Width	105mm
Height	161mm
Depth	86mm

Depth	86mm
Height	161mm
Instantaneous pick-up adjustment range	5...10 x In
Long time pick-up adjustment range	0.7...1 x In
Net weight	2.4 kg
Range	ComPacT new generation
Width	105mm
[tr] long-time delay adjustment range	15-15 s at 6 x Ir
Ambient air temperature for operation	-25-70 °C
Ambient air temperature for storage	-50-85 °C
Breaking capacity	25 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
Breaking capacity code	B 25 kA 415 V AC
Compatibility code	NSX250
Connection pitch	35mm
Control type	toggle
Device application	distribution
Device short name	NSX250B
Downside connection	front
Earth-leakage protection	without
Electrical durability	10000 cycles at 690 V In/2
Electrical shock protection class	class II
IK degree of protection	IK07 conforming to IEC 62262
IP degree of protection	IP40 conforming to IEC 60529
Instantaneous pick-up adjustment type Ii	adjustable
Long time delay adjustment type	fixed
Long time pick-up adjustment type Ir	adjustable
Mechanical durability	20000 cycles
Mounting mode	fixed
Mounting position	flat on the back
Mounting support	backplate
Network frequency	50/60 Hz
Network type	AC
Number of slots	5 slot(s)
Operating altitude	2000 m...5000 m with derating
Overvoltage category	class II
Poles description	3P
Pollution degree	3 conforming to IEC 60664-1
Power dissipation per pole	18.75 W
Product name	ComPacT NSX new generation
Product or component type	circuit breaker
Protected poles description	3D
Protection type	I : for short-circuit protection (magnetic)
Relative humidity	0-95 %
Standards	EN/IEC 60947-2
Suitability for isolation	yes conforming to EN/IEC 60947-2
Supplier Code	C25B3TM250
Trip unit name	TM-D
Trip unit protection functions	LI
Trip unit rating	250-250 A at 40 °C
Trip unit technology	thermal-magnetic
Upside connection	front
Utilisation category	category A
[Ics] rated service breaking capacity	25 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2
[In] rated current	250 A at 40 °C
[Ue] rated operational voltage	690 V AC 50/60 Hz
[Ui] rated insulation voltage	800 V AC 50/60 Hz
[Uimp] rated impulse withstand voltage	8 kV