Discover our range of professional I/O modules and relay boards

Selio Modbus I/O modules offer a versatile and reliable solution for industrial automation and control systems. Available in 8, 16, and 24 relay configurations, these modules provide a comprehensive range of digital and analogue inputs and outputs, supporting both Modbus RTU over RS485 and Modbus TCP/IP over Ethernet. Designed for seamless integration with PLCs, HMIs, CPUs, and other Modbus-compatible devices, Selio modules are ideal for data acquisition, distributed I/O, and process automation in demanding environments.

Selio 24 | Modbus RTU I/O Module | 24 Output Relays | RS485 Industrial Relay Board Selio 16 | Modbus RTU I/O Module | 16 Output Relays | RS485 Industrial Relay Board Selio 8 | Modbus RTU I/O Module | 8 Output Relays | RS485 Industrial Relay Board

Selio

by CTA

Smart I/O boards for industrial applications, with 8, 16 and 24 relays. All equipped with built-in multiple digital and analog inputs and outputs and modbus-powered communication.

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Selio • a brand by CTA Electronics • IT09176980960 • Made in Milan, Italy • Copyright © 2025 • All rights reserved • Privacy Policy

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