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.
£127.75
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.
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.
| 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 |
The IO-RO8L is an I/O expansion module that adds eight relay outputs to compatible Unitronics PLC and OPLC control systems.
The module provides 8 relay outputs for controlling external devices and loads.
The IO-RO8L operates from a 12 V DC power supply with an operating range of 10.2 to 15.6 V DC.
Yes. The relay outputs are suitable for switching both AC and DC loads within the specified electrical ratings.
The IO-RO8L can be mounted directly onto a standard DIN rail or secured using screw mounting within an electrical enclosure.
Unitronics I/O expansion modules are widely used in industrial automation systems where reliable PLC expansion, flexible control and dependable relay switching are required.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...