·        Siemens 3RV1421-0KA10 Circuit Breaker, 3-Pole,

     0.9...1.25 A, N-Release 26 A, Size S0, Transformer 

     Protection, Class 10, Screw Connection, Standard 

     Breaking Capacity.

·        product designation :-  circuit breaker

·        Impulse voltage resistance / rated value :- 6000 V

·        Protection class IP / on the front :- IP20

·        Protection against electrical shock:-  finger-safe

·        Installation altitude / at a height over sea level / 

     maximum :- 2000 m

·        Resistance against shock :- 25g / 11 ms

·         Ambient temperature during transport :- -50 … +80°C  

·        Ambient temperature during storage :-  -50 … +80°C  

·        Ambient temperature during operating :-  -20 … +70°C

·        Active power loss / total / typical :- 6W

·        Operating voltage / rated value :- 690 V

·        Type of mounting :-  screw and snap-on mounting 

      onto 35 mm standard mounting rail according to 

      DIN EN 50022

·        Adjustable response current :- 0.9…1.25 A

     Breaking capacity limit short-circuit current at 690 V / 

      rated value :- 100 kA