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Finder 8A.04.9.024.8310 8A Series – OPTA Arduino Programmable Logic Relay
The Finder 8A.04.9.024.8310 is the OPTA Plus programmable logic relay that adds RS-485 Modbus to the already capable OPTA platform. You get 8 configurable inputs (digital or 0-10 V analogue), 4 relay outputs rated 10 A AC1, built-in Ethernet and USB-C , plus DIN-rail mounting for fast panel integration.
£130.91
Why Choose the Finder 8A.04.9.024.8310 OPTA PLUS Programmable Logic Relay [8A.04.9.024.8310]?
The Finder 8A.04.9.024.8310 is the OPTA PLUS programmable logic relay from the 8A series – an Arduino-compatible controller that adds RS485 serial communication to the OPTA platform for industrial and building automation.
The PLUS version provides USB Type-C for programming, RJ45 Ethernet (Modbus TCP/IP) and Modbus RS485. 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 PLUS programmable logic relay
- 8 digital/analog inputs (0–10 V, 0–24 V)
- 4 NO relay outputs, 10 A
- USB Type-C for programming and data
- RJ45 Ethernet plus Modbus RS485
- IEC 61131-3 and Arduino IDE programmable
Applications
- Pump and control panel automation
- Machine control with serial devices
- Building automation
- Edge and IIoT projects
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"A dependable choice we specify for reliable industrial control and automation builds." Controls Engineer, UK
Technical Specifications
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| 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.04.9.024.8310 (PLUS) | |
| 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 |
Frequently Asked Questions
What does the PLUS version add?
Compared with the LITE model, the PLUS (8310) adds Modbus RS485 serial communication alongside USB-C and Ethernet.
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.04.9.024.8310.
Where can I find standards and approvals?
Please refer to the manufacturer's data sheet for full standards, approvals and detailed specifications.
