Description: Sound pressure level is actually a ratio of the absolute Sound Pressure and a reference level (usually the Threshold of Hearing or the lowest intensity sound that can be heard by most people).; Name: acoustic pressure level
Description: Ten times the logarithm to the base 10 of the ratio of the square of the sound pressure, p, to the square of a reference value, p0, expressed in decibels; Name: Sound pressure level
Description: classifies the scope of the protection of the electromagnetic device against direct contact, against insertion of hard foreign objects and/or infiltration through water; Name: Protection type class of the electric motor