Power Line Capacitors What is an “X” Capacitor?
An “X” capacitor is used in Across-the-Line applications. Typically between the Hot and the Neutral power lines in North American applications and between L-1 and L-2 in European and other power line applications. The definition for “X” capacitor application is: “where damage to the capacitor will not lead to the danger of electrical shock”. The X classification, is divided into three sub-classifications, X1, X2, X3 as defined by IEC664 categories I, II III.
