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A-42
Control and disconnection
Compact NS1600bNA to 3200NA
switch-disconnectors
Installation standards require upstream protection.
However, Compact NS1600b to 3200NA switch-
disconnectors are self-protected for all currents higher
than 130 kA peak.
Functions and characteristics
PB104838
Compact NS2000NA.
(1)
Suitable for 480 V NEMA.
Compact switch-disconnectors
Number of poles
Control
manual
toggle
direct or extended rotary handle
electric
Connections
fixed
front connection
rear connection
withdrawable (on chassis)
front connection
rear connection
Electrical characteristics as per IEC 60947-3 and EN 60947-3
Conventional thermal current (A)
Ith
60 °C
Rated insulation voltage (V)
Ui
Rated impulse withstand voltage (kV)
Uimp
Rated operational voltage (V)
Ue
AC 50/60 Hz
Rated operational current
le
AC 50/60 Hz
220/240 V
380/415 V
440/480 V
(1)
500/525 V
660/690 V
Short-circuit making capacity
lcm
(kA peak)
Short-time withstand current
lcw
(A rms)
3 s
Integrated instantaneous protection (kA peak ±10 %)
Suitability for isolation
Durability (C-O cycles)
mechanical
electrical
AC
440 V
AC23A/In
Positive contact indication
Pollution degree
Protection
Add-on earth-leakage protection
combination with Vigirex relay
Additional indication and control auxiliaries
Indication contacts
Voltage releases
MX shunt release
MN undervoltage release
Installation
Accessories
escutcheons
Dimensions (mm)
fixed
3P
W x H x D
4P
Weight (kg)
fixed
3P
4P
Source-changeover system (see section "on source-changeover systems")
Manual source-changeover systems, remote-operated and automatic