN rail or screw mounting
Operating temperature 0°C to 50°C

Frequently Asked Questions

What is the Unitronics IO-RO8L used for?

The IO-RO8L is an I/O expansion module that adds eight relay outputs to compatible Unitronics PLC and OPLC control systems.

How many outputs does the IO-RO8L provide?

The module provides 8 relay outputs for controlling external devices and loads.

What power supply does the IO-RO8L require?

The IO-RO8L operates from a 12 V DC power supply with an operating range of 10.2 to 15.6 V DC.

Can the relay outputs switch AC and DC loads?

Yes. The relay outputs are suitable for switching both AC and DC loads within the specified electrical ratings.

How is the module mounted?

The IO-RO8L can be mounted directly onto a standard DIN rail or secured using screw mounting within an electrical enclosure.

Trusted by Automation Professionals Worldwide

Unitronics I/O expansion modules are widely used in industrial automation systems where reliable PLC expansion, flexible control and dependable relay switching are required.