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	100 kA at 250 V DC conforming to IEC 60947-2 (1P); 100 kA at 24...125 V DC conforming to IEC 60947-2 (1P); 100 kA at 500 V DC conforming to IEC 60947-2 (2P); 100 kA at 750 V DC conforming to IEC 60947-2 (3P)
Maximum breaking time	10 ms
Mechanical durability	10000 cycles conforming to IEC 60947-2
Electrical durability	10000 cycles 250 V DC In/2 conforming to IEC 60947-2; 10000 cycles 500 V DC In/2 conforming to IEC 60947-2; 10000 cycles 750 V DC In/2 conforming to IEC 60947-2; 5000 cycles 250 V DC In conforming to IEC 60947-2; 5000 cycles 500 V DC In conforming to IEC 60947-2; 5000 cycles 750 V DC In conforming to IEC 60947-2
Mounting support	Backplate
Upside connection	Front
Downside connection	Front
Connection pitch	35 mm
Protection type	Without protection
Width (W)	140 mm
Height (H)	161 mm
Depth (D)	86 mm
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 EN 50102
Ambient air temperature for operation	-25…70 °C
Ambient air temperature for storage	-50…85 °C
Logistical informations
Country of origin	PL
Main
Range	ComPacT
Product name	ComPacT NSX DC
Device short name	NSX250S DC
Product or component type	Basic frame
Device application	Distribution
Poles description	4P
Neutral position	Left
[In] rated current	250 A at 40 °C
[Ue] rated operational voltage	750 V DC conforming to IEC 60947-2
Network type	DC
Suitability for isolation	Yes conforming to EN/IEC 60947-2
Utilisation category	Category A
Breaking capacity	100 kA Icu at 250 V DC 1P conforming to IEC 60947-2; 100 kA Icu at 24...125 V DC 1P conforming to IEC 60947-2; 100 kA Icu at 500 V DC 2P conforming to IEC 60947-2; 100 kA Icu at 750 V DC 3P conforming to IEC 60947-2
Breaking capacity code	S 100 kA 750 V DC
Control type	Toggle
Mounting mode	Fixed
Packing Units
Unit Type of Package 1	PCE
Number of Units in Package 1	1
Package 1 Height	14.000 cm
Package 1 Width	15.000 cm
Package 1 Length	19.600 cm
Package 1 Weight	2.144 kg
Unit Type of Package 2	S03
Number of Units in Package 2	4
Package 2 Height	30.000 cm
Package 2 Width	30.000 cm
Package 2 Length	40.000 cm
Package 2 Weight	8.956 kg

This is a 4-pole basic switch for the ComPacT NSX 2+C3:C950S DC circuit breaker, designed to optimise space and breaking capacity. It is an optimal choice for applications using DC voltages. The breaking capacity (Icu) is 100 kA rms at 750 VDC. The rated current is 250 A and the operating voltage is 750 VDC. This basic switch is supplied without a trip unit (to be ordered separately) and can be equipped with a wide range of optional features and accessories. The dimensions are 161x140x86 mm (H x W x D). It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications.