Sale High Quality 6000A Residual Current Circuit Breakers(RCCB)

FOB Price: Get Latest Price
Model:KNL7-63
Certification:NF,SEMKO,TSE,CE,CB
Capable:UL
Minimum Order:100PCS
Brand Name:korlen
Brief Description:KNL7 series dopt the new technology which is is suitable for the line of AC,A and S 50/60Hz, voltage 240V(2pole)/415V(4pole), rated current up to 63A.

Lianggui Liu

  • Product Details

Basic Specification

Frame class63A
Rated worling current16;20;25;32;40;50;63A
Rated residual un-operating current0.015; 0.05; 0.15;0.25A
Rated working voltage240V/415V
Rated residual operating current0.03; 0.1; 0.3;0.5A
Poles Number4
TypeResidential Current
Nominal Insulation Voltage400V

Detail Description

 

Sphere of application 
KNL7 series Residual current circuit breaker(without over-current protection) is suitable for the line of AC 50/60Hz, voltage 240V(2pole)/415V(4pole), rated current up to 63A. When there is human electricity shock or if the leakage current of the line exceeds the prescribed value, it will cut off the power rapidly to protect human safety and prevent the accident due to the current leakage. It can be used as infrequent changeover of the line in normal situation.It is applicable to industrial site, commercial site, tall building and civil house.
It complies with standard of IEC/EN61008.1 and GB16916.1.

Basic specification and main parameters 

Frame class

63A

Rated working voltage

240/415V

Rated frequency

50/60Hz

Rated working current

16、20、25、32、40、50、63A

Rated residual operating current

0.03,0.1,0.3A

Rated residual un-operating current

0.015,0.05,0.15A

Sensibility

AC Type,A Type,S Type

Maximum operating time

I△n t≤0.1s , 5I△n t≤0.04

Rated making and breaking capacity

In≤50A 500A,In=63A 630A

Limiting value of un-operating current

6In

Rated limiting short-circuit current

6000A

Pole number

2、4P

Mechanical life

10000

Electric life

4000

Operation principle 
Each phase of conductor at the circuit breaker passes through the zero-sequence current transformer, and the secondary side of coil connects with the electromagnetic tripper. Under normal condition, the vector sum of each phase of current passing through zero-sequence current transformer is zero. The flux of the zero-sequence current transformer is zero. And the secondary output voltage is zero and the circuit breaker doesn’t zero, and the zero-sequence current transformer would produce the magnetic flux, and the secondary side of coil would output the voltage. Once the leak current increases to drive the output voltage at the secondary side to grow to certain level, the electromagnetic release would activate to drive the operation mechanism to act to break the contact that connects the power, finally to realize the leak protection.

Additional Information

Payment TermsL/C, T/T, D/A, D/P, Credit Card, Western Union, Money Order, Paypal
Minimum Order100PCS
Lead Time / Delivery Time30 Day(s)
Sample AvailableYES Ask For Sample
Delivery Detailsdelivery 20days
FOB PortNingbo,Shanghai
Loading InfoDelivery to shanghai/ningbo or loading at factory
Packing Infocarton
Target Market(s)North America, Oceania, Southeast Asia, Eastern Europe, Africa(except Middle East), Hong Kong/ Macao/ Taiwan, Latin America, Japan & Korea, Middle East & South Asia, Mainland China, Western & Southern Europe, Northern Europe, Central & Southern Asia, Middle East

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