8A8890241600 Finder Arduino Programmable Expansion Module

Why Choose the Finder 8A.88.9.024.1600 OPTA SSR Expansion Module?

The Finder 8A.88.9.024.1600 is a high-performance OPTA solid-state relay (SSR) expansion module designed to increase the digital I/O capabilities of Finder OPTA programmable logic relays. As part of the advanced Finder OPTA expansion module range, it combines configurable digital and analogue inputs with fast, silent solid-state outputs for applications requiring high switching frequency, long operational life and reliable electronic control.

Designed for seamless integration with Finder OPTA controllers, the module connects via the dedicated AUX expansion port and can be installed alongside additional expansion modules to create scalable automation systems. Its solid-state outputs eliminate mechanical contact wear, making it ideal for applications where traditional relay outputs may be subject to frequent switching cycles.

With 16 configurable digital or 0-10 V analogue inputs and 8 SSR outputs rated at 3 A DC, the 8A.88.9.024.1600 is ideally suited to industrial automation, HVAC systems, machine control, renewable energy systems and advanced building management applications.

Key Advantages

• Dedicated OPTA SSR expansion module.
• 16 configurable digital or analogue inputs.
• 8 solid-state relay outputs.
• 3 A DC output rating per channel.
• Silent operation with no mechanical contact wear.
• Supports digital and 0-10 V analogue signals.
• Expandable architecture supporting up to 5 modules.
• Compact DIN rail mounting design.

Key Features

• Finder OPTA expansion module series.
• Model: 8A.88.9.024.1600.
• 16 configurable digital inputs.
• 16 configurable analogue inputs (0-10 V).
• 8 SSR outputs rated at 3 A DC.
• Fast electronic switching performance.
• 12-24 V DC power supply.
• AUX communication port interface.
• Compatible with Arduino IDE and Arduino PLC IDE.
• DIN rail mounting according to EN 60715.
• Status LEDs for power and outputs.
• Industrial IP20 enclosure.

Technical Specifications

• Manufacturer: Finder
• Series: OPTA Expansion Modules
• Model: 8A.88.9.024.1600
• Product type: SSR expansion module
• Supply voltage: 12-24 V DC
• Operating range: 10.6-27.5 V DC
• Digital/analogue inputs: 16
• Analogue input range: 0-10 V
• SSR outputs: 8
• Output current: 3 A DC per channel
• Maximum switching voltage: 33 V DC
• Maximum switching power: 36 W
• Communication: AUX expansion port
• Maximum expansion modules: 5
• Protection rating: IP20
• Mounting type: DIN rail EN 60715
• Operating temperature: -20°C to +50°C
• Humidity: 5-95% RH
• Dimensions (W × H × D): 70 × 88.8 × 56.5 mm
• Typical current consumption: < 200 mA

Reliable Solid-State Switching for Demanding Applications

Unlike electromechanical relay expansion modules, the Finder 8A.88.9.024.1600 uses solid-state relay technology to provide silent operation, rapid switching and extended service life. The absence of moving contacts eliminates mechanical wear and makes the module particularly suitable for high-frequency switching applications where reliability is critical.

The module integrates directly with Finder OPTA programmable logic relays and supports up to five expansion modules per controller. This flexible architecture allows automation engineers to build scalable control systems while maintaining simple installation and programming.

Typical Applications

• Industrial machine automation.
• HVAC control systems.
• Building management systems.
• Renewable energy installations.
• Pump and water treatment systems.
• Packaging machinery.
• Process automation.
• High-frequency switching applications.

Trusted by Automation Engineers Worldwide

Finder OPTA expansion modules provide a flexible and scalable automation platform, enabling engineers to expand controller functionality while maintaining reliable operation, simple integration and advanced control capabilities.