DC/AC 80A-1600A 3 pole 4 pole Moulded Case Circuit Breaker Ns NSX MCCB
 

Application of  MCCB                                                                                 

 

SM6(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)

 

 

NS/NXS MCCB Technical Data

 

 

 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 .

 

 

4.Accessories

 

 

 

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
     

SM8max MCCB

 






FAQ:
Q:  What's your warranty ?
 A: Two years

Q:  How can i trust you and your company ?
A: Suntree is a group company, we have 6 subcompanies. 
Have cooperation with LS, EKF the world-class companies. 
Our company over 500 employees, products pass 
CE,IEC,TUV,SAA, RCM, ROHS certificates. 

Q: What's your contact information:
A: Our address: Liushi town, Zhejiang province, China. 

Q: What's your shipment method?
A: We ship by Express, by air, by sea, by train. Normally we checked and compare, 
then provide customer the most proper shipment method.

Q: What's about MOQ?
A: First order MOQ=1pcs

Q: If i want to release order, what's the payment method you accept ? 
A: We accept T/T, Paypal, Western union, L/C.

 Q: If i want to release order, what's the process?
A: Thanks. You can send inquiry to us by made-in-china, 
or send us by email, we will reply within 24hrs.

 Thank you & Now pls send your inquiry !  ^!^ 

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