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

Residual Current Circuit Breaker, Rccb, Rcd manufacturer / supplier in China, offering High Quality RCCB (KNL7-63) Residual Current Circuit Breaker, High Quality Residual Current Circuit Breaker (KNL7-63), F360 Residual Current Circuit Breaker Knl1-63 and so on.

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High Quality RCCB (KNL7-63) Residual Current Circuit Breaker

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Min. Order / Reference FOB Price
100 Pieces US $6.85/ Piece
Port: Shanghai, China
Production Capacity: 200000PCS/Month
Payment Terms: T/T
Breaking Capacity: Low Voltage Circuit Breakers
Operation: Electric Type
Speed: Normal Type Circuit Breaker
Arc-extinguishing Medium: Air
Installation: Fixed
Structure: Conventional Circuit Breaker

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Basic Info

Model NO.: KNL7-63
Poles Number: 2, 4p
Type: Circuit Breaker
Function: RCCB
Certification: CB
Frame: 63A
Rated Working Voltage: 240/415
Rated Working Current: 16;20;25;32;40;50;63A
Rate Limiting Short-Circuit Current: 6000A
Mechanical Life: 10000
Electric Life: 4000
Trademark: korlen
Transport Package: Carton
Specification: CE
Origin: Wenzhou

Product Description

KNL7 series Residual current circuit breaker(without over-current protection) is suitable for the line of A and S 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.

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.
Frame class63A
Rated working voltage240/415V
Rated frequency50/60Hz
Rated working current16,20,25,32,40,50,63A
Rated residual operating current0.03,0.1,0.3A
Rated residual un-operating current0.015,0.05,0.15A
SensibilityAC Type,A Type,S Type
Maximum operating timeIΔn t≤0.1s , 5IΔn t≤0.04
Rated making and breaking capacityIn≤50A 500A,In=63A 630A
Limiting value of un-operating current6In
Rated limiting short-circuit current6000A
Pole number2,4P
Mechanical life10000

High Quality RCCB (KNL7-63) Residual Current Circuit Breaker
High Quality RCCB (KNL7-63) Residual Current Circuit Breaker
High Quality RCCB (KNL7-63) Residual Current Circuit Breaker

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