Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
Finder 8A.04.9.024.8320 8A Series – OPTA Arduino Programmable Logic Relay
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.
£157.09
Why Choose the Finder 8A.04.9.024.8320 OPTA ADVANCED Programmable Logic Relay [8A.04.9.024.8320]?
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.
Key Features
- OPTA ADVANCED programmable logic relay
- 8 digital/analog inputs (0–10 V, 0–24 V)
- 4 NO relay outputs, 10 A
- USB Type-C, Ethernet and Modbus RS485
- Wi-Fi and Bluetooth Low Energy (BLE)
- IEC 61131-3 and Arduino IDE programmable
Applications
- Wireless-enabled machine control
- Pump and control panel automation
- IIoT and remote monitoring
- Building automation
Trusted By Customers Worldwide
"A dependable choice we specify for reliable industrial control and automation builds." Controls Engineer, UK
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Logic Relay (base unit) | |
|---|---|---|
| Current | 8 A | |
| Coil / Supply Voltage | 12 V DC, 24 V DC | |
| 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 |
Frequently Asked Questions
What does the ADVANCED version add?
On top of USB-C, Ethernet and RS485, the ADVANCED (8320) adds Wi-Fi and Bluetooth Low Energy (BLE).
How is the OPTA programmed?
With standard IEC 61131-3 languages (Ladder, FBD, etc.) and with the open-source Arduino IDE.
What I/O is available?
8 digital/analog inputs (0–10 V, 0–24 V) and 4 NO relay outputs rated 10 A.
What is the product code for this item?
The product SKU / order code is 8A.04.9.024.8320.
Where can I find standards and approvals?
Please refer to the manufacturer's data sheet for full standards, approvals and detailed specifications.
