Page 9 - B_ELSB_Cat_2022_01_MCBs

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MCBs technical details
Tripping characteristics

Tripping characteristics S300P

MCB Type S300P - B (3 ... 5 x In AC) MCB Type S300P - C (5 ... 10 x In AC)
Tripping Characteristic IEC/EN 60898-1 Tripping Characteristic IEC/EN 60898-1

I1 I2 I1= 1,13x In I2= 1,45x In ϑ R = 30°C I1 I2 I1= 1,13x In I2= 1,45x In ϑ R = 30°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
Tripping time [s] 10,000 a Tripping time [s] 10,000 a

1,000 1,000

AC AC
DC DC
0,100 0,100
b b
0,010 0,010
1 3 4 5 7 10 100 1 5 7 10 15 100
Multiple of rated current [I / In] Multiple of rated current [I / In]

MCB Type S300P - D (10 ... 20 x In AC)
Tripping Characteristic IEC/EN 60898-1

I1 I2 I1= 1,13x In I2= 1,45x In ϑ R = 30°C
10000,000
1 = tripping curve from cold state
1
1000,000 a= thermal tripping
b= magnetic tripping
1
100,000
Tripping time [s] 10,000 a

1,000

0,100 AC
DC
b
0,010
1 10 15 20 30 100
Multiple of rated current [I / In]