Finder OPTA 8A.58/8A.88 Programmable Logic Relay
Brand: Finder
Model Series: OPTA 8A.58, OPTA 8A.88
Model Numbers: 8A.58.9.024.1600, 8A.88.9.024.1600
Product Overview
The Finder OPTA series (models 8A.58 and 8A.88) are programmable logic relays designed for IoT applications, integrating seamlessly with the Arduino ecosystem. These devices offer flexible input and output configurations, suitable for various automation tasks.
The OPTA series is compatible with Arduino Cloud and can be programmed using the Arduino Desktop IDE or Arduino PLC-IDE. It supports expansion modules to extend its functionality.
Technical Specifications
General
| Feature | Specification |
|---|---|
| Power Supply | 12...24 V DC (±15%), Class 2 source |
| Current Consumption | < 200 mA |
| Input Type | 16 digital/analog (0...10 V) configurable via IDE |
| Operating Temperature | (-20...+50)°C [Thermometer Symbol] |
| Environmental Conditions | Open type, EN 60715 rail mounting, Humidity 5-95 RH%, Altitude 2000 m, IP20 |
Output Specifications
Model 8A.58.9.024.1600 (EMR)
| Type | Configuration | Rating |
|---|---|---|
| Output | 8 NO (SPST) Electromechanical Relay (EMR) | 6 A, 250 V AC1 |
Model 8A.88.9.024.1600 (SSR)
| Type | Configuration | Rating |
|---|---|---|
| Output | 8 NO (SPST) Solid State Relay (SSR) | 2 A, 24 V DC1 |
Physical Specifications & Connections
Dimensions
Refer to Diagram 1 for detailed dimensions. The unit is designed for EN 60715 rail mounting.
- Width: 56.5 mm
- Height: 84 mm (total), 45 mm (enclosure)
- Depth: 75.5 mm
- Unit Depth: 70 mm
- Mounting Depth: 35.5 mm
- Overall Depth: 88.8 mm
- Side Clearance: 4.3 mm
Terminal Specifications
| Terminal Type | Wire Gauge (Solid/Stranded) | Torque |
|---|---|---|
| Input/Output Terminals (9mm pitch) | (1x6/2x4) mm² / (1x10/2x12) AWG | [Torque Wrench Symbol] 0.8 Nm |
| Input/Output Terminals (9mm pitch) | (1x4/2x2.5) mm² / (1x12/2x14) AWG |
Auxiliary Port
Supports a maximum of 5 expansion modules.
Wiring and Configuration
The OPTA unit features multiple connection points for power, inputs, and outputs, as well as an auxiliary port for expansion.
Power and Input Connections (Refer to Diagram 3)
- 3a: Power Supply Terminals (12...24 V DC)
- 3b: Input Terminals (I1...I16) - Configurable as digital or analog (0...10 V) via IDE.
- 3c: Power LED indicator.
Output Connections (Refer to Diagram 3)
- 3d: Output Terminals (1...8).
- For 8A.58 (EMR): SPST Normally Open contacts, rated 10 A, 250 V AC1.
- For 8A.88 (SSR): SPST Normally Open contacts, rated 2 A, 24 V DC1.
- 3e: Output Status LED indicators (1...8).
Auxiliary Connection (Refer to Diagram 3)
- 3f: Connection for communication and auxiliary modules.
Wiring Diagrams (Refer to Diagrams 2a and 2b)
Diagram 2a illustrates the general connection scheme for the 8A.58 EMR type, showing input and output terminal configurations.
Diagram 2b illustrates the general connection scheme for the 8A.88 SSR type, also showing input and output terminal configurations.
The diagrams depict the positive and negative power connections, input terminals (I1-I16), and output terminals (1-8) with associated wiring for control signals and loads.
Expansion Module Information
Important: Expansion modules must be powered via terminal 3a and can only operate in conjunction with an OPTA controller. A maximum of 5 expansion modules can be connected in series to a single OPTA controller. Autonomous operation of expansion modules is not supported.
Software and Connectivity
Getting Started - Manual
For detailed guidance, refer to the manual: https://docs.arduino.cc/hardware/opta/
Getting Started - IDE
To program the OPTA offline, install the Arduino Desktop IDE, Arduino Cloud, or Arduino PLC-IDE. A USB-C cable is required to connect the OPTA to your computer.
Software download: https://www.arduino.cc/en/Main/Software
Getting Started - Arduino Cloud
All Arduino IoT-enabled products are supported by Arduino Cloud, enabling sensor data logging, graphical display, analysis, event activation, and home/business automation. Arduino Cloud is hosted online, ensuring up-to-date features and support.
Follow instructions to start browser-based programming and upload sketches to your board/device: https://cloud.arduino.cc
Compliance and Notes
FCC Compliance Statement
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense.
[FC Logo]
Certifications
[UL Listed E528578]
[CE Mark]
General Warning
If the device is used outside its factory specifications, the protection provided by the device may be degraded.
Arduino Cloud | Build, Control, Monitor Your IoT Projects
arduino.cc/en/Main/Software
