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17/6 Circuit-breakers, switch-disconnectors
Technical overview
2010 CA08103002Z-EN
www.eaton.comCircuit-breakers
With main switch characteristics
to IEC/EN 60204 and
Isolator characteristics to
IEC/EN 60947, VDE 0660
Rated uninterrupted current
I
u
=
Rated current
I
n
Adjustable overload releases
I
r
Adjustable short-circuit releases
I
i
Delayed short-circuit releases
I
sd
Thermomagnetic releases
System and cable protection
Motor protection
I
u
I
u
I
o
I
r
I
i
I
u
I
u
I
r
I
i
A
A
A
A
A
A
A
A
A
Ambient temperature at 100%
I
u
min./max. -25/+50 °C
20
20
0.8 – 1
x
I
n
350
20
0.8 –
1
x
I
n
350
25
25
25
32
32
32
10 – 14
x
I
n
40
40
8 – 10
x
I
n
40
40
8 – 14
x
I
n
50
50
6 – 10
x
I
n
50
50
63
63
63
63
80
80
80
80
100
100
100
100
NZM1:
8 – 12.5
x
I
n
NZM2:
8 – 14
x
I
n
125
125
125
8 – 14
x
I
n
160
160
NZM1:8
x
I
n
6 – 10
x
I
n
160
200
200
250
320
400
500
Basic switching capacity
NZMB1-A... NZMB2-A...
NZMB1-M... NZMB2-M...
400/415 V kA/p.f
?
25 0.25 25 0.25
25 0.25 25 0.25
440 V
kA/p.f
?
25 0.25 25 0.25
25 0.25 25 0.25
Comfort switching capacity
NZMC1-A... NZMC2-A... NZMC3-A...
400/415 V kA/p.f
?
36 0.25 36 0.25 36 0.25
440 V
kA/p.f
?
30 0.25 30 0.25 30 0.25
525 V
kA/p.f
?
12 0.5 12 0.5 12 0.5
690 V
kA/p.f
?
8 0.5 8 0.5 8 0.5
Normal switching capacity
NZMN1-A... NZMN2-A... NZMN3-A...
NZMN1-M... NZMN2-M...
400/415 V kA/p.f
?
50 0.25 50 0.25 50 0.25
50 0.25 50 0.25
440 V
kA/p.f
?
35 0.25 35 0.25 35 0.25
35 0.25 35 0.25
525 V
kA/p.f
?
20 0.30 25 0.25 25 0.25
20 0.30 25 0.25
690 V
kA/p.f
?
10 0.50 20 0.30 20 0.30
10 0.50 20 0.30
High switching capacity
NZMH1-A-... NZMH2-A-... NZMH3-A-...
NZMH2-M...
400/415 V kA/p.f
?
100 0.20 150 0.20 150 0.20
150 0.20
440 V
kA/p.f
?
35 0.25 130 0.20 130 0.20
130 0.20
525 V
kA/p.f
?
20 0.30 50 0.25 65 0.20
50 0.25
690 V
kA/p.f
?
10 0.50 20 0.30 35 0.25
20 0.30
Notes
The stated switching capacity values are rated ultimate short-circuit breaking
capacities (
I
cu
)
Switch-disconnectors
With main switch characteristics to IEC/EN 60204 and VDE 0113
Isolating characteristics to IEC/EN 60947, VDE 0660
without
overload and short-circuit release
Rated uninterrupted current
I
u
=
Rated current
I
n
63 –
160
160 –
250
400 –
630
630 –
1600
Type N can be triggered with U/A shunt release
PN1-...
N1-...
PN2-...
N2-...
PN3-...
N3-...
N4-...
Rated short-circuit making capacity
I
cm
kA
2.8
2.8
5.5
5.5
25
25
53
Rated short-time withstand current
I
cw
(1s-current
rms
)
kA
2
2
3.5
3.5
12
12
25
NZM1, NZM2, NZM3, NZM4