1.Current sensitive. 2.Current overload protectors rapid response. 3.Installs conveniently. good price for KUOYUH 88 Series Circuit Breaker Using scope:Suitable for various kinds of medium and small-scale electrical machineries , built-up socket of electric apparatuses. Technical Parameters: : 3Amp — 25Amp . 125/250V AC,50VDC 50-60Hz . × 100MΩ .Certification: UL,VDE,3C,TUV,SGS