Indoor distribution boxes typically contain between 3 to 4 sockets, depending on the model and application.

Indoor distribution boxes, also known as junction boxes or wall-mounted distribution boxes, are designed to safely distribute electrical power to multiple circuits within protected environments like homes, offices, or utility rooms . The number of sockets in these boxes varies by design and intended use. For example, the Safetyhawk SH-POE-RAK67-WP indoor junction box features three socket outlets, making it suitable for multiple connections in a compact setup . Another versatile indoor distribution box is equipped with four UK 13A sockets, providing additional connection points for devices or equipment . The number of sockets is influenced by factors such as the internal volume of the box, the number of circuits it supports, and the type of protective devices installed, like MCBs or RCDs . Smaller boxes may only accommodate 2–3 sockets, while larger or more industrial models can support 4 or more, often including space for wiring and cable management . When selecting an indoor distribution box, it is important to consider the total load, number of devices, and future expansion, ensuring the box has sufficient sockets and internal space for safe and organized wiring.