250AMP Ns-250n Moulded Case Circuit Breakers/MCCB

• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: MCCB
• Model NO.: NS-250N
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: VDE, ISO9001-2000, CE, UL, CB, CCC
• Transport Package: Standard Export Packing
• Specification: NS-250N
• Trademark: Changsong
• Origin: Zhejiang, China
• HS Code: 8536200000
• Production Capacity: 50000PCS/Year

Product Description

NS series moulded case circuit breaker is one of breaker which adopts international advanced design .
Manufacture technology to develop,the rated insulating voltage is 750V,suitable for AC 50Hz or 60Hz,rated working voltage 690V or below,rated working current is 12.5A to 1250A of circuit and used in distributing electric energy,and non-frequent breaking in the normal conditions,protecting the current & equipement from overload under voltage,circuit breaker with rated frame current 400A or below.

 

Main technical specification:

Type	Pole number	Rated insulating voltage(V)	Rated operating voltage(V)	Rated servies short circuit breaking capacity Ics at 380/415(KA)	Operation performance(ON/OFF)	Utilication category
NS-100N	3,4 pole	690 and below	25	25	1500	8500
NS-100H			70	70
NS-100L			150	150
NS-160N			36	36	1000	7000
NS-160H			70	70
NS-160L			150	150
NS-250N			36	36	1000	7000
NS-250H			70	70
NS-250L			150	150
NS-400N			45	45	1000	4000
NS-400H			70	70
NS-400L			150	150
NS-630N			45	45	1000	4000
NS-630H			70	70
NS-630L			150	150
NS-1250N	3 pole		50	37.5	1000	4000
NS-1600N			50	37.5

Note:1.The N-pole breaker ha no protaction which closing and opening with the other three poles.

          2.The type of thermal magnetic for AM2-400-630 has no four poles.

 

 TRIP UNITS MAIN TECHNICAL PARAMETER:

Type	Rated current In(A)	Note
NS-100	12.5,16,20,25,32,40,50,63,80,100	T adjustable(0.8~1In)       M adjustable(5~10In)
NS-160	16,20,25,32,40,50,63,80,100,125,160
NS-250	160,180,200,225,250
NS-400	315,350,400
NS-630	400,500,630
NS-1250	800,1000,1250	T adjustable(0.8~1IN)      M fixed