High-Quality DC Circuit Breaker Manufacturer

CDADAmugadziri akavimbika uye mutengesi weDC circuit breakers. Zvigadzirwa zvedu ndezvemhando yepamusoro, zvinovimbika, uye tekinoroji yepamusoro. Isu tine hunyanzvi mukugadzira mhinduro dzakagadzirirwa maindasitiri akadai sesimba idzva, tichikupa yakakwana, imwe-inomira OEM masevhisi.

Chii chinonzi DC Circuit Breaker?

A DC circuit breaker chishandiso chekudzivirira chakasarudzika chakagadzirirwa kukanganisa maseketi akananga (DC) pasi pekuremerwa, pfupi-dunhu, kana kukanganisa. Kusiyana nema AC mabreaker anobatsira kubva kune yazvino zero-kuyambuka (100-120 nguva pasekondi pa50/60Hz), DC mabreak anofanira kudzima nechisimba.inoenderera, unidirectional arc iyo inoshaya masikirwo ekudzima zvinhu. Uyu mutsauko wakakosha unoda tekinoroji yekudzima tekinoroji, zvichiita kuti maDC anopwanya ave akakura mumuviri, akaomarara, uye anodhura kupfuura mamwe awo eAC.

DC circuit breaker dzinoshanda pamagetsi emagetsi kubva12V kusvika 1500V DC, ine zviyero zvazvino2A kusvika 2500A. Ivo vanoshanda seyakakosha kuchengetedza zvikamu mu solar photovoltaic (PV) masisitimu, bhatiri simba rekuchengetedza masisitimu (BESS), mota yemagetsi (EV) inochaja infrastru.cture, nzvimbo dzedhata neDC kugovera magetsi, maindasitiri eDC mota zvinodzora, uye masisitimu emagetsi emugungwa.

Dambudziko guru mukukanganiswa kweDC riri mukatiarc extinction physics: DC arcs inochengetedza makoramu eplasma akagadzikana ane tembiricha inodarika 10,000 ° C, inoda kumanikidzwa kurebesa, kutonhora, uye deionization kuburikidza nemagineti minda, arc chutes, uye nyanzvi yekusangana zvinhu.

Product Categories & Configurations

Classification	Type	Yazvino / Voltage Range	Hunhu Hunokosha
Nekuvaka	DCMCB (Miniature)	2A – 125A, 250V – 1000V DC	DIN njanji inokwira, yakagadziriswa rwendo marongero, yekugara / yekutengesa PV
	DCMCCB (Nyaya Yakaumbwa)	10A - 2500A, 500V - 1500V DC	Inogadziriswa rwendo mayuniti, yakakwirira kutyora kugona, indasitiri / utility
	DCACB (Air Circuit Breaker)	630A - 6300A, 1000V DC	Dhizaini-dhizaini, kuchengetedzwa kwemagetsi, kugovera simba
	Solid-State DC Breaker	100A - 5000A, kusvika ku1500V DC	Semiconductor-yakavakirwa, <1ms kushanda, hapana arcing, mutengo wekutanga
By Voltage Rating	Low Voltage	12V - 250V DC	Zvemotokari, zvemugungwa, zvekufonerana
	Epakati Voltage (PV Standard)	250V - 1000V DC	Solar PV tambo, mabhokisi ekubatanidza, ekugara / ekutengesa
	High Voltage	1000V - 1500V DC	Utility-chiyero PV, bhatiri kuchengetedza, EV inokurumidza kuchaja
By Pole Configuration	1-Bango	250V DC	Imwe-tambo PV, yakaderera-voltage DC
	2-Pole (Series)	500V - 750V DC	Mid-voltage PV, dual-pole series yekubatanidza
	3-Bango	750V DC	Matatu-chikamu DC masisitimu, nyanzvi maindasitiri
	4-Pole (Series)	1000V - 1500V DC	Yakakwira-voltage PV, bhatiri racks, EV zvivakwa
By Trip Technology	Thermal-Magnetic	2A – 800A	Bimetallic overload + solenoid pfupi-circuit, ine mari
	Electronic	100A - 2500A	Microprocessor-based, inogadziriswa curves, kutaurirana
	Magnetic Chete	10A – 100A	Short-circuit chete, kudzivirira mota, kukurumidza kushanda

Critical Designation:Polarity Sensitivity DC mabreaker anofanirwa kuiswa chiratidzozvakanaka (+) uye zvakaipa (-) materminals, ane zviratidzi zvinotungamira. Reverse polarity kuisirwa kunogona kukonzera kutadza kukuru nekuda kweasymmetric arc maitiro.

Core Mabasa & Operating Principle

Iyo DC Arc Dambudziko

Kusiyana nema AC arcs anodzima zvakasikwa pazvino zero-kuyambuka, DC arcs inopa yakasarudzika yekudzima matambudziko:

Parameter	AC Arc	DC Arc
Current waveform	Sinusoidal, zero-kuyambuka yega 10ms (50Hz)	Kuenderera mberi, kusingagumi ukuru
Arc voltage	Inoshanduka nezvino	Yakagadzikana, inoda kutsakatika kwechisimba
Arc kupera	Natural pa zero-crossing	Kumanikidzwa kurebesa + kutonhora kunodiwa
Arc simba	Pulsed, yakaderera pakati	Inoenderera mberi, yakanyanya kupisa
Kubatana kupfeka	Pakati nepakati	Zvakaoma pasina kudzima kwakakodzera
Inodiwa gap	Mudiki	2-3 × yakakura kune yakaenzana voltage

Arc Extinction Technologies

Vadivelu Comedy Technology	Mechanism	Application	Performance
Magnetic Blowout	Lorentz simba F = I × L × B inotyaira arc mumapureti anopatsanura pa50-200 m/s	Universal yeDC MCB/MCCB	Yakawanda yakajairika, inodhura-inoshanda, 10-20kA kutyora
Arc Chute ine Splitter Plates	Arc yakakamurwa kuita zvikamu zvakatevedzana, zvakatonhorera, deionized	Yakajairwa mune ese DC mabreaker	Essential chikamu, voltage kudonha pandiro 30-50V
Permanent Magnets	NdFeB magineti (0.1-0.3T) perpendicular kune arc nzira	Compact DC MCBs	Hapana simba rekunze, tembiricha-yakagadzikana kusvika 150°C
Electromagnetic Blowout Coil	Inozvisimbisa coil inogadzira munda wakaenzana nechakaipa chazvino	High-current MCCBs	Simba rinowedzera neazvino, inogadzirisa kuchengetedza
Vacuum Interruption	Arc yakadzimwa muvacuum (hapana ionzable medium)	High-voltage DC, nyanzvi	Yakanakira> 1000V DC, hupenyu hurefu, hunodhura
Mhepo Blast	Mhepo yakamanikidzwa inotonhorera uye inotambanudza arc	High-simba maindasitiri, nhaka	Kuchengetedza kwepamusoro, kusawanzoshandiswa mumagadzirirwo emazuva ano

Magnetic Blowout Physics

The Lorentz force equation inotonga DC arc manipulation:

F = I × L × B

Kupi:

F = Simba pane arc (Newtons)

I = Arc ikozvino (Amperes)

L = Arc kureba (mamita)

B = Magnetic flux density (Tesla)

Muenzaniso Kuverenga:

Arc ikozvino: 1000A

Arc kureba: 0.02m (2cm)

Magnetic munda: 0.2T

Simba: F = 1000 × 0.02 × 0.2 = 4N

Kukwidza: a = 4N / (5×10⁻⁴ kg/m × 0.02m) = 400,000 m/s²

Uku kukwidziridzwa kwakakura kunotyaira arc kuita mahwendefa akatsemuka mukati memilliseconds, kwainopatsanurwa, kutonhora, uye kudzima.

Mamiriro ekushandisa & Mamiriro Ekushandisa

Indasitiri Sector	Specific Application	Typical Specifications	Zvinodikanwa Zvinokosha
Solar PV (Residential)	Kudzivirirwa kwetambo, mabhokisi ekubatanidza	10A-32A, 250V-500V DC, 2-danda, Type C curve	UV kuramba, IP65 yakavharirwa, 20kA Icu
Solar PV (Commerce)	Combiner bhokisi huru, inverter kudzivirira	63A-125A, 500V-1000V DC, 4-danda, 10-20kA Icu	High ambient (60°C), reverse current inomira
Solar PV (Utility)	Central inverter, DC muunganidzwa	250A-800A, 1000V-1500V DC, DC MCCB, 50kA Icu	Kusarudza kuronga, kutarisa kure
Battery Energy Storage	Battery rack kuchengetedza, DC bhazi	125A-630A, 750V-1500V DC, rwendo rwemagetsi, 4-pole	Bidirectional dziviriro, yakakwirira pfupi-yedunhu ikozvino
EV kuchaja	DC inokurumidza charger kuchengetedza, bhatiri interface	200A-400A, 500V-1000V DC, kutsungirira kwakanyanya	Kakawanda kushanda, yakakwirira inrush, SIL 2 kuchengeteka
Data Centers	380V DC kugovera, UPS kuchengetedzwa	63A-250A, 380V DC, yakanyanya kutyora, yakaderera simba rega	Minimal downtime, kusarudza kurongeka
Rail Traction	Metro, tram, njanji DC inopa	1000A-4000A, 750V-1500V DC, DC ACB	High mechanical endurance, vibration resistance
Marine/Offshore	Ship DC kugovera, offshore mapuratifomu	100A-400A, 500V DC, isingadziviriri	Kupfapfaidza munyu, tropicalized, redundant tripping

Manufacturing Process & Production Workflow

Precision Manufacturing Sequence

Raw Material IQC → Bata System Fabrication → Arc Chute Gungano → Magnetic System Kubatanidzwa → Mechanism Gungano → Rwendo Unit Calibration → Yepuraimari Gungano → Yepamusoro-Yazvino Kuyedzwa → Yekupedzisira QC → Packaging

Akakosha Manufacturing Matanho

Danho	Process Details	Quality Control Points
Contact Fabrication	Silver-tungsten (AgW 70/30) kana mhangura-tungsten (CuW 80/20) matipi ekuonana, brazing kune vatakuri vemhangura, kupukuta geometry kugadzira.	Kuoma HV 120-180, arc erosion kuramba, kubata kuramba <1mΩ, brazing simba> 80MPa
Arc Chute Kuvaka	Ceramic splitter plates (6-15 mahwendefa zvichienderana nevoltage), simbi arc runners, zvachose magineti kubatanidzwa, optimized arc chamber geometry.	Dielectric simba> 3kV, arc quenching nguva <10ms, magnetic flux density 0.15-0.25T
Magnetic Blowout System	NdFeB zvachose magineti kuiswa (N52 giredhi), danda chidimbu machining, magineti wedunhu optimization, tembiricha muripo	Flux density ± 10% kushivirira, tembiricha coefficient -0.1%/°C, demagnetization kuramba
Mechanism Assembly	Kurumidza kugadzira / nekukurumidza-break toggle, chitubu chekuchengetedza simba, rwendo-yemahara yekubatanidza, kusangana nekumanikidza zvitubu	Bata kuvhura kumhanya> 1.2 m/s, kutsungirira kwemuchina 20,000 kutenderera, nguva yerwendo <20ms
Trip Unit Calibration	Bimetallic thermal element calibration (± 5% kunyatsoita), magineti solenoid gap kugadzika, nguva-yazvino curve verification.	1.05×Musina-rwendo, 1.25×Murwendo <1h, 5×Nepakarepo, kutema data
Yepamusoro-Yazvino Kuedzwa	Yekutanga jekiseni kuyedzwa pa10kA-20kA, arc kupera kusimbiswa, kuyerwa kwekukwira kwekushisa.	Kuputsa simba rekusimbisa, kubata kupfeka <5% mushure mekuedzwa, dielectric kupora

Primary Raw Materials & Component Specifications

Chikamu	Kutsanangurwa Kwezvinhu	Supplier Standards	Key Properties
Main Contacts	Silver-tungsten (AgW 70/30) kana mhangura-tungsten (CuW 80/20)	ASTM B702, IEC 60368	High arc erosion resistance, anti-welding, conductivity 45-55% IACS
Arc Chute Plates	Alumina ceramic (Al₂O₃ 95%) kana steatite	IEC 60672	Kupisa kupisa> 1200°C, dielectric simba>15kV/mm, arc quenching
Permanent Magnets	NdFeB N52 (Neodymium-Iron-Boron)	IEC 60404-8-1	Remanence 1.48T, coercivity> 1000kA/m, tembiricha yakatsiga kusvika 150°C
Magnetic Pole Zvimedu	Yakaderera-kabhoni simbi 1008 kana nesilicon simbi	ASTM A1008	Yakakwira permeability, yakaderera remanence, magineti flux kutungamira
Molded Case	BMC (DMC-2) thermosetting kana PA66 GF30	IEC 60664-1, UL 94 V-0	Tracking index> 600V, heat resistance 180°C, arc containment
Bata Springs	Beryllium mhangura (CuBe2) kana simbi isina tsvina 301	ASTM B196	Kuneta hupenyu> 50,000 kutenderera, kunoenderana kudzvanywa, corrosion resistance
Zviteshi	Mhangura C11000 ine tin kana sirivha plating	ASTM B187	Yazvino density 1.5-2.0 A/mm², yakaderera kuonana kuramba, oxidation kuramba
Bimetallic Elements	Inconel/passivated simbi inoumbwa	ASTM B388	Deflection rate 0.2mm/°C, kugadzikana ±3%, calibration yechokwadi ±5%
Electronic Components (yemagetsi erwendo rwemayuniti)	Industrial-giredhi PCBs, Hall sensors, ARM processors	IEC 60721-3-3	-25 ° C kusvika +70 ° C kushanda, EMC Level 3, SIL 2 inokwanisa

Mitemo Yekutevedzera & Kuedza Protocol

International Standards Framework

Standard	Scope	Inoshanda Ratings
IEC 60947-2	Low-voltage switchgear - Circuit-breakers (inosanganisira DC)	Yese chiyero cheDC mabreaker anosvika 1500V DC
IEC 60898-2	Circuit breakers for DC operation (yeimba)	DC MCBs kusvika 125A, 220V DC (1-danda), 440V DC (2-danda)
IEC 61643-31	SPDs ye photovoltaic application	DC surge kuchengetedza kurongeka nemabreaker
GB/T 14048.2	Chinese national standard	CCC certification yemusika weChina

Yakakosha DC Yekuyedza Zvinodikanwa:

Yakakosha DC inotakura ikozvino bvunzo: Kusimbiswa kweiyo yekucheka-kubvisa ikozvino uko nguva yeacing inowedzera zvakanyanya

Short-circuit breaking capacity: Yakaedzwa pakakwirira DC voltage ine yakatarwa nguva nguva (L / R reshiyo)

Overload performance: Kusimbiswa kwerwendo rwekupisa pa1.45×In kweawa imwe

Mandatory Type Tests (IEC 60947-2 yeDC)

Test Category	Specific Test	Maitiro ekugamuchira
Tembiricha Kukwira	Inoenderera ikozvino payakayerwa In	Zviteshi ≤80K (silver), ≤65K (isina), kesi ≤40K
Dielectric Properties	Simba-frequency kutsungirira (2.5kV-3.5kV/1min), impulse (8kV)	Hapana kuparara, hapana flashover
Tripping Characteristics	Kuwedzeredza: 1.05×In (hapana rwendo), 1.25×Mu/1.45×In (rwendo mukati memiganhu)	Nguva dzekufamba dzakajairwa pacurve
	Pfupi-dunhu: 5 × Mu, 10 × Mukufamba kwepakarepo	<20ms kushanda
Kushanda Kwekuita	Mechanical: 20,000 cycles; Magetsi: 10,000 cycles	<5% parameter drift
Short-Circuit Breaking	Icu (yekupedzisira), Ics (sevhisi) payakayerwa DC voltage	Kukanganisa kwakabudirira, hapana kuonana welding
Yakakosha DC Mutoro Wazvino	Verification of arcing time limits	Hapana arcing yakawandisa mukati meiyo yakatarwa
Magnetic Blowout Verification	Arc kupera nguva, arc chamber kutendeseka	<10ms arc nguva, hapana kutyora kwekamuri
Environmental	Kupisa kwakanyorova, kutonhora, kupisa kwakaoma, vibration	Inoshanda mushure mekugadzirisa

Factory Quality Control & Inspection Standards

Incoming Material QC (IQC)

Material	Zvinhu Zvokuongorora	Sampling Plan	Equipment
Tungsten kuonana mazano	Density, kuoma, sirivheri yemukati, dimensional kushivirira	Per batch	Spectrometer, hardness tester, CMM
NdFeB magineti	Remanence, coercivity, tembiricha coefficient, plating	Per batch	Hysteresisgraph, Helmholtz coil
Ceramic ndiro	Dielectric simba, thermal shock resistance, zviyero	Per batch	Dielectric tester, thermal shock chamber
Vatakuri vemhangura	Conductivity, kuoma, plating ukobvu	Per batch	Conductivity mita, micrometer, XRF
Thermosetting plastiki	Girazi yemukati, viscosity, nguva yekurapa, kupisa	Per batch	DSC, melt flow indexer, UL 94 zvishandiso

In-Process Quality Control (IPQC)

Chiteshi	Kudzora Parameters	Frequency	Nzira
Contact brazing	Tembiricha 800-850 ° C, mhepo, simba rekubatana	Ese zana mayunitsi	Thermocouple, shear tester, metallography
Magnet kuiswa	Polarity verification, flux density, alignment	Chikwata chese	Flux mita, chiratidzo system
Arc chute musangano	Plate spacing, kurongeka kwemagineti, mumhanyi geometry	Ese makumi mashanu mayuniti	Go/no-go geji, flux density mepu
Mechanism calibration	Kuvhura kumhanya, kusangana nekumanikidza, rwendo simba	Chikwata chese	High-kumhanya kamera, simba gauge, otomatiki bhenji
Trip unit test	Nguva-yazvino curve, rwendo rwepakarepo, ambient muripo	Chikwata chese	Yekutanga jekiseni tester (10,000A), kutema data

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

Test Item	Standard	Saizi Saizi
Polarity marking verification	Kururamisa +/-/current direction marking	100%
Bata kuramba	<1mΩ padanda	100%
Dielectric inomira voltage	2.5kV AC/1min	100%
Insulation resistance	>100MΩ @ 500V DC	100%
Tripping maitiro	1.05×In, 1.25×In, 5×In, 10×In verification	100%
Magnetic blowout basa	Arc extinction bvunzo pane yakatarwa ikozvino	100%
Mechanical operation	10 ON-OFF kutenderera, kushanda zvakanaka	100%
Visual & dimensional kuongorora	Clearance, creepage, marking permanence	100%
High-current sampling	Kutyora simba rekuongorora (10kA)	AQL 0.65
Packaging kutendeseka	Drop test, vibration (ISTA 3A)	Per lot

Production Infrastructure & Manufacturing Capability

Advanced Production Equipment

Equipment Category	Muchina Specification	Function	Capacity
Contact Fabrication	Vacuum brazing choto (10⁻³ mbar, 900°C)	Tungsten-sirivha yekubatanidza brazing	5,000 mazita / zuva
Magnet Assembly	Kuiswa magineti otomatiki nekuona polarity	NdFeB magineti kubatanidzwa, flux verification	3,000 magungano / zuva
Arc Chute Production	Ceramic ndiro kudzvanya, kupfura, metallization	Splitter plate kugadzira	10,000 ndiro / zuva
Mechanism Assembly	Masero ekubatanidza vashandi	High-speed kusangana, calibration	2,000 zvikamu / zuva pamutsara
Testing Equipment	Yekutanga jekiseni test set (20,000A DC kugona)	Kuongororwa kwerwendo rwepamusoro-ikozvino	300 zvikamu / zuva
	Arc extinction test chamber (yakanyanya-kumhanya kufungidzira)	Arc maitiro ekuongorora, blowout verification	50 zvikamu / zuva
	Environmental test chamber (tembiricha, humidity, vibration)	IEC 60068-2 kutevedzera	100 zvikamu / zuva

Kukwanisa Kugadzira & Nguva Yekutungamira

Product Category	Monthly Capacity	Standard Lead Time	Urgent Order Kugona
DC MCB 1P/2P (10A-63A, 250V-500V)	200,000 zvikamu	4-5 mavhiki	5 mazuva
DC MCB 4P (63A-125A, 1000V)	100,000 zvikamu	4-5 mavhiki	7 mazuva
DC MCCB (125A-400A, 500V-1000V)	30,000 zvikamu	4-5 mavhiki	10 mazuva
DC MCCB (630A-1600A, 1000V-1500V)	10,000 zvikamu	4-5 mavhiki	2 mavhiki
High-voltage DC (1500V+, nyanzvi)	Project base	8-12 mavhiki	4 mavhiki

Injiniya & Tekinoroji Yechikwata Chimiro

Dhipatimendi	Vashandi	Nyanzvi	Mabasa
R&D Injiniya	5 mainjiniya	DC arc fizikisi, magineti simulation, zvinhu zvekusangana, magetsi emagetsi	New DC breaker development, patent portfolio (35+ patents), HVDC innovation
Process Engineering	20 mainjiniya	Vacuum brazing, magineti musangano, ceramic kugadzirisa, otomatiki	Kugadziriswa kwekugadzira, kuvandudza goho (> 98%), Indasitiri 4.0 kubatanidzwa
Testing & Validation	15 mainjiniya	Yepamusoro-yazvino DC kuyedza, arc kupera ongororo, kuenzanisa kwezvakatipoteredza, EMC	Type yekuyedza kurongeka (IEC 60947-2), kuongororwa kwekutadza, chitupa
Injiniya yekushandisa	12 mainjiniya	Solar PV dhizaini, mabhatiri ekuchengetedza masisitimu, EV kuchaja, DC microgrids	Mutengi tsigiro yehunyanzvi, dhizaini yehurongwa, kusarudza kuronga
Hunhu Hwakanaka	30 technicians	ISO 9001, ISO 14001, statistical process control, metrology laboratory	Supplier audit, process audit, kugadzirisa zviito, calibration manejimendi

Nei Yedu DC Circuit Breaker Manufacturing Yakamira Yakaparadzana

Nzvimbo yedu yekugadzira inomiririra15 makore ehunyanzvi muDC kuchengetedzwa kwedunhu, kuendesa mabreaker anopfuura mwero wepasirese kuburikidza:

Arc hunyanzvi hwefizikisi: Proprietary magnetic blowout madhizaini ane optimized Lorentz simba geometry, kuwana <10ms arc kupera pa1500V DC

Vertical integration: In-house tungsten-silver yekubata brazing, NdFeB magineti musangano, uye ceramic arc chute kugadzira kuve nechokwadi chekutonga kwakazara kwemhando.

Testing infrastructure: $4M+ yakasimwa mune yakakwirira-yazvino DC marabhoritari inokwanisa 20,000A kukanganisa kukanganisa kuyedzwa, arc kutsakatika yakakwirira-kumhanya kufungidzira (100,000 fps), uye kuenzanisa kwezvakatipoteredza.

Renewable energy focus: Specialized dhizaini solar PV (1000V-1500V), bhatiri kuchengetedza (bidirectional dziviriro), uye EV kuchaja (yakakwirira inrush inomira)

Solid-state innovation+

Nezve tekinoroji yekumisikidza, solar PV kuchengetedza kurongeka, dhizaini yekuchengetedza bhatiri, kana kurongeka kwefekitori yekuongorora, timu yedu yeinjiniya inopa kubvunzana kwakananga kuti ive nechokwadi chekuti DC yako masisitimu emagetsi anosangana nezvinodiwa zvekuchengetedza uye zvinangwa zvekuvimbika kwekushanda.

CDADA ndeye DC 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