The Omron G3HD-X03SN-VD DC5-24 is a socket-mounted solid-state relay from the G3HD series, switching DC loads via a photocoupler. Input side accepts 4 to 28V DC; the output switches 3 to 52.8V DC. Response time is 0.5 ms — fast enough for most PLC-driven on/off cycles without contact bounce.
The 4-28V DC input range covers standard 5V, 12V, and 24V logic outputs from a PLC or sensor — no dropping resistor needed. Output voltage range of 3 to 52.8V DC handles 5V logic-level loads, 12V valves, and 24V industrial solenoids. The photocoupler provides galvanic isolation between control and load circuits, which avoids ground-loop issues in mixed-voltage panels.
Socket-mount package (0.84 x 1.1 x 1.43 in) clips into a standard relay socket on a DIN rail or panel. Rated for -30 to 80 °C operating ambient — fine for unheated cabinets and warm enclosures alike. Status indicator on the relay gives a quick visual on coil state during troubleshooting.