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Yueqing Winston Electric Co., Ltd.

MCCB, 250A Ns Circuit Breaker, Technology MCCB manufacturer / supplier in China, offering Voltage Regulator to 660V Technology MCCB Circuit Breaker (NS 250A), Lta-505 Type Warning Light 24VDC LED Tower Light, AC 220V to DC 5V 12V 24V 36V 35W Single Output Switching Power Supply (S-35) and so on.

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Supplier Homepage Product AC Contactor and Circuit breaker Circuit breaker Voltage Regulator to 660V Technology MCCB Circuit Breaker (NS 250A)

Voltage Regulator to 660V Technology MCCB Circuit Breaker (NS 250A)

FOB Price: US $1-100 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1-100/ Piece
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Port: Ningbo, China
Production Capacity: 10000 PCS/Year
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: NS 250A 3p
  • Operation: Electric Type
  • Arc-extinguishing Medium: Air
  • Structure: MCCB
  • Type: Circuit Breaker
  • Certification: CE, CCC
  • Rate Voltage: 690V
  • Mechanical Life: 100000 Times
  • Rated Frequency: 50Hz/60Hz
  • Transport Package: Export Standard Carton Box
  • Origin: China
  • Breaking Capacity: Low Voltage Circuit Breakers
  • Speed: High-Speed Circuit Breaker
  • Installation: Fixed
  • Poles Number: 3
  • Function: Overcurrent Protection
  • Rated Current: 250A
  • Usage: Motor Protection
  • Application: Electric Power
  • Trademark: Winston/OEM
  • Specification: CE
  • HS Code: 85369000
Product Description
Voltage Regulator to 660V Technology MCCB Circuit Breaker (NS 250A)
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-250N
3, 4
pole
750
690
and
below
36
36
1000
7000
A
NS-250H
70
70
NS-250L
150
150
Note:1. The N-pole breaker has no protection which closing and opening with the other three poles.
           2. The type of thermal magnetic for NS-400/630 has no four poles.

Trip units main technical parameter.Voltage Regulator to 660V Technology MCCB Circuit Breaker (NS 250A)
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

Electronic release.Voltage Regulator to 660V Technology MCCB Circuit Breaker (NS 250A)
Type
Rated current In (A)
Note
NS-100
40, 100
Ir=0.4....1 * In(adjustable 48 setting)
Tripping between 1.05....1.3 * Ir (IEC60947-2)
(Long-time overload protection)
Im=2-3-4-5-6-7-8-10* Ir
(Short-circuit protection)
NS-160
40, 100, 160
NS-250
40, 100, 160, 250

Dimension
Voltage Regulator to 660V Technology MCCB Circuit Breaker (NS 250A)

FAQ

Q 1. What's the payment term?

A. We accept TT,30% deposit and 70% balance against copy of BL

Q 2. How's the delivery time ?

A. Usually it will take about 3-7days after get payment.

Q 3.Could you offer Form A or C/O ?

A. It totally not a problem. We can prepare relative documents to forgin affairs office or other office to apply for this certificate.

Q 4.Would you accept to use our logo and model ?

A.If you have good quantity,it absolute no problem to do OEM.

Q 5.Where is your market?

A. Our products are popular in Russia, Indonisia, Philippines,Italy, America, Brazil and so on.Some of them are our regular customers and some of them are developing. We hope you can join us and make mutural benifit from our cooperation.

Why choose us
Voltage Regulator to 660V Technology MCCB Circuit Breaker (NS 250A)

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