G4H-DR2A

Description

Hybrid I/O module for LS H/G4 family: 8 input points (DC 12/24 V) and 8 relay output points.

The Polar Energy Assessment:

The G4H-DR2A module is listed under LS automation modules as a hybrid digital I/O module, combining 8 DC input points (12/24 V) and 8 relay outputs, making it suitable for applications requiring mixed input/output functionality in a single slot. It fits the “G4H” series of I/O modules in the LS PLC ecosystem.

Pros

• Combines input and relay output in one module, saving slot space.
• Relay outputs allow switching of loads at higher voltages/current than standard transistor outputs, giving flexibility.

Limitations

• Limited to 8 inputs + 8 outputs; for large IO counts multiple modules are needed.
• Relay outputs have slower switching and mechanical wear compared to solid state outputs; not suitable for high-frequency switching.

Typical use cases

• Control panels with mixed digital inputs and relay outputs (e.g., motor starters, solenoids) where slot economy is important.
• Retrofit of legacy systems into LS G4H platform using hybrid modules rather than separate input and output modules.