Complementary
[Icu] rated ultimate short-circuit breaking capacity	50 kA at 220/415 V AC 50/60 Hz; 50 kA at 440 V AC 50/60 Hz; 42 kA at 525 V AC 50/60 Hz; 42 kA at 690 V AC 50/60 Hz
[Ics] rated service breaking capacity	42 kA at 220/415 V AC 50/60 Hz; 42 kA at 440 V AC 50/60 Hz; 50 kA at 525 V AC 50/60 Hz; 50 kA at 690 V AC 50/60 Hz
[Icw] rated short-time withstand current	42 kA 0.5 s; 42 kA 1 s; 20 kA 3 s
[Icm] rated short-circuit making capacity	105 kA 220/415 V AC at 50/60 Hz; 105 kA 440 V AC at 50/60 Hz; 88 kA 525 V AC at 50/60 Hz; 88 kA 690 V AC at 50/60 Hz
Integrated instantaneous protection (DIN in kA peak)	81…99 kA
Sensor rating	400 A; 800 A
[Ui] rated insulation voltage	1000 V AC 50/60 Hz
[Uimp] rated impulse withstand voltage	12 kV
Power dissipation in W	50 W
Maximum breaking time	25 ms
Maximum closing response time	50 ms
Mounting support	Backplate; Rails
Upside connection	Front; Rear
Downside connection	Front; Rear
Connection pitch	70 mm
Mechanical durability	12500 cycles without maintenance
Electrical durability	6000 cycles 440 V AC 50/60 Hz without maintenance conforming to EN/IEC 60947-2; 3000 cycles 690 V AC 50/60 Hz without maintenance conforming to EN/IEC 60947-2; AC-23A: 6000 cycles 440 V AC 50/60 Hz without maintenance conforming to EN/IEC 60947-3; AC-23A: 3000 cycles 690 V AC 50/60 Hz without maintenance conforming to EN/IEC 60947-3; AC-3: 6000 cycles 440 V AC 50/60 Hz without maintenance conforming to EN/IEC 60947-3
Height	301 mm
Width	346 mm
Depth	196 mm
Net weight	18 kg
Standards	EN/IEC 60947-1; EN/IEC 60947-2
Product certifications	CE; CCC; EAC
Contractual warranty
Warranty (in months)	18
Environment
IP degree of protection	IP30 conforming to IEC 60529
Pollution degree	3 conforming to IEC 60664-1
Ambient air temperature for operation	-25…70 °C
Ambient air temperature for storage	-40…85 °C
Operating altitude	0...2000 m without derating; 2000 m...5000 m with derating
Logistical informations
Country of origin	FR
Main
Range	MasterPacT
Product name	MasterPact NT
Circuit breaker name	MasterPact NT08H2
Product or component type	Circuit breaker
Device application	Power distribution protection
Poles description	4P
Neutral position	Left
Control unit	Without control unit
[In] rated current	800 A at 40 °C
Performance type	H2 50 kA 440 V AC
[Ue] rated operational voltage	690 V AC 50/60 Hz
Suitability for isolation	Yes conforming to EN/IEC 60947-2
Selectivity category	Category B
Control type	Push-button
Mounting mode	Fixed
Packing Units
Unit Type of Package 1	PCE
Number of Units in Package 1	1
Package 1 Height	40.0 cm
Package 1 Width	40.0 cm
Package 1 Length	30.0 cm
Package 1 Weight	21.506 kg

MasterPact NT and NW is the proven generation of air circuit breakers up to 6300 A, which incorporate the latest technologies. The MasterPact NT and NW consists of 3 sizes, NT from 630 to 1600A, NW from 800 to 4000A and NWb from 4000 to 6300A. It can be configured as a fixed installation or withdrawable device, or as a circuit breaker or load breaker. The integrated MicroLogic protection and tripping device can be equipped with a wide range of functions and accessories. The MasterPact NT 800A H2 Icu air circuit breaker is 50kA at 440V 4-pole, basic switch without Micrologic tripping device, fixed installation. The Masterpact can be ordered via the online configurator.