Relay Board 4ch

The PIERRE Pro Relay Board 4ch is designed to provide reliable switching for smart home automation. It features four relay channels, each supporting a maximum load of 2.5A with a wide output voltage range of 20V to 240V AC, making it adaptable for various electrical loads. 

This board operates on a 12V DC input and incorporates comprehensive safety features such as reverse polarity protection to prevent damage, over-voltage protection, and short circuit protection for enhanced reliability. Its compact and lightweight design enables easy integration into DIN rail systems, ideal for structured installations in automation projects.

The PIERRE Pro Relay Board 4ch using solid-state relay (SSR), an electronic switching device that uses semiconductor components (such as triacs, thyristors, or transistors) instead of mechanical contacts to switch a load on or off.

Short Technical Description:

A solid-state relay works by receiving a low-power control signal (typically DC), which activates an optocoupler (opto-isolator). The optocoupler provides galvanic isolation between the control and load sides. When triggered, the internal semiconductor switch (like a triac for AC loads) conducts, allowing current to flow through the load. When the control signal is removed, the device stops conducting.

Key Characteristics:

• No moving parts → silent and durable

• Fast switching

• Electrical isolation between input and output

• Low control voltage with capability to switch high-voltage loads