A separate circuit breaker should be planned for each circuit, for example for a specific lighting group. Depending on requirements, contactors, time relays, twilight switches or KNX actuators can also be integrated if automated or intelligent control of the lighting . Use to control 2 groups of luminaires independently of each other (same circuit, separate control) or to control 2 individual circuits of luminaires (2 protective devices at the distribution board (s) - must be the same phase). Regardless of application, these Distribution Boxes support standard. Another important component of a distribution box is the circuit breaker, also known as the LS switch. It detects overloads and short circuits and prevents cables from overheating due to excessive currents. Fixed appliance (or individual). Example: Need a circuit for your 1,800W microwave? Calculator Tip: Tools like Desmos' scientific calculator make light work of conversions. You're not just calculating numbers—you're designing a system that matches how you live. This will include the exhaust fan/light combo (with associated switches wired via a short section of 12/3). Main Switch: This is the primary control point for the entire electrical system, allowing the entire system to be shut down quickly in an emergency or for maintenance. Room Socket Circuits (X): By having.