Additional features
[Ui] Rated insulation voltage	800 V AC 50/60 Hz
[Uimp] Rated impulse voltage withstand	8 kV
[Ics] Rated operational breaking capacity	85 kA at 220/240 V AC 50/60 Hz corresponds to IEC 60947-2; 50 kA at 380/415 V AC 50/60 Hz corresponds to IEC 60947-2; 42 kA at 440 V AC 50/60 Hz corresponds to IEC 60947-2; 30 kA at 500 V AC 50/60 Hz corresponds to IEC 60947-2; 11 kA at 525 V AC 50/60 Hz corresponds to IEC 60947-2; 10 kA at 660/690 V AC 50/60 Hz corresponds to IEC 60947-2
Mechanical life	15000 cycles
Electrical lifetime	12000 cycles at 440 V In/2; 6000 cycles at 440 V In; 6000 cycles at 690 V In/2; 3000 cycles at 690 V In
Power dissipation per pole	19,2 W
Mounting bracket	Rear panel
Mounting position	Horizontal and vertical; lying on back
Connection on top side	front side
Connection on underside	front side
Terminal pitch	45 mm
Degree of protection	L : for overload protection (long time); SO : for short-time short-circuit protection with fixed delay; I : for instantaneous short-circuit protection
Trigger power	320 A at 65 °C
Motor release class	5; 20; 10
Additional motor protection	Phase unbalance
Long-time pick-up adjustment type Ir (thermal protection)	9 adjustable settings
[Ir] Long-time protection pick-up adjustment range	160 - 320 A
Long-time protection delay adjustment type tr	Fixed
[tr] setting range of long-time delay	120 s at 1.5 x Ir for trip class 5; 6.5 s at 6 x Ir for trip class 5; 5 s at 7.2 x Ir for trip class 5; 240 s at 1.5 x Ir for trip class 10; 13.5 s at 6 x Ir for trip class 10; 10 s at 7.2 x Ir for trip class 10; 480 s at 1.5 x Ir for trip class 20; 26 s at 6 x Ir for trip class 20; 20 s at 7.2 x Ir for trip class 20
Thermal storage	20 minutes before and after tripping
Short-time protection pick-up adjustment type Isd	9 adjustable settings
[Isd] Short-time protection pick-up adjustment range	5 - 13 x Ir
Short-time protection delay adjustment type tsd	Fixed
Instantaneous protection pick-up adjustment type Ii	Fixed
[Ii] Instantaneous protection pick-up adjustment range	4.800 A
Earth fault protection	None
Zoneselective interlock ZSI	None
Number of slots	6 socket positions (socket positions)
Local signalling	Flashing LED (green) for ready to operate; LED 95 % Ith (red) for temperature above setpoint
Width (W)	140 mm
Height (H)	255 mm
Depth (D)	110 mm
Product weight	6,05 kg
Contractual warranty
Warranty (in months)	18
Main features
Product series	ComPacT
Product name	ComPacT NSX
Device short name	NSX400N
Product or component type	Power-cut-out switch
Device application	Motor protection
Pole description	3P
Description of protected poles	3D
[In] Rated current	320 A at 65 °C
[Ue] Rated operational voltage	690 V AC 50/60 Hz
Type of network	AC
Network frequency	50/60 Hz
Suitability for insulation	Yes, complies with EN/IEC 60947-2
Application category	Category A
Breaking capacity	N 50 kA 415 V AC
Trigger name	MicroLogic 2.3 M
Trigger technology	Electronic
Tripping unit protection functions	LSoI
Control type	Toggle switch
Circuit breaker mounting mode	Fixed
Mounting
Standards	EN/IEC 60947-2
Over voltage category	III
Protection class for electric shocks	Class II on front
Pollution degree	3 entspricht IEC 60664-1
Degree of protection (IP)	IP40 complies with IEC 60529
Degree of protection (IK)	IK07 corresponds to IEC 62262
Operating ambient temperature	-25…70 °C
Ambient temperature during storage	-50…85 °C
Relative humidity	0…95 %
Operating altitude	0 - 2,000 m without power reduction; 2,000 - 5,000 m with power reduction
Packaging units
VPE 1 type	PCE
Number of devices per package	1
VPE 1 height	15.3 cm
VPE 1 width	15,5 cm
VPE 1 length	29,3 cm
Packaging weight (Lbs)	5,627 kg

This ComPacT NSX400N is a complete 3P 3d fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for motor protection applications. The breaking capacity (Icu) is 50 kA rms at 415 VAC, 50/60 Hz. The operating voltage is 690 VAC 50/60 Hz. This product features a MicroLogic 2.3 M electronic trip unit rated at 320 A. The MicroLogic 2.3 M trip unit offers adjustable long and short time protection functions and fixed instantaneous protection. This 3-pole version (140 mm x 255 mm x 110 mm) is supplied with a wide range of optional features and accessories. It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications. ComPacT NSX400N is part of Schneider Electric’s EcoStruxure Power architecture.