Description: Construction measures for electrical operating media for preventing ignition of surrounding explosion-capable atmosphere; Name: electric motor explosion protection Type of 'e' protection
Description: Construction measures for electrical operating media for preventing ignition of the surrounding explosion-capable atmosphere; Name: Explosion protection Type of 'e' protection of the electric motor
Description: input variable to a comparing element in a controlling system, which sets the desired value of the controlled variable and is deducted from the command variable; Name: reference variable