Morning Sun Electrical Co., Ltd.

Nsx MCCB, MCCB, Tmax manufacturer / supplier in China, offering Nsx250f MCCB with Good Quality, Barrier Terminal Block 6.35mm Pictch, Screw Terminal Block with Competitive Price Super Quality and so on.

Supplier Homepage Product List circuit breaker Nsx250f MCCB with Good Quality

Nsx250f MCCB with Good Quality

FOB Price:US $10 / Piece
Min. Order (Pieces) FOB Price
50+ US $10 / Piece
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Min. Order: 50 Pieces
Production Capacity: 500PCS/Day
Transport Package: Exporting Carton
Payment Terms: T/T, Paypal, Western Union

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Basic Info.

Model NO.:NSX250F
Breaking Capacity:Low Voltage Circuit Breakers
Operation:Electric Type
Speed:Normal Type Circuit Breaker
Arc-extinguishing Medium:Air
Installation:Fixed
Structure:MCCB
Poles Number:3
Type:Circuit Breaker
Function:Circuit-Breaker Failure Protection
Certification:CE, CCC
High Quality Competive Prices:OEM
Trademark:MORSUN OR OEM
Specification:IEC
Origin:China
HS Code:8536620000

Product Description


Product Description
NSX mccb circuit breaker 400amp mccb

Application of  MCCB                                                                         

NSX MCCB is suitable for using in the circuit of AC 50/60Hz, please make remarks when ordering, rated insulating voltage 750V, rated working voltage below 690V, and rated current is 16A to 1250A for distributing electric energy, and infrequently OFF/ON under normal condition. The intelligent MCCB, which the rated frame rank current is 800A and below, also can be used for infrequently switching and starting of squirrel cage motor and for protecting motor from over-load, short circuit and under-voltage.

Working conditions of MCCB                                          
1. Not over altitude 2000m;
2. Ambient temperature is between-25°C and +40°C ; Working in the medium which not any   explosive, not enough dielectric to corrode metal, no gas to damage insulation and electric conduction dust;
3. Working in the place would not be invaded by rain and snow; 3. Pollution degree3;         4. Mounting type.

Classification of MCCB                                                     
1) According to using: distribution circuit protection type, motor production type;
2) According to connection mode: front panel connection, back panel connection, plug-in connection;
3) According to operating way: for direct handle operating, for motor operator operating, for rotary handle operating.
4) According to the number of pole: 3,4 pole.
5) According to the accessory: with accessory setting, and without accessory setting.

The Main Capability Index of MCCB            

the protection of SM6 serise breakers(intelligent)


The frame current grad(A)
Rated currentTimes of short delay(times)Notice
100model(SE)40-1002-10
1: Grades to adjust:2,3,4,5,6,7,8,10
2: Rated current can be adjusted, and has 48 grades.
3:Distribute electric instantaneous multiple up from 11 times.
4: Motor instantaneous multiple up from 12 times

160model(SE)
64-1602-10
250model(SE)100-2502-10
400model(SE)160-4002-10
630model(SE)250-6302-10
1250model(SE)500-12502-10



NS/NXS MCCB 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, 4pole

750

690 and below

25

25

1500

8500

A

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



Type

Rated currentIn(A)

Note

NS-100

12.5,16,20,25,32,40,50,63,80,100

Tadjustable (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

Tadjustable (0.8~1In)M fixed

NS-1600

1000,1250,1600


1. Overload protection with adjustable threshold, as defined by IEC60947-22. Short-circuit protection with adjustable threshold3. Instantaneous short-circuit protection4. Earth fault protection with adjustable threshold5. Load indication : light at 90% of Ir setting threshold; Flashing more than Ir setting threshold6. Fault indicationLEDs indicates the type of fault that caused trippingOverload  (LT protection) or abnormal component temperature (>Ir);Short-circuit (ST or instantaneous protection)( >Im);Earth fault (if earth fault protection option is present)(Ig);Microprocessor malfunction (both (>Ir) and ( >Im) LEDs go on ,plus the (Ig) LEDs if earth fault protection option is present )Battery powered. Spare battery are supplied in an adapter box. When a fault occurs , the LED indicating the type of fault , lights for about 10 minutes . The information is however stored in memory .  The LED can be illuminated by pressing the test pushbutton.  The LED automatically goes off and the memory is cleared when the circuit breaker is reset .



Type

Rated current In(A)

Note

NS-400

400

Ir=0.4~1×In(adjustable 48 setting)Tripping between 1.05~1.3×Ir (IEC60947-2)at 6×Ir Trip time: 1s, 2s, 4s, 8s, 16s(adjustable)(Long-time overload protection)Isd=1.5-2-3-4-5-6-7-8-10×IrTrip time: 0s, 0.1s, 0.2s, 0.3s adjustable+I2t(Short-circuit short time delay protection)Ii=1.5-2-3-4-6-7-8-10-11×Ir(Instantaneous short-circuit protection)Ig=0.1-0.2-0.3-0.4-0.5-0.6-0.7-0.8-1×IrTrip time: 0.1s, 0.2s, 0.3s, 0.4s adjustable+I2t(Earth fault protection) (If option is present)

NS-630

630



4.Accessories


Accessories

Rated operating voltage

Consumption

For type

Pick-up

Seal-in

Shunt release(MX)

24V100V220/230V380/400V

<10VA

<5VA

NS-100~630

Under-voltagerelease(UN)

220/230V380/400V

<10VA

<5VA




Accessories

Rated operating voltage

Consumption

For type

AC12

AC15

Auxiliary contact(OF)

380/400V

6

3

NS-100~630

Alarm contact(AL)

380/400V

6



Rotary handle
Direct rotary handle
Degree of protection:IP40
Function:
1) suitability for isolation
2) indication of three positions 0(off) I(on) and tripped
3) press "push to trip" button, can trip-free
4) visibility of and access to trip unit settings
5) the circuit breaker can be locked in the off position by one to three padlocks , diameter 5 to 8mm(not supplied)
Extended rotary handle
Degree of protection:IP55
Function:
1) Suitability for isolation
2) Indication of three positions 0(off) I(on) and tripped
3) Visibility of and access to trip unit settings when the door is open
4) Door opening prevented when circuit breaker is on
5) The circuit breaker can be locked in the off position by one to three padlocks , diameter 5 to 8mm(not supplied).Locking prevents opening of the switchboard door

5.Installation
Circuit breaker may be mounted vertically, horizontally or flat on their back without any derating of characteristics.
6.Fix
Mounting on backplate , mounting on rails
7.Connection
Front panel connection , black panel connection , plug-in connection
8. Outline and Installation Dimension


mm
CC1C2C3GG1G4G5HH1H2
NS 100/160/250N/H/L29765410862.51257014080.516194
NS 400/630N/H/L41.511692.5184100200113.5227127.5255142.5


mm
H3H4H5H6H7KK1K2LL1L2P1P2P4P5
NS 100/160/250N/H/L188160.5321178.535717.5357052.51051408186111*83
NS 400/630N/H/L28524048023747422.545907014018595.5110168107


mm
P6RR1R2R4R5ΦTΦT4(Ue)
NS 100/160/250N/H/L8814.52954108143622≤32
NS 400/630N/H/L11231.56371.5143188632≤32



company also produce same -ABB-Tmax type MCCB

same Tmax MCCB is the lasted model of type, suitable for circuit AC 50Hz/60Hz, rated voltage up to AC 660V, rated operating current up to 630A. It features normal structure, reliable performance, high breaking capacity, used for power distribution and protecting the circuit and electrical equipment against overload and short circuit. It complies with standard of IEC60947-2.


Type
Tmax-160Tmax-250Tmax-400Tmax-630
Poles3333
Rated current In(A)16-160100-250250-400400-630
Rated operating voltage Ue(V)(50/60Hz)690
Rated insulation voltage Ui(V)800
Rated impulse withstand voltage Uimp(kV)8
Utilisation categoryA
Frequency withstand voltage 1 Minute30003500
Rated limited short-circuit breaking capacity Icu(kA)220/230V25507070
380/415V16363636
400V10253030
500V8202525
690V352020
Rated operating short-circuit breaking capacity Ics (100% Icu)220/230V100%75%100%100%
380/415V
400V
500V
690V
Rated short-circuit closing capacity Icn(kA)220/230V52.5105154154
380/415V3275.675.675.6
400V1752.56363
500V13.64052.552.5
690V4.37.74040
Mechancial lifeOperating recycle times250002000
Operating recycle times per hour240120
Electrical lifeOperating recycle times800060005000
Operating recycle times per hour12060
 
 

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