NL7-63 Series DC Miniature Circuit Breaker: PV Series Circuit Breaker:NL7-63; Number of Poles:1P, 2P, 3P, 4P; Framedegree rated current (A):63; Ue Rated operating voltage (V DC):DC12V,DC24V,DC48V,DC80V,DC125V, DC250V,DC500V,600V,DC750V,DC800V,DC1000V,DC1200V; Rated Current In (A):6-10-16-20-25-32-40-50-63; Rated Impact voltage Uimp (kV):4; Ultimate breaking capacity Icu (kA):6; Run breaking capacity Ics (%Icu):75%; Mechanical durability:20000 cycles; Electrical durability:3000 cycles; Curve type:B,C,D.