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SKU:

C40F4TM250D

Circuit breaker, ComPacT NSX400F DC, 36kA/750VDC, 4 poles, TM-DC trip unit 250A

Old price: $2,604.80 INC GST

Price: $2,292.22 INC GST

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Available for Shipping : 24-Sep-2025

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Circuit breaker, ComPacT NSX400F DC, 36kA/750VDC, 4 poles, TM-DC trip unit 250A

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Manufacturer: Schneider Electric

Environmental Disclosure

User guide

Declaration of conformity

Instruction sheet

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Product Data Sheet

ComPacT NSX 250F DC is a complete 4 poles fixed circuit breaker designed to optimize space and breaking capacity. It's an optimal choice for applications using DC voltages. The breaking capacity (Icu) is 36kA rms at 750VDC. The operational voltage is 750VDC. This product embeds a 250A rating thermal-magnetic trip unit (TM-DC). TM-DC trip unit provides an adjustable thermal overload protection and an adjustable magnetic protection. The dimension is 255mm x 185mm x 110mm (H x W x D). It is compliant with international standard EN/IEC 60947.

Products specifications

Attribute name	Attribute value
Main
Device short name	NSX400F DC
Device application	distribution
Breaking capacity code	F 36 kA 750 V DC
Suitability for isolation	yes conforming to EN/IEC 60947-2
Breaking capacity	36 kA Icu at 750 V DC 3 poles in series conforming to IEC 60947-2, 36 kA Icu at 500 V DC 2 poles in series conforming to IEC 60947-2, 36 kA Icu at 250 V DC 1 pole conforming to IEC 60947-2, 36 kA Icu at 24...125 V DC 1 pole conforming to IEC 60947-2
Mounting mode	fixed
Control type	toggle
Range	ComPacT new generation
Protected poles description	4D
Range of product	ComPacT NSX400...630 DC new generation
Trip unit name	TM-DC
Trip unit technology	thermal-magnetic
Poles description	4P
Utilisation category	category A
Product name	ComPacT NSX DC new generation
Product or component type	circuit breaker
Network type	DC
Trip unit protection functions	LI
[Ue] rated operational voltage	750 V DC
[In] rated current	250 A at 40 °C
Complementary
[Uimp] rated impulse withstand voltage	8 kV conforming to IEC 60947-2
Connection pitch	45 mm
Compatibility code	NSX250
Mechanical durability	5000 cycles
Trip unit rating	250-250 A at 40 °C
Upside connection	front
Long time pick-up adjustment type Ir	adjustable
Long time pick-up adjustment range	0.7...1 x In
Electrical durability	1000 cycles at 750 V In, 2000 cycles at 750 V In/2
Protection type	I : for short-circuit protection (magnetic), L : for overload protection (thermal)
Downside connection	front
Earth-leakage protection	without
Height	255 mm
[Ics] rated service breaking capacity	36 kA at 750 V DC conforming to IEC 60947-2, 36 kA at 500 V DC conforming to IEC 60947-2, 36 kA at 250 V DC conforming to IEC 60947-2, 36 kA at 24...125 V DC conforming to IEC 60947-2
Depth	110 mm
Width	185 mm
Mounting position	flat on the back, horizontal and vertical
[Ui] rated insulation voltage	750 V DC conforming to IEC 60947-2
Net weight	8.4 kg
Instantaneous pick-up adjustment type Ii	adjustable
Number of slots	6 slot(s)
Instantaneous pick-up adjustment range	2.5...5 x In
Mounting support	backplate
Environment
Relative humidity	0-95 %
Ambient air temperature for storage	-50-85 °C
Pollution degree	3 conforming to IEC 60664-1
IP degree of protection	IP40 conforming to IEC 60529
Ambient air temperature for operation	-25-70 °C
IK degree of protection	IK07 conforming to IEC 62262
Overvoltage category	class II
Operating altitude	2000 m...5000 m with derating, 0...2000 m without derating
Electrical shock protection class	class II
Standards	EN/IEC 60947
Product certifications	Marine, EAC, CCC
Packing Units
Unit Type of Package 1	1
Number of Units in Package 1	1
Package 1 Height	14.700 cm
Package 1 Width	20.000 cm
Package 1 Length	29.100 cm
Package 1 Weight	7.000 kg
Unit Type of Package 2	2
Number of Units in Package 2	2
Package 2 Height	30 cm
Package 2 Width	30 cm
Package 2 Length	40 cm
Package 2 Weight	14.420 kg
Unit Type of Package 3	3
Number of Units in Package 3	16
Package 3 Height	45.000 cm
Package 3 Width	80.000 cm
Package 3 Length	120.000 cm
Package 3 Weight	127.360 kg