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Finder 8A.04.9.024.8320 8A Series - OPTA Arduino Programmable Logic Relay
MPN: 8A.04.9.024.8320
Alt. SKU: 8A0490248320
Special Price
£168.31
£140.26
Regular Price
£224.41
Finder 8A.04.9.024.8320 8A Series - OPTA Arduino Programmable Logic Relay is available to buy in increments of 5
Why Choose the Finder 8A.04.9.024.8320 OPTA Advanced 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.
At a Glance
- Supply voltage: 12 to 24 V DC
- Inputs: 8 configurable digital or 0-10 V analogue
- Outputs: 4 relay outputs, 10 A AC1 at 250 V AC (NO)
- Interfaces: Ethernet RJ-45, USB-C, RS-485 Modbus RTU, Wi-Fi and BLE
- Programming: Arduino IDE or IEC 61131-3 environments
- Mounting: DIN-rail EN 60715
- Operating temperature: minus 20 Â CC to plus 55 Â CC
- Variant: OPTA 8A.04 Advanced â model 8A.04.9.024.8320
Key Benefits
- Wireless built in: Wi-Fi and BLE enable dashboards, mobile tools and cable-free commissioning.
- Fieldbus ready: RS-485 Modbus RTU for straightforward machine and plant integration.
- Flexible I/O: 8 inputs selectable as digital or 0-10 V analogue for direct sensor connection.
- Industrial switching: 4 x 10 A relay outputs to drive contactors, solenoids and utility loads.
- Developer choice: Arduino workflows or classic IEC 61131-3 to suit your team.
Technical Specifications
- Manufacturer: Finder S.p.A.
- Series and model: OPTA 8A â 8A.04.9.024.8320 (Advanced)
- Rated supply: 12 to 24 V DC
- Inputs: 8 x DI or AI 0-10 V configurable
- Outputs: 4 x relay NO, 10 A AC1 at 250 V AC
- Ports: USB-C, RJ-45 Ethernet, RS-485 Modbus RTU
- Wireless: Wi-Fi and Bluetooth Low Energy
- Mounting: DIN-rail EN 60715
- Operating temperature: minus 20 Â CC to plus 55 Â CC
- Typical applications: OEM machines, networked monitoring, IIoT retrofits, plant gateways
Installation note: Mount on DIN-rail EN 60715 and power from a clean 12 to 24 V DC supply. Configure input type per channel (digital or 0-10 V) to match sensors. Verify relay load ratings and inrush; interpose a contactor for heavy inductive loads. Use USB-C for initial setup and firmware, Ethernet or RS-485 for plant networks, and provision secure Wi-Fi credentials when enabling wireless.
Frequently Asked Questions
How is this product installed or mounted?
It is designed for DIN-rail EN 60715 installation, making it suitable for neat, modular wiring in control panels.
Is this product suitable for use in industrial control panels?
Yes. It is specified with an operating temperature range of minus 20 Â CC to plus 55 Â CC, which supports use inside suitably enclosed electrical panels.
Can all inputs be used as analogue
Yes. All 8 inputs can be configured as 0-10 V analogue or used as standard digital inputs.
How are the relay outputs rated
There are 4 normally open relay outputs rated 10 A AC1 at 250 V AC. For high inrush or inductive loads, use an interposing contactor and fit snubbers where appropriate.
Which tools can I use to program it
Program with the Arduino IDE or an IEC 61131-3 environment. USB-C is used for programming and diagnostics. Some variants in the 8A.04 family also support Codesys on specific part numbers.
Is wireless always enabled
No. Wi-Fi and BLE can be disabled if your site policies require wired-only operation. Use Ethernet or RS-485 in such cases.
| Manufacturer Part Number | 8A.04.9.024.8320 |
|---|---|
| Alternative Product SKU | 8A0490248320 |
| Manufacturer | Finder |
| Range | 8A |
| Barcode | 8012823445427 |
| HS Code | 85371098 |
| Rated current | 10A |
| Contact Configuration | 4 NO (SPST) |
| Max. peak current | 15A |
| Max. switching voltage (control contacts) | 400VDC |
| Rated voltage | 250VAC |
| Rated load AC1 | 2500VA |
| Rated load AC15 (230 V AC) | 500VA |
| Minimum switching load | 300mW (5V/5mA) |
| Output operate/release time | 6/4ms |
| Contact material | AgNi |
| Nominal voltage DC | 12-24VDC |
| Operating range | 10.2-27.6VDC |
| Software Included | Arduino IDE or Arduino PLC-IDE |
| Height | 84mm |
| Width | 70mm |
| Depth | 56.8mm |
| Packed Quantity | 5 |
| Country of Manufacture | Italy |
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