Series 338 - 440 VacSelf-repairingDielectric: Polyester (MKP)Plastic case (UL 94 V-0)Epoxy sealing resin, flame-retardantWarningCapacitors are designed for connecting directly across a mains supply but should NOT be used in positions where failure of a capacitor would expose anybody to electric shock.ApprovalsCSA, UL recognisedX Class - X1