271210 Electrical apparatus for switching or protecting electrical circuits, for a voltage > 1000 V

27121010 Fuses for a voltage > 1 kV 27121020 Automatic circuit breakers 27121030 Isolating switches and make-and-break switches 27121040 Lightning arresters, voltage limiters and surge suppressors for a voltage > 1 kV 27121090 Other apparatus for switching... electrical circuits > 1000 V