Where are the sockets in the secondary distribution box

A secondary distribution box typically does not have standard plug-in sockets; it distributes power to branch circuits via terminal blocks or circuit connections.Function of a Secondary Distribution BoxA secondary distribution box (SDB) receives power from a main distribution box and serves as a central point to distribute electricity to multiple branch circuits, such as floors in a building or specific equipment modules . It is primarily designed for wiring connections rather than direct plug-in use. The SDB usually contains:Circuit breakers for overload and short-circuit protectionIsolating switches for safety and maintenanceResidual current devices (RCDs) to prevent electric shockTerminal blocks for connecting branch circuits Socket AvailabilityUnlike tertiary distribution boxes or final connection points, secondary distribution boxes generally do not include standard 220V or 110V sockets. Instead, they provide power to downstream circuits, which may then terminate in sockets or equipment connections. Some SDBs can be customized with snap-on extender cables or terminal blocks to feed specific loads, but these are intended for wiring rather than direct plug-in devices .ApplicationsSecondary distribution boxes are commonly used in:Construction sites to supply power to multiple floors or buildingsCommercial buildings for floor-level distributionIndustrial setups to feed machinery or motors via dedicated circuits They are designed to meet safety standards, often with rainproof exteriors and three-phase circuit breakers, ensuring reliable and protected power distribution .SummaryIn short, a secondary distribution box is a distribution hub and does not typically have sockets for direct device connection. End-use devices receive power through tertiary distribution boxes or dedicated outlets connected to the circuits fed by the SDB. This design ensures safety, circuit protection, and compliance with electrical codes.