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 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	1200 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 pick-up adjustment range	2.5...5 x In
Earth-leakage protection	Without
Number of slots	6 slot(s)
Width (W)	185 mm
Height (H)	485 mm
Depth (D)	110 mm
Net weight	9.4 kg
Contractual warranty
Warranty (in months)	18
Environment
Standards	EN/IEC 60947-2
Overvoltage category	III
Electrical shock protection class	Class II on front face
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
Logistical informations
Country of origin	FR
Main
Range	ComPacT
Product name	ComPacT NSX DC
Device short name	NSX1200 DC
Product or component type	Circuit breaker
Device application	Distribution
Poles description	2P
Protected poles description	2D
[In] rated current	1200 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
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
Breaking capacity code	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
Packing Units
Package 1 Height	15 cm
Package 1 Width	19 cm
Package 1 Length	36 cm
Package 1 Weight	7.9 kg

ComPacT NSX1200N DC is a complete fixed 2-pole circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for applications using DC voltages. The breaking capacity (Icu) is 50 kA rms at 600 VDC. The operating voltage is 600 VDC. This product includes a thermal-magnetic trip device (TM-DC) with a rating of 1200 A. The TM-DC trip device provides adjustable thermal overload protection and adjustable magnetic protection. The dimensions are 350 mm x 185 mm x 110 mm (H x W x D). It is compliant with international standards (EN/IEC 60947), CCC, EAC and marine specifications.