Page 10 - B_ELSB_Cat_2022_01_MCBs

1/10 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS - TECHNICAL DETAILS 9AKK 107991 A8329
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MCBs technical details
Tripping characteristics

Tripping characteristics S300P

MCB Type S300P - K (10 ... 14 x In AC) MCB Type S300P - Z (2 ... 3 x In AC)
Tripping Characteristic IEC/EN 60947-2 Tripping Characteristic IEC/EN 60947-2

I1 I2 I1= 1,05x In I2= 1,3x In ϑ R = 40°C I1 I2 I1= 1,05x In I2= 1,3x In ϑ R = 40°C
10000,000 10000,000
1 = tripping curve from cold state 1 = tripping curve from cold state
1 1
1000,000 a= thermal tripping 1000,000 a= thermal tripping
b= magnetic tripping b= magnetic tripping
1 1
100,000 100,000
a
Tripping time [s] 10,000 a Tripping time [s] 10,000

1,000 1,000
b
AC
AC
0,100 0,100 DC
DC
b
0,010 0,010
1 10 14 21 100 1 2 3 5 10 100
Multiple of rated current [I / In] Multiple of rated current [I / In]