NBSe NF-CS MCCB mold case circuit breaker, 50Hz or 60Hz up to 1250A
600V,NF MCCB
factory directly provide Nf cs 3phase 100a 150a mccb
Normal working condition
The MCCB applies to the following working conddition
A. Ambient air temperature ≤+40℃ and ＞-5℃
B. Altitude ≤ 2000m
C. Air relative humidity is under 50% at +40℃, it permits upper
relative humidity at lower temperature, the most humid month's
lowest temperature does not exceed +25℃, the month's average
relative humidity does not exceed 90%.
D. Class of pollution:class 3. There are no gas and electric
conduction dust which may explode, dipping and broken insulation.
E. Installation type: Ⅲ
F. The "1,3,5,N1" terminals connect with power supply, the
"2,4,6,N2" terminals connect with load, can not mixed.
G. The MCCB's installing surface should upright with level, upright
installing , the power supply terminal should at upside , load
terminal should at underside, it also can be landscape orientation
installing.
Specifications
1) The products conforms to GB14048.2,IEC60497-2 standards.
2) Equipment with the protection devices.
1. Application and range of application
The NF-CS series plastic outer covering type circuit breaker
(hereafter refers to as circuit breaker), is this company uses the
international advanced design, one of the technique of manufacture
development, development new circuit breakers. Its fixed isolation
voltage is 690V, is suitable in exchanges 50Hz, fixed working
voltage 400V and below.Rated current to 800A circuit as frequent
changeover gum less frequent motor starter. The Circuit breaker
with overload, short circuit protection device, and less voltage
protection circuit and power equipment are not damaged.
2. Technical parameter of MCCB
| Type |
Number of poles |
Rated current in(A) |
Rated voltage Ue(V) |
Short-circuit Interrupting capacity Icu/Ics(KA) |
| DC | AC |
| 250V | 230V | 400V | 440V | 500V |
| NF30-CS | 2 | 3,5,10,15,20,25,30 | AC400(380)
AC690(660)
DC250 | - | 5/2 | 5/2 | - | - |
| 3 |
| NF50-CS | 2 | 5,10,15,20,30,40,50 | - | 5/2 | 5/2 | 2.5/1 | 2.5/1 |
| 3 |
| NF60-CS | 2 | 10,15,20,20,40,50,60 | - | 5/2 | 5/2 | 2.5/1 | 2.5/1 |
| 3 |
| NF100-CS | 2 | 50,60,75,100 | - | 25/10 | 18/10 | 10/7.5 | 7.5/5 |
| 3 |
| NF250-CS | 3 | 125,150,175,200,225,250 | - | 25/10 | 18/10 | 15/10 | 10/7.5 |
| NF400-CS | 3 | 250,300,350,400 | - | 35/25 | 25/18 | 25/18 | 15/10 |
| NF630-CS | 3 | 500,600,630 | - | 50/35 | 35/25 | 35/25 | 18/10 |
Our Services
(1) Warranty ( 24 months warranty )
1. The warranty starts from the delivery date from our factory;
2. During the warranty, any defective product will get repaired or
replaced for free ;
3. It is beyond the warranty as the products breaked by the
violence , the carelessness or repaired , altered without
authorization.
(2) Lead Time
1. Sample orders will be delivered from our factory within 7
working days.
2. General orders will be delivered from our factory within 7-15
working days.
3. Bulk orders will be delivered from our factory within 25 working
days at most
(3) Shippment
1. By EMS, DHL, FedEx, TNT, UPS or other express.
2. By our forwarding agent (by air or by sea).
3. By your own forwarding agent.
4. By domestic forwarding agents to any city in China
