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CQB5-63 4.5kA Miniature Circuit Breaker
CQB5-63 4.5kA Miniature Circuit Breaker

CQB5-63 4.5kA Miniature Circuit Breaker

Member Details

Zhejiang Chuangqi Electric Co., Ltd.

Wenzhou,Zhejiang,China

Manufacturer

  • Product Details
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Features ·Up to 63A current rating ·Current limiting design ·Three levels of short-circuit protection ,categorized by B、C and D curves. ·Captive screws cannot be lost ·Contact position indicator(red/green) ·Easy installation on DIN rail

1  Application

Suitable for industrial, commercial, high-rise and civil residences circuit protection.

Features

·Up to 63A current rating

·Current limiting design

·Three levels of short-circuit protection ,categorized by B、C and D curves.

·Captive screws cannot be lost

·Contact position indicator(red/green)

·Easy installation on DIN rail

2. Type designation


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3  Technical data

Specifications                            
Rated voltage(v) :230V/400V(1P)、400V(2P、3P、4P)
Rated current(A) :6、10、16、20、25、32、40、50、63
Poles :1P、2P、3P、4P
Rated breaking capacity(A):4500
Tripping characteristics:Table 1
Mechanical life & Electrical life:4000
Nominal cross section area 
S (mm2):
Table 2
Tightening torque (N-m):2.5
Pollution Degree:
Protection class:IP20
Overvoltage category :

 

Table 1:   Tripping characteristics  (temperature 30℃) :

TypeRated current(A)Initial statusTest currentTripping timeExpected resultRemarks
Delay≤63Cold1.13In≤1hNon-tripping
Delay≤63Following previous test1.45In<1htrippingCurrent smoothly rises to specified value in 5s
Delay≤32Cold2.55In1<t<60stripping
Delay>32Cold2.55In1<t<120stripping
InstantaneousAny valueCold3、5、10In≤0.1sNon-trippingB、C、D 
InstantaneousAny valueCold5、10、20In<0.1strippingB、C、D 

 Note: The term "cold " means that the test is carried out at a reference calibration temperature without load before the test.


 

Table 2: Nominal cross section area S (mm2)

Copper cross-section(mm2)Rated current In (A)
            1            In≤6
           1.5         6<In≤13
           2.5        13<In≤20
            4        20<In≤25
            6        25<In≤32
           10        32<In≤50
           16        50<In≤63


4  Order specifications.

When ordering circuit breakers, the following points should be specified:

A) Product models, such as CQB5-63;

B) Poles of circuit breakers, such as 1P、2P、3P、4P;

C) Rated current of circuit breakers, such as 16A、20A、25A;

D) Order quantity, such as 100 pcs

Purchase order template

CQB5-63  2P  C/16A  100pcs

5  Dimensions (unit :mm)

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