Pin-and-sleeve devices are often used to seal power connections in heavy-duty industrial applications due to their durability and consistency. Using these devices, power delivery can be protected from moisture, dirt, filth, and chemicals which are common in industrial workplaces.
There are five main types of pin and sleeve devices, namely: plugs, connectors, inlets, receptacles, and mechanically interlocked receptacles. Among these five types, mechanically interlocked receptacle is the least commonly used pin-and-sleeve device.