In MC4 connectors, the positive and negative terminals are clearly distinguished through color coding, ensuring ease of identification and accurate connection. The positive terminal typically features a male connector with a protruding metal pin and is visually identified by its red color. Conversely, the negative terminal sports a female connector with a metal socket designed to receive the pin, and it is marked with a black color code. This straightforward color-coding scheme allows users to swiftly and confidently determine the polarity of the connector, thereby facilitating the correct and safe establishment of electrical connections. Therefore, when dealing with an MC4 connector, the red-colored side denotes the positive terminal, a feature that greatly simplifies the connection process and enhances operational efficiency.
