Ns Moulded Case Circuit Breaker 3p/4p MCCB 1250A

• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Manual Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: MCCB
• Model NO.: NS-1250A
• Poles Number: 4
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
• Certification: ISO9001-2000, CE
• Rated Current: 1250A
• Warranty: 2 Years
• Grade Quality: A Grade
• Items: Ns Moulded Case Circuit Breaker(MCCB)
• Transport Package: Wooden
• Specification: CE ROHS
• Trademark: OEM
• Origin: Zhejiang Yueqing
• HS Code: 8536200000
• Production Capacity: 10000PCS/ Month

Product Description

 

Application
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(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? equipment from overload?under voltage, circuit breaker with rated frame current 400A or below,can be used in mousecage motor's non-frequent start, breaking during working, protecting motor from overload, short circuit?undervoltage,the product conforms to IEC60947-2 standard.

Technical data  

Type	Pole number	Rated insulating voltage (v)	Rated operating voltage (v)	Rated ultimate short circuit breaking capacity Icu (KA) at 380/415v	Rated servies short circuit breaking capacity Ics at 380/415v (KA)	Operation performance		Utilization category
						ON	OFF
NS-100N	3, 4 pole	750	690 and below	25	25	1500	8500	A
NS-100H				70	70
NS-100L				150	150

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