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17/168 NZM circuit-breakers
Circuit-breakers, switch-disconnectors for 1000 V AC/DC
2010 CA08103002Z-EN
www.eaton.comCircuit-breakers, switch-disconnectors for1000VAC/DC
Circuit-breakers for 1000 V AC
NZMH2...S1
max. 300 A
NZMH3...S1
max. 630 A
NZMH4...S1
max. 1600 A
Rated operating voltage
U
e
V AC
1000
1000
1000
Rated uninterrupted current
I
u
A
300/50 °C
630/50 °C
1600/50 °C
Rated operational current
AC-1
300
630
1600
Rated short-circuit making capacity
1000 V 50/60 Hz
I
cm
kA
17
17
40
Rated short-circuit breaking capacity I
cn
I
cu
according to IEC/EN 60947
Operating sequence O-t-CO
I
cu
kA
10
15
20
I
cs
according to IEC/EN 60947
Operating sequence O-t-CO-t-CO
I
cs
kA
3
10
15
Utility category
A
A
A/B
Maximum operating frequency
Ops/h
120
60
60
Durability
Mechanical (of which max. 50 % trip by shunt/
undervoltage release)
Operations
20000
15000
10000
Electrical, AC-1 1000 V
Operations
3000
1000
500
Rated insulation voltage
U
i
V AC
1000
1000
1000
For use in IT electrical power networks
–
–
–
Switch-disconnectors for 1000 V DC
N2-4...S1-DC
max. 200 A
N3-4...S1-DC
max. 500 A
N4-4...S1-DC
max. 1400 A
Rated operating voltage
U
e
V DC
1000
1000
1000
Rated uninterrupted current with terminal jumpers
I
u
A
200/65 °C
500/65 °C
1400/65 °C
Rated operational current
I
e
200 (DC 22-B)
500 (DC 22-B)
1400 (DC 21-B)
Rated short-time withstand current t =0.1 s
I
cw
kA
3
6
25
Rated conditional short-circuit current
I
q
kA
15
15
–
With back-up fuse
A
g
R
200
500
–
Maximum operating frequency
Ops/h
120
60
60
Durability
Mechanical (of which max. 50 % trip by shunt/
undervoltage release)
Operations
20000
15000
10000
Electrical, 1000 V DC
Operations
2500 (DC 22-B)
1000 (DC 22-B)
500 (DC 21-B)
Rated insulation voltage
U
i
V DC
1250
1250
1250
For use in IT electrical power networks
V DC
1000
1000
1000
Notes
NZM...S1 and N...S1-DC can not be combined with withdrawable units and/or connection on rear.
Can not be combined with early-make auxiliary contacts NZM-...XHIV or box terminal NZM2-4-XKC at U
i
> 1000 V DC.
Terminal type N...S1-DC:
for 2 pole switches series connection of two poles each is required. See jumper kit NZM...-4-XKV2P
NZMH...S1, N...-4...S1-DC