Unitronics EX-A2X isolated I/O expansion adapter for connecting compatible Unitronics PLCs to up to 8 expansion modules in industrial automation systems.
£66.50
The Unitronics EX-A2X is an isolated I/O expansion module adapter designed to interface Unitronics OPLCs with a wide range of compatible expansion modules. It enables users to significantly increase system I/O capacity while maintaining reliable communication and straightforward installation within industrial automation environments.
As part of the Unitronics expansion system, the EX-A2X provides a dependable connection between the controller and expansion modules, supporting up to 8 I/O expansion modules from a single adapter. Its isolated design helps improve system reliability while simplifying machine design and future scalability.
With support for 12 V DC and 24 V DC power supplies, DIN rail or panel mounting options, and compact dimensions, the EX-A2X is ideal for OEM machine builders, industrial control panels and automation projects requiring additional I/O capacity without replacing the main PLC.
The EX-A2X serves as the communication bridge between Unitronics OPLCs and compatible expansion modules, allowing additional digital and analogue I/O to be integrated into a control system without increasing PLC complexity. This modular architecture provides flexibility for growing automation requirements.
Its isolated design and industrial-grade construction make it suitable for demanding environments where reliability and scalability are essential. Engineers can easily expand existing installations while maintaining efficient control system performance.
| Voltage | 12 V |
|---|---|
| IP Rating | IP20 |
| Product type | I/O Expansion Module Adapter |
| Function | Expansion module interface adapter |
| Expansion capacity | Up to 8 I/O modules |
| Supply voltage | 12 V DC / 24 V DC nominal |
| Permissible voltage range | 10.2 to 28.8 V DC |
| Maximum current consumption | 650 mA @ 12 V DC, 350 mA @ 24 V DC |
| Power consumption | Approx. 4 W |
| Current supply to I/O modules | 1 A maximum from 5 V |
| Protection rating | IP20 / NEMA 1 |
| Mounting type | DIN rail or panel mounting |
| Dimensions (W × H × D) | 80 × 93 × 60 mm |
| Weight | Approx. 125 g |
| Operating temperature | 0°C to +50°C |
The EX-A2X is used to connect compatible Unitronics PLCs to expansion I/O modules, allowing additional inputs and outputs to be added to a control system.
A single EX-A2X adapter can support up to 8 expansion modules.
The adapter operates from a 12 V DC or 24 V DC power supply with a permissible range of 10.2 to 28.8 V DC.
Yes, the EX-A2X supports both DIN rail mounting and screw-mounted panel installation.
The unit features an IP20 / NEMA 1 enclosure rating for installation inside suitable control cabinets.
Unitronics expansion solutions are widely used by control engineers and machine builders to create scalable, reliable and cost-effective automation systems with flexible I/O expansion capabilities.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...