72 / 248
A-58
Functions and
characteristics
Switch-disconnectors
Characteristics and performance of Compact
NSX switch-disconnectors from 100 to 630 NA
Installation standards require upstream
protection. However Compact NSX100 to
630 NA switch-disconnectors are self-
protected by their high-set magnetic
release.
Common characteristics
Rated voltages
Insulation voltage (V)
Ui
800
Impulse withstand voltage (kV)
Uimp
8
Operational voltage (V)
Ue
AC 50/60 Hz
690
Suitability for isolation
IEC/EN 60947-3 yes
Utilisation category
AC 22 A/AC 23 A - DC 22 A/DC 23 A
Pollution degree
IEC 60664-1
3
PB103199-39
Compact NSX100 to 250 NA.
PB103271
Compact NSX400 to 630 NA.
Switch-disconnectors
Electrical characteristics as per IEC 60947-3 and EN 60947-3
Conventional thermal current (A)
Ith 60 °C
Number of poles
Operational current (A) depending on
the utilisation category
le
AC 50/60 Hz
220/240 V
380/415 V
440/480 V
(2)
500/525 V
660/690 V
DC
250 V (1 pole)
500 poles (2 poles in series)
750 V (3 poles in series)
Short-circuit making capacity
(kA peak)
lcm
min. (switch-disconnector alone)
max. (protection by upstream circuit
breaker)
Rated short-time withstand current
(A rms)
lcw
for
1 s
3 s
20 s
Durability (C-O cycles)
mechanical
electrical
AC
440 V
In/2
In
690 V
In/2
In
DC
250 V (1 pole) and In/2
500 V (2 poles in series)In
Positive contact indication
Pollution degree
Protection
Add-on earth-leakage protection
By Vigi module
By Vigirex relay
Additional indication and control auxiliaries
Indication contacts
Voltages releases
MX shunt release
MN undervoltage release
Voltage-presence indicator
Current-transformer module
Ammeter module
Insulation monitoring module
Remote communication by bus
Device-status indication
Device remote operation
Operation counter
Installation / connections
Dimensions (mm)
¿[HG IURQW FRQQHFWLRQV
2/3P
W x H x D
4P
Weight (kg)
¿[HG IURQW FRQQHFWLRQV
3P
4P
Source-changeover systems (see chapter on Source-changeover systems)
Manual source-changeover systems
Remote-operated or automatic source-changeover systems
(1)
2P in 3P case.
(2)
Suitable for 480 V NEMA.
559E1700.indd
version: 1.0