Zhejiang, China
Business Type:
Number of Employees:
Year of Establishment:
Management System Certification:
ISO9001:2008, ISO14001:2004, GB/T28001-2001 certificate
Annual Revenue:
12.61 Million USD
OEM/ODM Service
Sample Available
MEI Awards

Circuit Breaker, Switch, Electrical Switch manufacturer / supplier in China, offering High Quality 10ka (RCCB) Residual Current Circuit Breaker, High Quality RCCB (KNL7-63) Residual Current Circuit Breaker, High Quality Residual Current Circuit Breaker (KNL7-63) and so on.

Gold Member Since 2009
Audited Supplier
Supplier Homepage Products Residual Current Circuit Breaker High Quality 10ka (RCCB) Residual Current Circuit Breaker

High Quality 10ka (RCCB) Residual Current Circuit Breaker

Get Latest Price
Min. Order: 1,000 Pieces
Port: Shanghai, China
Production Capacity: 200000PCS/Month
Payment Terms: L/C, T/T, Western Union, Paypal
Breaking Capacity: Low Voltage Circuit Breakers
Operation: Electric Type
Speed: Normal Type Circuit Breaker
Arc-extinguishing Medium: Air
Installation: Fixed
Structure: Conventional Circuit Breaker

You Might Also Like


Basic Info

Model NO.: KNL6-63
Poles Number: 1,2,3,4p
Type: Circuit Breaker
Function: RCCB
Certification: CE, UL, CB
Trademark: KORLEN
Transport Package: Carton
Origin: Wenzhou; Zhejiang; China
HS Code: 8536200000

Product Description

Sphere of application 
KNL6 series Residual current circuit breaker(without over-current protection) is suitablefor the line of A and S 50/60Hz, voltage 230V(2pole)/400V(4pole), rated current up to 80A. Whenthere is human electricity shock or if the leakage current of the line exceeds the prescribedvalue, 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 



Rated working voltage


Rated frequency


Rated working current


Rated residual operating current


Rated residual un-operating current



A Type,AC Type,S Type

Maximum operating time

In t≤0.1s , 5In t≤0.04

Rated making and breaking capacity

In≤50A 500A,In=63A 630A,In=63A 1500A

Limiting value of un-operating current


Rated limiting short-circuit current


Pole number


Mechanical life


Electric life


Operation principle 
Each phase of conductor at the circuit breaker passes through the zero-sequence
current tr ansformer, and the secondary side of coil connects with the electromagnetic tripper.Under normal condition, the vector sum of each phase of current passing through zerosequence 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.
High Quality 10ka (RCCB) Residual Current Circuit Breaker


High Quality 10ka (RCCB) Residual Current Circuit Breaker
High Quality 10ka (RCCB) Residual Current Circuit Breaker

Send your message to this supplier

avatar Mr. Lianggui Liu

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now