{"product_id":"finder-opta-din-logic-relay","title":"Finder OPTA Advanced - 8A.04.9.024.8320 - Din Rail Mount PLC Style Microcontroller Arduino","description":"\u003ch1\u003eFinder OPTA Advanced - 8A.04.9.024.8320 - Din Rail Mount PLC Style Microcontroller Arduino\u003c\/h1\u003e\n\u003ch2\u003eFlexible Programmable Logic Relay for Industrial and Arduino-Based Projects\u003c\/h2\u003e\n\u003cp\u003eThe Finder OPTA 8A.04.9.024.8320 is a programmable logic relay designed for smart control, automation, and connected monitoring in one compact unit. It combines the practical switching power of an industrial relay with the flexibility of a programmable controller, making it useful for control panels, water management, HVAC, building automation, packaging equipment, and many other modern control applications.\u003c\/p\u003e\n\u003cp\u003eIt is also a strong fit for advanced hobbyists, makers, and prototype developers who want a more rugged, DIN-rail-ready alternative to a basic microcontroller board. With Arduino-based programming support and industrial-style inputs and outputs, the OPTA helps bridge the gap between DIY control projects and real-world automation hardware.\u003c\/p\u003e\n\u003ch2\u003eAdvanced OPTA 8A.04.9.024.8320 Version with Wi-Fi, BLE, and Modbus\u003c\/h2\u003e\n\u003cp\u003eThis specific model, Finder part 8A.04.9.024.8320, is the advanced version in the OPTA 8A.04 series. It includes a USB Type-C port, RJ45 Ethernet port, Modbus RS485 port, and an internal Wi-Fi and Bluetooth Low Energy module. That gives you more communication options than the Lite and Plus versions, making it a better choice for connected systems, remote monitoring, and smart control projects that need flexible integration.\u003c\/p\u003e\n\u003cp\u003eThe built-in communications support includes USB, 1 Gbit Ethernet TCP\/IP or Modbus TCP\/IP, Modbus RS485, Wi-Fi, and BLE. This makes the OPTA 8320 well suited for networked control panels, home or light commercial automation, sensor-based control, and applications where wired and wireless connectivity are both useful.\u003c\/p\u003e\n\u003ch2\u003eEasy Programming with Arduino IDE and PLC Languages\u003c\/h2\u003e\n\u003cp\u003eOne of the biggest advantages of the Finder OPTA is its flexible programming environment. It supports Arduino IDE for users who prefer Arduino-style development, while also supporting IEC 61131-3 programming through Arduino PLC IDE, including LD, SFC, FBD, ST, and IL. This gives the unit appeal for both traditional automation users and hobbyists who want to step into industrial control without leaving familiar development tools behind.\u003c\/p\u003e\n\u003cp\u003eThe USB-C port is used for programming, powering the unit during configuration, and data logging support. Finder also notes compatibility with the Arduino Web Editor and Arduino IoT Cloud, opening the door for browser-based development, cloud-connected logging, graphing, and automation projects.\u003c\/p\u003e\n\u003ch2\u003eCompact Smart Relay with Strong I\/O Capability\u003c\/h2\u003e\n\u003cp\u003eThe OPTA 8A.04.9.024.8320 includes 8 configurable digital or analog inputs and 4 normally open relay outputs rated up to 10A. That makes it a strong fit for switching, monitoring, and automation tasks in compact systems where space matters but flexibility is still important.\u003c\/p\u003e\n\u003cp\u003eThe inputs support digital or analog 0 to 10 V signals, with user-configurable analog input resolution from 16 to 12 bit. Input compatibility includes PNP, NPN, and sink configurations, helping the unit adapt to a wide range of control wiring schemes. On the output side, the 4 NO relay outputs can switch loads up to 10A, making them suitable for lighting, solenoids, pumps, fans, valves, and similar control loads within specification.\u003c\/p\u003e\n\u003ch2\u003eTechnical Highlights of the Finder OPTA 8320\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Finder\u003c\/li\u003e\n\u003cli\u003ePart Number: 8A.04.9.024.8320\u003c\/li\u003e\n\u003cli\u003eSeries: Finder 8A Series OPTA\u003c\/li\u003e\n\u003cli\u003eProduct Type: Programmable Logic Relay\u003c\/li\u003e\n\u003cli\u003eSupply Voltage: 12 to 24 V DC nominal\u003c\/li\u003e\n\u003cli\u003eOperating Range: 10.2 to 27.6 V DC\u003c\/li\u003e\n\u003cli\u003eInputs: 8 configurable digital or analog inputs\u003c\/li\u003e\n\u003cli\u003eAnalog Input Range: 0 to 10 V\u003c\/li\u003e\n\u003cli\u003eMaximum Input Voltage: 24 V DC\u003c\/li\u003e\n\u003cli\u003eInput Compatibility: PNP \/ NPN \/ Sink\u003c\/li\u003e\n\u003cli\u003eAnalog Input Resolution: 16 to 12 bit user configurable\u003c\/li\u003e\n\u003cli\u003eInput Frequency: 4.5 kHz\u003c\/li\u003e\n\u003cli\u003eOutputs: 4 NO (SPST) relay outputs\u003c\/li\u003e\n\u003cli\u003eOutput Rating: 10 A rated current, 15 A maximum peak current\u003c\/li\u003e\n\u003cli\u003eRated Voltage \/ Maximum Switching Voltage: 250 \/ 400 V AC\u003c\/li\u003e\n\u003cli\u003eRated Load AC1: 2500 VA\u003c\/li\u003e\n\u003cli\u003eRated Load AC15 at 230 V AC: 500 VA\u003c\/li\u003e\n\u003cli\u003eBreaking Capacity DC1 at 24\/110\/220 V: 10 \/ 0.3 \/ 0.12 A\u003c\/li\u003e\n\u003cli\u003eMinimum Switching Load: 300 mW (5 V \/ 5 mA)\u003c\/li\u003e\n\u003cli\u003eOutput Operate \/ Release Time: 6 \/ 4 ms\u003c\/li\u003e\n\u003cli\u003eContact Material: AgNi\u003c\/li\u003e\n\u003cli\u003eConnectivity: USB-C, Ethernet, Modbus TCP\/IP, Modbus RS485, Wi-Fi, BLE\u003c\/li\u003e\n\u003cli\u003eProgramming Support: Arduino IDE and IEC 61131-3 via Arduino PLC IDE\u003c\/li\u003e\n\u003cli\u003eMaximum Program Memory: 1 MB internal\u003c\/li\u003e\n\u003cli\u003eFlash Memory: 2 MB internal plus 16 MB Flash QSPI\u003c\/li\u003e\n\u003cli\u003eMCU: STMicroelectronics STM32H747XI dual-core ARM Cortex-M7\/M4\u003c\/li\u003e\n\u003cli\u003eSecure Element: ATECC608B\u003c\/li\u003e\n\u003cli\u003eProtection Rating: IP20\u003c\/li\u003e\n\u003cli\u003eInsulation Between Input and Output Circuit: 4000 V AC\u003c\/li\u003e\n\u003cli\u003eAmbient Temperature Range: -20 C to +55 C\u003c\/li\u003e\n\u003cli\u003eMounting: 35 mm DIN rail\u003c\/li\u003e\n\u003cli\u003eWidth: 70 mm\u003c\/li\u003e\n\u003cli\u003eTerminal Type: Screw terminals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGood for Control Panels, Smart Systems, and Advanced Hobbyist Builds\u003c\/h2\u003e\n\u003cp\u003eFinder positions the OPTA series for pump control panels, electrical distribution panels, control and management of water, packaging machines, air conditioning, building automation, and forced-air ventilation. Those are its core intended uses, and they make sense for installers, OEMs, and panel builders who need a compact programmable relay with modern connectivity.\u003c\/p\u003e\n\u003cp\u003eAt the same time, the OPTA 8320 is also appealing for advanced personal projects and small-scale smart systems. It can be used for hobbyist automation, workshop controls, test rigs, sensor-driven switching, greenhouse controls, lighting automation, and custom monitoring projects where users want something more durable and expandable than a typical development board.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose the Finder OPTA 8A.04.9.024.8320?\u003c\/h2\u003e\n\u003cp\u003eIf you need a compact programmable logic relay that combines industrial-style hardware with Arduino-friendly programming and built-in wired and wireless communications, the Finder OPTA 8A.04.9.024.8320 is a strong option. It offers a practical mix of 10A relay outputs, configurable inputs, DIN-rail mounting, network connectivity, and flexible programming support for both professional automation and serious hobbyist control projects.\u003c\/p\u003e\n\u003cp\u003eRelevant part numbers in the OPTA 8A.04 series include 8A.04-8300, 8A.04-8310, and 8A.04-8320.\u003c\/p\u003e","brand":"Vetco Electronics","offers":[{"title":"Default Title","offer_id":45526180036745,"sku":"VUPN2904","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0646\/9291\/2265\/files\/8A.04.9.024.8320_Programmable_Logic_Relay_A.png?v=1776272295","url":"https:\/\/vetco.net\/products\/finder-opta-din-logic-relay","provider":"Vetco Electronics","version":"1.0","type":"link"}