Technical data

75
Protective Devices
Short Circuit Selectivity PLSM towards cylindrical fuse links
Short circuit selectivity characteristic B towards fuse links CH10x38 gG, CH14x51 gG, CH22x58 gG*)
PLSM CH10x38 gG CH15x51 gG CH22x58 gG
I
n
[A] 16 20 25 32 20 25 32 40 50 16 20 25 32 40 50 63 80 100
1 0.5 >10 >10 >10 >10 >10 >10 >10 >10 1.2 >10 >10 >10 >10 >10 >10 >10 >10
2 <0.5 0.6 1.2 3.6 0.5 1.0 5.2 >10 >10 <0.5 0.5 1.1 >10 >10 >10 >10 >10 >10
3 <0.5 0.5 0.8 1.4 0.5 0.9 3.7 >10 >10 <0.5 0.5 1.0 8.0 >10 >10 >10 >10 >10
4 <0.5 <0.5 0.7 1.2 <0.5 0.7 1.7 4.0 >10 <0.5 <0.5 0.8 2.3 5.1 >10 >10 >10 >10
6 <0.5 <0.5 0.6 0.9 <0.5 0.7 1.3 2.0 2.7 <0.5 <0.5 0.7 1.5 2.2 2.6 5.6 10 >10
10 <0.5 <0.5 0.6 0.9 <0.5 0.6 1.1 1.5 2.0 <0.5 <0.5 0.6 1.2 1.6 1.9 3.2 4.8 9.0
13 <0.5 <0.5 0.6 0.8 <0.5 0.6 1.0 1.4 1.9 <0.5 <0.5 0.6 1.2 1.5 1.7 3.0 4.3 7.7
16 <0.5 0.5 0.8 <0.5 0.5 1.0 1.4 1.8 <0.5 0.5 1.1 1.4 1.6 2.7 3.8 6.3
20 0.5 0.8 <0.5 0.9 1.3 1.6 0.5 1.1 1.4 1.6 2.6 3.7 6.0
25 0.7 0.9 1.3 1.6 1.0 1.3 1.5 2.5 3.5 5.6
32 1.2 1.5 1.3 1.5 2.4 3.3 5.2
40 1.5 1.4 2.3 3.2 5.0
50 2.1 2.9 4.5
63 2.8 4.2
In case of short circuit, there is selectivity between the miniature circuit breakers PLSM and the upstream fuses up to the specified values of the selectivity limit
current I
s
[kA] (i. e. in case of short-circuit currents I
ks
under I
s
, only the MCB will trip, in case of short circuit currents above this value both protective devices
will respond).
*) basically in accordance with EN 60898-1 D.5.2.b
Short circuit selectivity characteristic C towards fuse links CH10x38 gG, CH14x51 gG, CH22x58 gG*)
PLSM
CH10x38 gG CH15x51 gG CH22x58 gG
I
n
[A] 16 20 25 32 20 25 32 40 50 16 20 25 32 40 50 63 80 100
0.5 1.9 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10
1 <0.5 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10 >10
2 <0.5 0.6 1.2 3.6 0.5 1.0 4.5 >10 >10 <0.5 0.6 1.1 >10 >10 >10 >10 >10 >10
3 <0.5 0.5 0.8 1.4 <0.5 0.7 1.4 2.4 3.7 <0.5 <0.5 0.8 1.8 2.7 3.5 9.3 >10 >10
4 <0.5 <0.5 0.7 1.2 <0.5 0.7 1.2 2.0 2.9 <0.5 <0.5 0.7 1.5 2.2 2.7 6.7 >10 >10
6 <0.5 <0.5 0.6 0.9 <0.5 <0.5 1.0 1.4 2.0 <0.5 <0.5 0.6 1.1 1.6 1.9 4.2 7.0 >10
10 <0.5 <0.5 0.5 0.8 <0.5 <0.5 0.9 1.3 1.7 <0.5 <0.5 0.6 1.1. 1.5 1.8 2.9 4.1 7.5
13 <0.5 <0.5 0.5 0.8 <0.5 <0.5 0.9 1.3 1.7 <0.5 <0.5 0.5 1.0 1.4 1.7 2.7 3.8 6.5
16 <0.5 0.5 0.8 <0.5 <0.5 0.8 1.2 1.6 <0.5 <0.5 1.0 1.3 1.5 2.6 3.5 5.8
20 <0.5 0.7 <0.5 0.8 1.2 1.5 <0.5 0.9 1.2 1.4 2.5 3.3 5.4
25 0.7 0.8 1.1 1.4 0.9 1.2 1.4 2.3 3.2 5.0
32 1.1 1.4 1.1 1.3 2.2 3.0 4.8
40 1.3 1.2 2.0 2.8 4.6
50 1.9 2.6 4.2
63 2.3 3.7
no selectivity
no selectivity