The Finder 8A.04.9.024.8320 is the OPTA Advanced programmable logic relay (PLR) that adds Wi-Fi and Bluetooth Low Energy alongside Ethernet and RS-485 Modbus RTU . With 8 configurable inputs (digital or 0-10 V analogue), 4 relay outputs rated 10 A AC1, and USB-C for programming and data logging, it brings PLC-class capability to compact control panels.
£196.36
The Finder 8A.04.9.024.8320 is the OPTA ADVANCED programmable logic relay from the 8A series – the top OPTA model, adding wireless connectivity to the Arduino-compatible platform for industrial and building automation.
The ADVANCED version provides USB Type-C for programming, RJ45 Ethernet (Modbus TCP/IP), Modbus RS485, plus Wi-Fi and Bluetooth Low Energy (BLE). Like all OPTA models it can be programmed both with traditional IEC 61131-3 languages and with the open-source Arduino IDE.
"A dependable choice we specify for reliable industrial control and automation builds." Controls Engineer, UK
| Current | 8 A |
|---|---|
| Manufacturer | Finder |
| Series | 8A Series – OPTA |
| Model | 8A.04.9.024.8320 (ADVANCED) |
| Supply Voltage | 12–24 V DC |
| Inputs | 8 digital/analog (0–10 V, 0–24 V) |
| Outputs | 4 x NO relay, 10 A |
| Programming | USB Type-C |
| Connectivity | Ethernet / Modbus TCP/IP, Modbus RS485, Wi-Fi, BLE |
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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...