Engineering
32
01/11 MN03402002Z-DE/EN
Example: I
A
/I
N
= 6, t
E
= 10 s
Figure 5:
Tripping characteristic for motor-protective circuit-
breaker
The motor is reliably protected.
Short-circuit protection
with motor-protective
circuit-breakers
The following table 2 shows the short-circuit breaking
capacity of the PKZM4/XTPR…DC1 motor-protective circuit-
breakers.
Fuse can be interconnected in the upstream circuit to
increase the switching capacity to 100 kA.
2
5
20
50
200
1
2
5
10
20
40
1
2
5
10
20
2h
1.5
2
3
4
6
8 10
15
20
30
x
I
r
t
min
s
ms
Summary of Contents for PKZM4/XTPR DC1 Series
Page 14: ...10 01 11 MN03402002Z DE EN...
Page 18: ...14 01 11 MN03402002Z DE EN...
Page 22: ...18 01 11 MN03402002Z DE EN...
Page 24: ...20 01 11 MN03402002Z DE EN...
Page 34: ...30 01 11 MN03402002Z DE EN...
Page 38: ...34 01 11 MN03402002Z DE EN...
Page 42: ...38 01 11 MN03402002Z DE EN...
Page 44: ...40 01 11 MN03402002Z DE EN...
Page 55: ...51 01 11 MN03402002Z DE EN...
