Description
Main
Range ComPacT new generation
product name ComPacT NSX DC new generation
Device short name NSX1200 DC
Product or component type Circuit breaker
Device application Distribution
Poles description 2P
Protected poles description 2D
[In] rated current 800 A at 40 °C
[Ue] rated operational voltage 600 V DC
network type DC
Suitability for isolation Yes conforming to EN/IEC 60947-2
Utilisation category Category A
[Icu] rated ultimate short-circuit
breaking capacity
50 kA Icu at 24…300 V DC 1 pole conforming to IEC 60947-2
50 kA Icu at 300…600 V DC 2 poles in series conforming to IEC 60947-2
Performance level N 50 kA 600 V DC
Trip unit name TM-DC
Trip unit technology Thermal-magnetic
Trip unit protection functions LI
control type Toggle
Circuit breaker mounting mode Fixed
Complementary
[Ui] rated insulation voltage 750 V DC conforming to IEC 60947-2
[Uimp] rated impulse withstand
voltage
8 kV conforming to IEC 60947-2
[Ics] rated service short-circuit
breaking capacity
12.5 kA at 24…300 V DC conforming to IEC 60947-2
12.5 kA at 300…600 V DC conforming to IEC 60947-2
Mechanical durability 5000 cycles
Electrical durability 2000 cycles at 600 V In/2
1000 cycles at 600 V In
Mounting support Backplate
Mounting position Horizontal and vertical
Flat on the back
Upside connection Front
Downside connection Front
Connection pitch 45 mm
Protection type L : for overload protection (thermal)
I : for short-circuit protection (magnetic)
Trip unit rating 800 A at 40 °C
Long-time pick-up adjustment
type Ir (thermal protection)
Adjustable
[Ir] long-time protection pick-up
adjustment range
0.7…1 x In
Long-time protection delay
adjustment type tr
Fixed
Instantaneous protection pick-up
adjustment type Ii
Adjustable
[Ii] instantaneous protection pickup
adjustment range
2.5…5 x In
Earth-leakage protection Without
Number of slots for electrical
auxiliaries
6 slot(s)
Width (W) 185 mm
Height (H) 485 mm
Depth (D) 110 mm
Net weight 9.4 kg
Environment
Standards EN/IEC 60947-2
overvoltage category Class II
Electrical shock protection class Class II
Pollution degree 3 conforming to IEC 60664-1
IP degree of protection IP40 conforming to IEC 60529
IK degree of protection IK07 conforming to IEC 62262
Ambient air temperature for
operation
-25…70 °C
Ambient air temperature for
storage
-50…85 °C
Relative humidity 0…95 %
Operating altitude 0…2000 m without derating
2000 m…5000 m with derating
