What is the purpose of terminals identified by a green color in electrical devices?

The purpose of terminals identified by a green color in electrical devices is to signify grounding connections. Grounding is a critical safety feature in electrical systems, ensuring that excess electricity has a safe path to the ground, which helps prevent electrical shocks and equipment damage. The use of green is standardized in many electrical codes and practices, making it consistently recognizable for workers in the field. This color-coding assists technicians and electricians in quickly identifying grounding points during installation, maintenance, or troubleshooting of electrical systems, thus promoting safety and efficiency in their work. The other choices do not correspond to the specific safety and identification purpose served by the color green in electrical devices.