KNL1 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. 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 zreo, 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.
Basic specification and main parametersFrame63ARated working
voltage240/415VRated frequency50/60HzRated working current16, 20,
25, 32, 40, 50, 63ARated residual operating current0.03, 0.1, 0.3,
0.5ARated residual un-operating current0.015, 0.05, 0.15,
0.25ASensibilityA Type, AC TypeMaximum operating timeIΔn t≤0.1s,
5IΔn t≤0.04Rated making and breaking capacityIn≤50A 500A, In=63A
630ALimiting value of un-operating current6InRated limiting
short-circuit current3000APole number2, 4PMechanical
life10000Company IntroductionWenzhou Korlen Electric Appliances
Co., Ltd, It is a joint venture. My company is
a manufacturer including design, development, produce and
sale, professional producing MCB, MCCB, RCCB and AC contactor etc.
Product enterprises. The company owns import and export power of
self-run, expanding Europe and America, Middle East, Southeast Asia
etc. Market, set a good Public praise. The company have
more than 1500 workers, including senior engineer among them,
engineer at inside of more than 100 technician. And then set up to
cover area more than 50 acres, construct area is more than 38000
square meters of the modern industrial zone, providing with the
forerunner's standard laboratory and various examination
equipments. Under Korlen people to make great effort
unremittingly, designed and developed by oneself, develop and
produce the series of MCB, RCCB filled up local blank, attain
inter-national advanced level, and acquire more than 20 national
patents. The company acquires "30 strong eminent enterprises, top
ten of export income, yueqing star class enterprise, attach
importance to contract and keeps promise" title of honor for many
times past years. Company still the initiative pass ISO 9001
management system verification and 14001 environments management
system verification. Our product passed quality verification of
domestic and international authority organization like the CB SEMKO
NF SIRIM SNI CE PCT TSE, In the meantime high breaking capacity
breaker of our company in this city is the unique product which got
" Yueqing famous brand product" by Yueqing people
government. Korlen Electric Appliances is willing to make
friends with social public, the world outside businessman join
hands together for prosperous society and development to build
a brighter future. CertificatesFactory LinesExhibition/*
January 22, 2024 19:08:37 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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