For wet and dry vacuum cleaner.
TP = Thermal Protector, the engine shuts off when it overheats.
Bypass - Motor i.e. separate intake and cooling air, the lower part is sealed off and the electrical equipment is cooled by a built-in cooling fan. Peripheral air outlet, i.e. The intake air is blown out through the engine slots.
Overall height 128 mm, height 45 mm turbine, turbine diameter 134 mm.