Intermediate relays are essential components in industrial automation and control systems, acting as intermediaries between low-power control circuits and high-power loads. These relays typically feature compact designs, reliable switching capabilities, and compatibility with various voltage levels (e.g., 12V, 24V, 120V AC/DC). Common products in this category include general-purpose plug-in relays, PCB-mounted relays, solid-state relays, and time-delay relays. Key specifications often include contact configurations (SPDT, DPDT), coil voltages, switching current ratings (e.g., 5A-20A), and isolation voltage. Applications range from equipment interlocking and signal amplification to motor control and safety circuit implementations in factory automation, PLC systems, and electrical panels.