The NEMA L14-20 is a type of electrical connector used for locking power connections. It is designed for 240-volt circuits and can handle up to 20 amps of current. This connector is commonly used in outdoor and industrial applications where a secure connection is essential. The L14-20 connector features a unique design that prevents accidental disconnection. It has a four-prong configuration, including two hot wires, one neutral, and one ground. This makes it suitable for both single-phase and three-phase power systems, ensuring safe and reliable electrical connections in various settings.