271223 Apparatus for protecting electrical circuits n.e.c., for a voltage = 1000 V

27122330 Electrical apparatus for protecting electrical circuits for a voltage <= 1 kV and a current <= 16 A (excluding fuses, automatic circuit breakers) 27122350 Electrical apparatus for protecting electrical circuits for a voltage <= 1 kV and for a current > 16 A but <= 125 A (excluding fuses, automatic circuit breakers) 27122370 Electrical apparatus for protecting electrical circuits for a voltage <= 1 kV and for a current > 125 A (excluding fuses, automatic circuit breakers)