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Motor-protective circuit-breakers PKZM01, PKZM0, PKZM4, PKE
2010
CA08103002Zen-US
www.eaton.comEngineering
Protection of PVC-insulated cables against thermal overload on short-circuits
The table specifies which minimum conductor cross-sections are protected by motor-protective circuit-breaker PKZ(M) up to their rated conditional short-circuit current I
q
.
1-
and 2-pole-connected PKZM0, PKZM4 and PKZ2
with AC and DC
1 3 5
2 4 6
I
>
I
>
I
>
1
3 5
2
4 6
I
>
I
>
I
>
2-
pole-connected PKZM0(1) and PKZM4 with CL-PKZ0
1
3 5
1 3 5
2
L1
CL-PKZ0
PKZ0Z
N
4 6
2
4 6
I> I> I>
I>> I>> I>>
Min. cross-section protected
380 – 415
V, 50 Hz, Cu mm
2
Device
Part no.
Min. cross-section protected
380 – 415
V, 50 Hz, Cu mm
2
Device
Part no.
4
2.5 1.5 1
0.75
PKZ2/ZM-0.6
PKZM0-0,16
...
...
PKZ2/ZM-2.4
PKZM0-6.3
PKZ2/ZM-4
PKZM0-10
PKZ2/ZM-6
PKZM0-12
PKZ2/ZM-10
PKZM0-16
PKZ2/ZM-16
PKZM0-20
PKZ2/ZM-25
PKZM0-25
PKZ2/ZM-32
PKZM0-32
PKZ2/ZM-40
PKZM4-16
PKZM4-25
PKZM4-32
PKZM4-40
PKZM4-50
PKZM4-58
PKZM4-63
PKZM0-...T tripping characteristics (not for PKM0-...), PKZM01
PKZM0...-T
PKZM0-...,
PKZM01
min
s
ms
2
5
20
50
200
1
2
5
10
20
40
1
2
5
10
20
2
h
1.5 2
3 4
6 8 10 15 20 30
x I
r
20
x I
u
14
x I
u
2
5
20
50
200
1
2
5
10
20
40
1
2
5
10
20
2
h
1.5 2
3 4
6 8 10 15 20 30
PKZM4-...
min
s
ms
x I
r
14
x I
u
PKZ, PKZM