A three phase distribution box helps control and share electricity. Electrical equipment is installed under the switch box, forming a three-level distribution. "Two level protection" mainly refers to the use of leakage protection measures. With a 3 phase electrical distribution panel, you can safely divide power from the main source and distribute it to various areas or machines throughout your. In construction power environments, the Powbinet system plays a crucial role in three-level power distribution and three-level protection.