Product Description:
The BDO20 388A2275P0176V2 is a specialized 16-channel DC Extension Relay Board engineered for industrial control systems, designed to expand relay switching capabilities and facilitate reliable signal routing in applications like power generation, oil and gas, manufacturing, and process automation. As a dedicated extension module, its core function is to act as an intermediary between central controllers and field-level devices—translating low-power control signals from the controller into high-current/voltage switching actions to activate or deactivate equipment such as motors, valves, solenoids, or indicator lights.
With 16 independent DC relay channels, the board offers versatile switching capacity, allowing simultaneous control of multiple devices while maintaining isolation between channels to prevent cross-talk or electrical interference. Each relay is rated for DC operation and supports specified current ratings to handle the power demands of connected loads—ensuring safe, consistent performance without overload risks. Built-in relay protection features, are often integrated to shield both the board and connected devices from voltage spikes generated during relay activation/deactivation, a critical safeguard in harsh industrial environments.
Durability is a key design focus, with the BDO20 388A2275P0176V2 constructed using industrial-grade materials to withstand extreme conditions: it operates reliably across wide temperature ranges, resists vibration and mechanical shock, and features a ruggedized PCB with corrosion-resistant coatings to protect against dust, moisture, and chemical exposure. This robust build ensures long-term functionality in demanding settings, minimizing unplanned downtime and reducing maintenance costs.
For integration and usability, the board adopts a user-friendly design. It includes standardized terminal blocks for easy wiring of power inputs, control signals, and load connections—each clearly labeled to prevent wiring errors. Mounting options align with industry norms, enabling seamless installation in control cabinets alongside other automation components. Status indicators (LEDs) for each relay channel provide real-time visual feedback, allowing operators to quickly verify whether a relay is energized or de-energized—simplifying troubleshooting and system monitoring.
