Gold Member Since 2009
Audited Supplier
Wenzhou Korlen Electric Appliances Co., Ltd.

RCCB, Switch, Circuit Breaker manufacturer / supplier in China, offering High Quality Residual Current Circuit Breaker (KNL7-63), High Quality Knxf 4ways Distribution Box, Knxf-18ways High Quality Distribution Box and so on.

(/ )

Supplier Homepage Product Residual Current Circuit Breaker High Quality Residual Current Circuit Breaker (KNL7-63)

High Quality Residual Current Circuit Breaker (KNL7-63)

FOB Price: Get Latest Price
Min. Order: 1,000 Pieces
Production Capacity: 500000PCS/Year
Transport Package: Carton
Payment Terms: L/C, T/T, Paypal

Request a custom order and have something just for you!

Send Customized Request
Basic Info
  • Model NO.: KNL7-63
  • Operation: Manual Type
  • Arc-extinguishing Medium: Air
  • Structure: RCCB
  • Type: Circuit Breaker
  • Certification: CE, CB
  • Origin: Wenzhou; Zhejiang; China
  • Breaking Capacity: Low Voltage Circuit Breakers
  • Speed: Normal Type Circuit Breaker
  • Installation: Fixed
  • Poles Number: 4
  • Function: Conventional Circuit Breaker
  • Trademark: KORLEN
  • HS Code: 8536200000
Product Description
Product Description:
Application   Model and meaning   
Basic specification and main parameters   Operation principle   
Dimensions(mm)   
Technique parameter:

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
Maximum operating time
In t≤0.1s , 5In 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


Dimensions(mm)
High Quality Residual Current Circuit Breaker (KNL7-63)
Model and meaning
High Quality Residual Current Circuit Breaker (KNL7-63)
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.
High Quality Residual Current Circuit Breaker (KNL7-63)


Send your message to this supplier
Avatar
Mr. Lianggui Liu
Sales Manager
*From:
To: Mr. Lianggui Liu
*Message:

Enter between 20 to 4,000 characters.

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