#Application
-TKM9 series molded case circuit breaker is applicable circuit of AC 50Hz (or 60Hz), rated insulation Voltage 660V, rated operating Voltage underAC 660V, 250V(DC), rated operating current 10A-800A, for distribute energy of electricity and infrequent making and breaking circuit, in normal conditions.
-The MCCB rated current under 400A ,They are provided with the function of the protection against overload and short circuit and undervoltage. The MCCB complies with standard of IEC 947-2, GB14048.2, GB14048.4 and so on.
#Tripping characteristics of MCCB
-The thermodynamic release of the breaker has the advantages of inversing time-delay while the instantaneous operation as shown on table 1 (distribation circuit breaker) and table 2 (motor protection circuit breaker).
#Main technical specifications
*Type: TKM9-125E, TKM9-125S, TKM9-160S, TKM9-160H, TKM9-250S, TKM9-250M, TKM9-400S, TKM9-400M, TKM9-400H, TKM9-630M, TKM9-630H, TKM9-800S, TKM9-800M, TKM9-800H
*Rated current (A): from 12.5 to 800 (12.5, 16, 20, 25, 32, ...125, 160, 180, ...500, 630, 700, 800)
*Pole number: 2, 3, 4
*Rated insulation voltage(V): 660V
*Rated operating voltage (V): 380V, 660V
*Ultimate short circuit breaking capacity (kA):
1)AC 380V (400): 15,, 25, 35, 50, 65, 80
2)AC 660V (690): 8, 10, 16, 18, 20, 25, 30
3)DC 250: 20, 40
*Series short circuit breaking capacity (kA)
AC 380V(400): 7.5, 16, 18, 25, 30, 48, 60
*Operation performance:
1)Load: 1000, 2000, 3000, 4000
2)Unload: 4000, 6000, 7000
*Overall dimensions:
1)L: 120, 170, 254, 268
2)W: 3P-76, 90, 105, 140, 210; 4P-100, 120, 140, 180, 280
3)H: 70, 1035