OEM / ODM Earth Leakage Circuit Breaker Supplier

Iwe urikuda yemhando yepamusoro uye yakasimba Earth Leakage Circuit Breakers?CDADAinopa yakakwana OEM customization mhinduro. Semugadziri akavimbika ane fekitori yedu, tinopa waranti yemakore matatu pane zvigadzirwa zvedu.

Chii chinonzi Earth Leakage Circuit Breaker (CBR)?

AnEarth Leakage Circuit Breaker (CBR), inozivikanwawo seEarth Leakage Circuit Breaker ine Integral Overcurrent Protection (CBR) paIEC 60947-2 Annex B, ndeye yakaomesesa yakaderera-voltage yekudzivirira mudziyo unosanganisa.residual current (earth leakage) kudzivirira pamweoverload uye pfupi-circuit kudzivirira mune imwe molded case unit. Kushanda pa rated voltages kusvika415V AC (50/60Hz) nezviyero zvazvino kubva16A kusvika 800A, maCBR anoshanda semidziyo yekudzivirira yakakwana yeindasitiri, yekutengeserana, uye yakakosha zvivakwa zvekushandisa.

Kusiyana akazvimiriraResidual Current Circuit Breakers (RCCBs)izvo zvinopa chete kuchengetedzwa kwepasi kuvuza, CBRs inobatanidza:

Thermal-magnetic kana yemagetsi overcurrent kudzivirira (L-S-I macurves)

Residual ikozvino kuonekwa (10mA kusvika 1000mA kunzwa)

Short-circuit breaking capacity kusvika ku85kA

Uku kubatanidzwa kunobvisa kudiwa kweakaparadzana MCB/RCCB musanganiswa, kudzikisa nzvimbo yekuisa nekuvandudza kurongeka kwekuvimbika.

Product Categories & Configurations

Classification	Type	Current Range	Hunhu Hunokosha
Residual Current Type	Type AC	16A – 800A	Inoona sinusoidal AC yakasara mafungu chete, general-chinangwa mashandisirwo
Residual Current Type	Type A	16A – 800A	Inoona AC + pulsating DC (yakagadziridzwa AC), mitoro yemazuva ano yemagetsi
Sensitivity (IΔn)	High Sensitivity	10mA - 30mA	Kudzivirirwa kwevashandi, nzvimbo dzekurapa, nzvimbo dzakanyorova
	Medium Sensitivity	100mA - 300mA	Kudzivirirwa kwemoto, general industry
	Low Sensitivity	500mA - 1000mA	Kudzivirirwa kwemoto mune yakakwirira-leakage kuisirwa, yakasarudzika kudzivirira
Nguva Kunonoka	Instantaneous	All ratings	General-chinangwa, <40ms pa5×IΔn
Nguva Kunonoka	Sarudza (S-Type)	100mA - 1000mA	Kunonoka kufamba (130-500ms pa1 × IΔn), rusarura rwepamusoro
Pole Configuration	4-Bango	16A – 800A	Matatu-chikamu + asina kwaakarerekera, anochinjika asina kwaakarerekera kudzivirira (50-100%)
Mounting	Fixed	16A – 800A	Yakananga busbar yekubatanidza, inodhura-inoshanda

Breaking Capacity Grades:

Standard (N): 25kA - 36kA (Distribution network)

Pamusoro (S): 50kA - 70kA (Industrial mains)

Yepamusoro-soro (H): 85kA (Simba zvivakwa)

Core Mabasa & Dziviriro Mano

Yakabatanidzwa Dziviriro Mabasa

Function	Detection Principle	Technical Parameters
Kudzivirira Kwekuwedzeredza (L)	Bimetallic thermal kuwedzera kana yemagetsi RMS kunzwa	0.8 – 1.0 × Mukugadzirisa, inverse time curve, ±10% kunyatsoita
Kunonoka-Kutenderera Kwedunhu (S)	Nguva yemagetsi kana kunonoka kwemagineti	2-10 × In, 0.1s - 0.5s kunonoka, kusarudza kuronga
Rwendo rwepakarepo (I)	Magnetic solenoid kana yemagetsi pakarepo	5-20 × In, <20ms kushanda, ikozvino kumisa
Earth Leakage (G/Δ)	Core Balance Current Transformer (CBCT)	10mA - 1000mA IΔn, ± 10% kunyatsonzwisisa
Ground Fault (GF)	Vector sum current sensing	20-100% yeIn, 0.1s-1.0s kunonoka, core-balance nzira
Kuzviongorora	Mukati wedunhu kuvimbika cheki	Inoenderera CBCT uye rwendo coil yekutarisa, kukanganisa alarm kubuda

Residual Yazvino Kuonekwa Technology

TheCore Balance Current Transformer (CBCT) kanaSravana Sameeralu Serial 4th Sravana Sameeralu Serial 4th Toroidal Transformer inoumba moyo wekudzivirira kwevhu kubuda:

Normal Operation: Ese ma conductor mhenyu (chikamu + asina kwaakarerekera) anopfuura nepakati toroidal musimboti. Mvura yakadzikama inoburitsa magineti anopikisana ayo anodzima kusvika zero net flux-hapana chechipiri chiriko chinokonzerwa .

Fault Condition: Kana kuyerera kwezvino kuchiyerera kuvhu (kuburikidza nekutadza kwekudzivirira kana kubata kwevanhu), kusaenzana kwazvino kunogadzira yasara magineti flux mu toroidal core. Iyi flux inokwevera voltage mumhepo yechipiri, ichipa simba relay inonzwika kana rwendo rwemagetsi rwendo.

Rwendo Hunhu paIEC 61008/61009:

1 × IΔn: Rwendo ≤ 300ms (pakarepo), ≤ 500ms (selective S-type)

2 × IΔn: Rwendo ≤ 150ms (pakarepo), ≤ 200ms (S-mhando)

5 × IΔn: Rwendo ≤ 40ms (pakarepo), ≤ 150ms (S-mhando)

Mamiriro ekushandisa & Mamiriro Ekushandisa

Indasitiri Sector	Specific Application	Typical Specifications
Data Centers	Kugovera kukuru, UPS bypass, bhazi-coupler kuchengetedza	250A-500A, Rudzi A, 300mA S-mhando inosarudza, 70kA Icu, kutaurirana-inogonesa
Healthcare Facilities	Chipatara chikuru kugovera, zvekurapa IT masisitimu, mashandiro emitambo	100A-400A, Rudzi rweA, 10mA/30mA yakanyanya kunzwa, kutarisa kwekuzviparadzanisa nevamwe.
Manufacturing Plants	Motor control centers, welding equipment, variable speed drives	160A-500A, Type B (yeVFDs), 300mA, 50kA Icu, rwendo rwemagetsi
Zvivako zvekutengesa	Kuparadzirwa kwepamusoro-soro, nzvimbo dzekutengesa, nhandare dzendege	125A-400A, Rudzi A, 100mA/300mA, 36kA Icu
Mafuta & Gasi / Marine	Offshore mapuratifomu, madhiri ekuchera, masisitimu emagetsi engarava	250A-500A, Type A, 500mA, tropicalized (T2), isingadziviriri pakuora

Manufacturing Process & Production Workflow

Precision Manufacturing Sequence

Raw Material IQC → Toroidal Transformer Kugadzira → Yakaumbwa Nyaya Yakagadzirwa → Bata Sisitimu Gungano → Yemagetsi Rwendo Chikamu Kubatanidzwa → Residual Yazvino Module Calibration → Yepuraimari Gungano → Yakazara Kuedza → Yekupedzisira QC → Packaging

Akakosha Manufacturing Matanho

Danho	Process Details	Quality Control Points
Sravana Sameeralu Serial 4th Toroidal Transformer Winding	Yakakwira-permeability nanocrystalline kana ferrite musimboti (µr> 10,000), kunyatso mhepo kwepuraimari (kuburikidza-kupfuura) uye yechipiri (kunzwa) mamhepo, vacuum impregnation.	Core magnetization curve verification, yechipiri voltage pa 1 × IΔn ± 5%, insulation kuramba> 100MΩ
Kubatanidzwa kweCBCT	Kuiswa kweiyo toroidal core yakatenderedza ese chikamu / neutral conductor, kudzivirira kune ekunze magineti minda, yekubatanidza kune rwendo relay / zvemagetsi.	Kuyera bvunzo ne6 × Mumutoro (hapana rwendo rwekunetsa), kusadzivirirwa kune 3rd harmonics
Residual Current Trip Mechanism	Sensitive polarized relay (5-50mW rwendo simba) kana yemagetsi MOSFET trigger, mechanic coupling kune main rwendo bar.	Rwendo simba rekuongorora, nguva yekupindura <20ms, kugadzikana kwekushisa -25°C kusvika +70°C
Molded Case Production	BMC thermosetting plastiki (DMC-2) jekiseni rekugadzira, 150-180 ° C kurapwa, yakakwirira yekutevera kuramba> 600V	Dimensional kushivirira ± 0.1mm, dielectric simba> 15kV/mm, murazvo unodzora UL 94 V-0
Main Contact Assembly	Sirivha-yakapfatwa mhangura (AgNi 90/10) inobatika, CNC-yakagadzirwa maoko, inopenya munitrogen mamiriro	Bata kuramba <50μΩ, sirivha ukobvu 8-12μm (XRF), kuoma HV 100-150
Electronic Trip Unit Programming	Microprocessor-based LSIG + Δ kuchengetedzwa, firmware upload, curve calibration, kutaurirana protocol setup	± 5% ikozvino chaiyo, ± 10% nguva chaiyo, ZSI (Zone Selective Interlocking) kuongororwa
Kubatanidzwa Kwekupedzisira & Kugadziriswa	Gungano remhepo inopisa-magineti kana yemagetsi rwendo system ine yasara yazvino module, mechanic interlocking, mubato wekubata	Yakasanganiswa overcurrent + yepasi kuvuza rwendo rwekuongorora, dielectric inomira 3kV/1min

Primary Raw Materials & Component Specifications

Chikamu	Kutsanangurwa Kwezvinhu	Supplier Standards	Key Properties
Toroidal Core (CBCT)	Nanocrystalline alloy (Finemet) kana Mn-Zn ferrite (PC40)	IEC 60404-8, JIS C 2531	Yakakwira permeability µr> 10,000, yakaderera kumanikidza <2A/m, saturation flux density>1.2T
Kunzwa Coil Wire	Enameled copper wire (0.05-0.1mm), Kirasi F 155°C	IEC 60317	Kuparara kwemagetsi > 1kV, kushanduka > 10 × dhayamita, solderability 390°C
Trip Relay	Polarized latching relay, senitivity 5-50mW	IEC 61810	Nguva yekupindura <10ms, coil kuramba 1-5kΩ, hupenyu hwemagetsi> 10⁶ mashandiro
Molded Case Housing	BMC (Bulk Molding Compound) DMC-2, girazi faibha yakasimbiswa	IEC 60664-1, UL 94 V-0	Tracking index>600V, heat resistance 180°C, simba rekuita>8 kJ/m²
Main Contacts	Electrolytic mhangura (Cu-ETP) + Silver-nickel plating (AgNi 90/10)	ASTM B152	Conductivity ≥100% IACS, arc erosion resistance, anti-welding properties
Bimetallic Elements	Inconel/passivated simbi inoumbwa (ASTM TM2)	ASTM B388	Deflection rate 0.15-0.25mm/°C, kugadzikana kwenguva refu ± 3%, kuramba
Electronic Components	Industrial-giredhi PCBs, Hall-effect sensors, ARM Cortex-M4 processors	IEC 60721-3-3, IEC 61000	Kushanda tembiricha -25°C kusvika +70°C, EMC kusadzivirirwa Level 4, SIL 2 inokwanisa
Zviteshi	T2 mhangura (C11000) ine tin plating (8-12μm)	ASTM B187/B16	Yazvino density 1.2-1.5 A/mm², torque inomira 5-15Nm, corrosion resistance
Operating Mechanism	Chitubu simbi (SWOSC-V) kana Stainless simbi (301)	JIS G 3560	Kuneta hupenyu> 20,000 kutenderera, kusimba simba 1800-2000MPa, kuzorora <5%

Mitemo Yekutevedzera & Kuedza Protocol

International Standards Framework

Standard	Scope	Inoshanda Ratings
IEC 60947-2 Annex B	Circuit-breaker zvinosanganisira zvakasara zvekudzivirira ikozvino (CBR)	Industrial CBRs> 80A, kuchengetedzwa kwakakwana
EN 60947-2	European Harmonized version yeIEC 60947-2	CE yekumaka, EU musika kutevedzera
GB/T 14048.2	Chinese national standard yakaenzana	CCC certification, China musika

Mandatory Type Tests (IEC 60947-2 + Annex B)

Test Category	Specific Test	Maitiro ekugamuchira
Residual Current Performance	Nguva yekufamba pa1×IΔn, 2×IΔn, 5×IΔn	≤300ms, ≤150ms, ≤40ms (pakarepo); S-mhando: ≤500ms, ≤200ms, ≤150ms
	Kwete-kutsika pa0.5×IΔn	Hapana rwendo rwe2 × yakatarwa kunonoka nguva
	Surge ikozvino inomira (8/20μs, 3kA)	Hapana rwendo rwekunetsa, Rudzi rweA: 250A impulse, Rudzi F: 1000A, Rudzi B: 3000A
Overcurrent Protection	Tembiricha inokwira pane yakatarwa In	Zviteshi ≤80K, nyaya ≤40K
	Short-circuit breaking (Icu/Ics)	3 mashandiro, kukanganisa kwakabudirira, dielectric kupora
	Trip curve verification (L-S-I)	± 10% ikozvino kurongeka, ± 20% nguva yakarurama
Dielectric Properties	Simba-frequency kutsungirira (2.5kV-3.5kV/1min)	Hapana kuparara, hapana flashover
Dielectric Properties	Simba rinomira (8kV 1.2/50μs)	Hapana kukanganisa kubuda
Mechanical & Environmental	Mechanical endurance (10,000-20,000 cycles)	<5% parameter Drift, hapana kukundikana
Mechanical & Environmental	EMC kusadzivirirwa (IEC 61000-4 yakatevedzana)	Hapana kunetsa kugumburwa kubva kuradiated/kuitwa kukanganiswa

Factory Quality Control & Inspection Standards

Incoming Material QC (IQC)

Material	Zvinhu Zvokuongorora	Sampling Plan	Equipment
Toroidal cores	Magnetic permeability, saturation flux, kurasikirwa kukuru	Per batch, BH curve yekuyedza	BH analyzer, impedance analyzer
Sensing waya	Diameter, insulation thick, breakdown voltage	AQL 0.65	Micrometer, dielectric tester
BMC plastiki musanganiswa	Girazi yemukati, viscosity, kurapa maitiro, indekisi yekutevera	Per batch, COA + kuyedza	Rheometer, DSC analyzer, yekutevera bvunzo zvishandiso
Silver plating solution	Metal concentration, pH, tsvina	Kutariswa kwezuva nezuva	Atomic absorption spectrometer
Electronic components	Basa rekuedza, parameter verification, firmware version	100% AOI, 5% inoshanda	LCR mita, oscilloscope, muganhu scan

In-Process Quality Control (IPQC)

Chiteshi	Kudzora Parameters	Frequency	Nzira
Toroidal transformer mhepo	Inotendeuka reshiyo, inductance, insulation kuramba	Chikwata chese	LCR mita, insulation tester
Musangano weCBCT	Balance bvunzo ine yakayerwa mutoro, kusadzivirirwa kune harmonics	Ese zana mayunitsi	Yekutanga jekiseni bvunzo, harmonic jenareta
Residual current calibration	Rwendo chikumbaridzo paIΔn, nguva yekupindura, isiri-rwendo pa 0.5 × IΔn	Chikwata chese	Automated RCD tester (0.5-1000mA programmable)
Main contact assembly	Bata gap, pressure, alignment, resistance	Ese zana mayunitsi	Simba geji, micro-ohmmeter
Kubatanidzwa kwekupedzisira	Yakasanganiswa overcurrent + yepasi kuvuza rwendo rwekuongorora	Chikwata chese	Yakabatanidzwa bvunzo bhenji (yekutanga jekiseni + leakage simulation)

Yekupedzisira Hunhu Kudzora (FQC) & Inobuda QC (OQC)

Test Item	Standard	Saizi Saizi
Yasara nguva yerwendo yazvino	1×IΔn, 2×IΔn, 5×IΔn paIEC 61008/61009	100%
Kuedza kusiri rwendo pa0.5×IΔn	2 × yakatarwa kunonoka nguva	100%
Overcurrent trip curve	1.05×In, 1.25×In, 5×In, 10×In	100%
Dielectric inomira voltage	2.5kV AC/1min	100%
Insulation resistance	>100MΩ @ 500V DC	100%
Bata kuramba	<50μΩ padanda	100%
Torque yekumaka verification	Terminal tightening maererano nezvinodiwa	100%
Visual & dimensional kuongorora	Zero kukanganisa pazviyero zvakakosha	100%
Kuisa chiratidzo chekusingaperi	Solvent wiping, abrasion test	AQL 1.0
Packaging kutendeseka	Drop test, vibration (ISTA 3A)	Per lot

Production Infrastructure & Manufacturing Capability

Advanced Production Equipment

Equipment Category	Muchina Specification	Function	Capacity
Toroidal Winding Machines	Automated toroidal winding ine tension control	CBCT yekutanga / yechipiri mhepo, chaiyo layering	5,000 transformers / zuva
Core Annealing Furnace	Vacuum annealing ne nitrogen atmosphere	Nanocrystalline core heat treatment, stress relief	2,000 cores / batch
Jekiseni Molding	300-ton BMC thermosetting press	CBR dzimba, arc chute, terminal blocks	3,000 makesi / zuva
CNC Machining	5-axis vertical machining centre	Precision yekubata machining, yakaoma geometries	8,000 yekuonana seti / mwedzi
Surface Treatment	Automated sirivheri plating line	Bata plating 8-12μm, ukobvu kufanana ± 1μm	4,000 kg / zuva
Assembly	Masero egungano rebasa	Mechanism musangano, CBCT kubatanidzwa, calibration	1,500 zvikamu / zuva pamutsetse
Testing Equipment	Yakabatanidzwa CBR test bhenji	Yakasanganiswa overcurrent + yasara ikozvino verification	300 zvikamu / awa
	EMC bvunzo kamuri (3m/10m, Teseq)	Kusadzivirirwa/kubuda bvunzo dzemagetsi mayunitsi	50 zvikamu / zuva

Kukwanisa Kugadzira & Nguva Yekutungamira

Product Category	Monthly Capacity	Standard Lead Time	Urgent Order Kugona
CBR 4P (16A-125A)	10,000 zvikamu	4-5 mavhiki	3 mazuva (stock components)
CBR Industrial (160A-400A)	8,000 zvikamu	4-5 mavhiki	5 mazuva
CBR Heavy Industrial (630A-800A)	3,000 zvikamu	4-5 mavhiki	7 mazuva
Tsika zvigadziriso (yakakosha IΔn, macurves)	Project base	5-6 vhiki	2 mavhiki

Injiniya & Tekinoroji Yechikwata Chimiro

Dhipatimendi	Vashandi	Nyanzvi	Mabasa
R&D Injiniya	5 mainjiniya	Residual yazvino tekinoroji, magineti sensor dhizaini, embedded masisitimu, magetsi emagetsi	Kuvandudzwa kutsva kweCBR, Type B/F/B+ kuvandudzwa, patent portfolio (40+ patents)
Process Engineering	18 mainjiniya	Toroidal transformer kugadzira, BMC kuumba, chaiyo gungano, kuonda kugadzira	Kugadziriswa kwekugadzira, zvinyorwa zveSOP, kuvandudza goho (> 99.5%)
Testing & Validation	15 mainjiniya	Yepamusoro-yazvino kuyedzwa, yasara yazvino simulation, EMC, kuyedza kwezvakatipoteredza	Type yekuyedza kurongeka (IEC 60947-2 Annex B, IEC 61008/61009), kuongororwa kwekutadza
Injiniya yekushandisa	10 mainjiniya	Kusarudzika kurongeka, zvirongwa zvekudzivirira kwepasi, EV / zvinogoneka kushandiswa	Tsigiro yehunyanzvi hwevatengi, zvidzidzo zverusarura, kutumwa kwesaiti
Hunhu Hwakanaka	30 technicians	ISO 9001, ISO 14001, statistical process control, metrology laboratory	Supplier audit, process audit, kugadzirisa zviito, calibration manejimendi

Certifications & Compliance Documentation

Certification	Kuburitsa Body	Scope	Validity
ISO 9001:2015	ZHONGDA HUAYUAN	Quality management system	Kuongororwa kwegore
IEC 60947-2 Annex B Type Test	EUROLAB	CBR maindasitiri kuita	Per product series
CE Kumaka	Notified Body	EU kuwana musika	Dhizaini-inotsamira
CCC (China)	CQC	Chinese compulsory certification	5-makore echokwadi
CB Chirongwa	IECEE	International certification	Per product series

Nei Yedu CBR Kugadzira Yakamira Yakasiyana

Nzvimbo yedu yekugadzira inomiririra40 makore ehunyanzvi mune yasara yazvino uye yepasi inodzivirira tekinoroji yekudzivirira, kuendesa maCBR anopfuura mwero wepasirese kuburikidza:

Toroidal transformer inyanzvi: In-house nanocrystalline musimboti kugadzirwa, kunyatso mhepo mhepo otomatiki, uye yakazara CBCT kuyedzwa kuve nechokwadi <± 5% senitivity kurongeka.

Vertical integration: Kubva pakugadzirisa zvinhu kusvika pagungano rekupedzisira, kutonga kwakazara pamusoro pezvinhu zvakakosha (toroidal transformers, electronic trip units, molded cases)

Yepamberi yekuyedza zvivakwa: $3M+ yakadyarwa muyakasanganiswa CBR bvunzo masisitimu anokwanisa kuita panguva imwe chete overcurrent uye yasara yazvino verification, Type B DC sensitivity yekuongorora, uye EMC kutevedzera

Global certification strategy: Multi-standard kutevedzera inogonesa isina musono kupinda mumusika munyika dzinopfuura zana pasina kuyedzwa

Nezve tekinoroji, sarudzo dzekubatanidza zvidzidzo, Type B application kutungamira, kana kurongwa kwefekitori yekuongorora, timu yedu yeinjiniya inopa kubvunzana kwakananga kuti ive nechokwadi chekuti chivakwa chako chekudzivirira kwepasi chinosangana nezvinodiwa kuchengetedza vashandi uye kuenderera mberi kwezvinangwa.

CDADA ndeye Earth Leakage Circuit Breaker mugadziri uye mutengesi muChina. Fekitori yedu inoshandisa maindasitiri akasiyana akadai semagetsi masisitimu, kuvaka otomatiki, uye kugadzira maindasitiri, ichipa inoshanduka OEM/ODM mhinduro.

Nhau Kurudziro