NS Moulded Case Circuit Breaker

 

Applications:
NS series mould case circuit breaker is one of the most advanced type breakers in the world.Which adopt internationaladvanced design and manufacture technology.They are suitable for short circuit and overload protection for circuit of AC690V,50/60Hz,rated current from 12.5A to 630A.Its rated insulation voltage is 690V.It can make and break non-frequent start,breaking off working and protecting overload,short circuit and under voltage.

Tripping Characteristics:

Rated current of release(A)	Thermodynamic release(ambient temp+40)		Operation current of magnetic release(A)
	1.05ln(cold state) inoperative time(h)	1.30ln(heat state) inoperative time(h)
ln63	1	1	10ln20%
63ln100	2	2	10ln20%
100ln630	2	2	5-10ln20%

Rated current of release(A)	Thermodynamic release(ambient temp+40)				Operation current of magnetic release(A)
	1.0ln(cold state) inoperative time(h)	1.20ln(heat state) inoperative time(h)	1.50ln(heat state) inoperative time(h)	1.0ln(heat state) inoperative time(h)
12.5ln400	2	2	4min	2STp10S	12ln20%

Specifications:

Type	Rated current(A)	Pole No.	Rated insulating voltage (V)	Rated operating voltage	Arcing over distance (mm)	Ultimate short circuit breaking capacity(kA)			Services short circuit breaking capacity(kA)		Operation performance (Endurance)
											ON	OFF
NS-100D	12.5, 16, 20, 25, 32, 40, 50, 63, 80, 100	3 4	950	690	0	18			18		1500	8500
NS-100N						25			25
NS-100H						70			70
NS-100L						150			150
NS-160D	16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 160					25			25		1000	7000
NS-160N						36			36
NS-160H						70			70
NS-160L						150			150
NS-250D	160, 180, 200, 225, 250					25			25		1000	7000
NS-250N						36			36
NS-250H						70			70
NS-250L						150			150
NS-400D	200, 225, 250, 300, 315, 400					35			35		1000	4000
NS-400N						15			45
NS-400H						70			70
NS-400L						150			150
NS-630D	315, 350, 400, 500, 600, 630					35			35		1000	4000
NS-630N						45			45
NS-630H						70			70
NS-630L						150			150

 

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