MENU
China Chamber of Commerce

Overseas Economic and Trade Zones

Confirm
Cancel
x

Ok
x
Sign into your account
Member ID or Email
Join Free
CQB7R-125 10kA Miniature Circuit Breaker Reclosing
CQB7R-125 10kA Miniature Circuit Breaker Reclosing

CQB7R-125 10kA Miniature Circuit Breaker Reclosing

Member Details

Zhejiang Chuangqi Electric Co., Ltd.

Wenzhou,Zhejiang,China

Manufacturer

  • Product Details
  • Company Profile

CQB7R-125 Reclosing MCB is used to combine with Prepaid Meter, when the electricity user prepaid is used up, the MCB will break automatically when getting a signal from the Prepaid Meter. It can be switched on automatically when the Prepaid Meter get a signal that user have bought the electricity.


1 Application

CQB7R-125 Reclosing MCB is used to combine with Prepaid Meter, when the electricity user prepaid is used up, the MCB will break automatically when getting a signal from the Prepaid Meter. It can be switched on automatically when the Prepaid Meter get a signal that user have bought the electricity.


 

2 Type designation

3 Technical data

Specifications
Rated voltage230V~(1P+N,2P)、400V~(3P,3P+N,4P)
Rated impulse withstand voltage Uimp6000V
Rated current(A)40、50、63、80、100、125
Rated frequency50Hz / 60Hz
Number of poles1P+N、2P、3P、3P+N、4P
Rated breaking capacity lcn(A)6kA,  10kA(High breaking type)
Short-circuit capacity Ics(A)6kA,  7 .5kA(High breaking type)
Mechanical life(cycles)≥10000
Electrical life(cycles)≥6000
Overvoltage category
Torque2.5N·M
Automatic closing timet ≤ 3s
Automatic switch-off timet≤ 2s
Signal Connection Wire Length300mm (Customizable on demand)
Tripping characteristicsSee Table 1
Pollution degree2
StandardIEC60898-1、GB10963.1
Compliant certificationCCC


Table 1 Tripping characteristics(Reference temperature 30℃)

ItemCurvesTest current ln(A)StatusTime limit for tripping or non-trippingExpected resultRemarks
aB、C、D1.13lnCold

t≤1h(In≤63A)

t≤2h(In>63A)

Non-trippingCurrent smoothly rises to specified value within 5s
bB、C、D1.45lnFollowing item a test

t<1h(In≤63A)

t<2h(In>63A)

Tripping
cB、C、D2.55lnCold1s<t<60s(ln≤32A)
1s<t<120s(ln>32A)
Tripping
dB
C
D
3ln
5ln
10ln
Coldt≤0.1sNon-trippingSwitch on the power supply by closing the auxiliary switch
eB
C
D
5ln
10ln
20ln
Coldt<0.1sTrippingSwitch on the power supply by closing the auxiliary switch

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

4 Nominal operation conditions
4.1 : Ambient temp. range:-5℃~+40 ℃,average temperature in 24 hours not exceed +35℃
4.2 : Altitude:≤ 2000m;
4.3 : At mounting site, relative humidity not exceed 50% at the max temperature of +40 ℃,higher relative humidity is allowable under lower temperature, for example ,RH could be 90% at +20 ℃
4.4 : Mounting type : Din rail embedded(TH35-7.5)
4.5 Installation conditions
Any direction of the outer magnetic field of the installation site should not exceed 5 times than earth's magnetic field; residual current operated circuit breaker should be mounted vertically, all places inclination no more than 5 °,power position above the handle , the installation place should be no significant impact and vibration.
4.6 Installation should be free from obvious shock and vibration.

5 Conductor requirements and cross-sectional area

Nominal cross-sectional area (mm2)Rated current In(A)
1032<In≤50
1650<In≤63
2563<In≤80
3580<In≤100
50100<In≤125


6  Dimensions (unit :mm)


7 Tripping curve

8.CCC





Send Inquiry to This Supplier

  • Title
  • From*
  • toYuanzhao Xu
  • Message*
  • Minimum Order Quantity*
  • Unit
  • Verification Code*