Miniature Circuit Breaker (MCB) Manufacturer
At VIOX Electric, we pride ourselves on being a leading manufacturer of Miniature Circuit Breakers (MCBs) with over 20 years of industry experience. Our commitment to excellence has established us as a trusted partner for electrical contractors, engineers, and distributors worldwide.
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VIOX Miniature Circuit Breakers (MCBs)
En kort selvutnevnelse: Hvorfor velge VIOX Electric?
At VIOX Electric, we pride ourselves on being a leading manufacturer of Miniature Circuit Breakers (MCBs) with over 20 years of industry experience. Our commitment to excellence has established us as a trusted partner for electrical contractors, engineers, and distributors worldwide.
- Bransjeledende kvalitet: Every MCB undergoes rigorous testing to ensure consistent performance and safety
- Innovativ design: Our R&D team continuously improves our products to meet evolving industry standards
- Omfattende støtte: From selection guidance to after-sales service, we’re with you at every step
- Global etterlevelse: All VIOX MCBs meet international safety standards, including IEC, UL, CE, and more
- Konkurransedyktig prising: Premium quality without the premium price tag
VIOX FULL RANGE MCB
Our extensive catalog ensures you’ll find the perfect solution for every application. The VIOX MCB range includes:
- VM1 Series: Compact and Reliable
- VM6 Series: Industrial-Grade Protection
- DC MCBs
- High Breaking Capacity MCBs
- RCBO (Residual Current Circuit Breakers with Overcurrent Protection)
- Miniature Earth Leakage Circuit Breakers
- TYPEA,B,C,D MCB
- DIN Rails for Mounting MCB
Custom-Made MCB for Your Specific Needs
At VIOX, our unique competitive advantage lies in our ability to customize MCB to suit your specific requirements. With our expertise in customizing solutions, you will experience an effective, seamless, and hassle-free process that ensures your exact needs are met precisely and enjoyably.
Få din Gratis prøve!
Vi tilbyr gratis prøver, du trenger bare å fortelle oss hva du trenger
EKSKLUSIVE RABATTER OG TJENESTER FOR SAMLESKINNEISOLATORER: SAMARBEID MED VIOX
VIOX ønsker å skape partnerskap med elektrikere, mekaniske entreprenører og fagfolk i bransjen ved å tilby eksepsjonelle rabatter og tjenester for våre samleskinneisolatorer.
★Priser direkte fra fabrikk - Som produsent av høykvalitets samleskinneisolatorer, sikrer kjøp direkte fra VIOX at du får de mest konkurransedyktige fabrikkprisene. Selv om kostnadseffektivitet er avgjørende, er det vår urokkelige forpliktelse til holdbarhet og pålitelighet som skiller våre produkter fra resten.
★ Prioritert service og gratis planlegging - Dra nytte av fordelene med vår prioriterte service, inkludert gratis planleggingshjelp for å effektivisere prosjektene dine. Vår effektive prosess gir deg informasjon som er klar til bruk, noe som sparer deg verdifull tid og hjelper deg med å maksimere kostnadseffektiviteten på bestillinger.
★ Eksklusiv markedsbeskyttelse - Vi ivaretar dine interesser ved å sikre at vi ikke samarbeider med konkurrentene dine om det samme prosjektet. Denne eksklusive markedsbeskyttelsen gir deg et konkurransefortrinn. I tillegg kan du kvalifisere for eksklusive rettigheter til å representere våre samleskinneisolatorer ved å oppfylle visse kriterier.
★ Gratis vareprøver for VIP-kunder - Som VIP-kunde kan du motta gratis vareprøver for å evaluere etterspørselen i markedet og produktkvaliteten, uten at du trenger å investere noe. Vår forpliktelse til å levere prøver av høy kvalitet garanterer en jevn bulkproduksjon og bidrar til å sikre nye ordrer.
★ Betydelige rabatter på massebestillinger - Store volumbestillinger gir høyere produktivitet og reduserte råvarekostnader. Vi gir disse besparelsene videre til deg gjennom betydelige rabatter på bulkkjøp, noe som gir deg et konkurransefortrinn.
Mer enn bare en RCCB-produsent
Hos VIOX går vi lenger enn å produsere jordfeilbrytere ved å tilby en rekke verdiøkende tjenester som er skreddersydd for å dekke dine prosjektbehov. Vår forpliktelse til å yte det ypperste sikrer at hver kunde får personlig oppmerksomhet, kyndig veiledning og sømløs støtte gjennom hele reisen med oss.
Tjenestekonsultasjon
Uansett om du har enkle eller komplekse krav til RCCB, tilbyr teamet vårt ekspertrådgivning og teknisk konsultasjon. For mer kompliserte prosjekter tilbyr vi grundig teknisk støtte for å sikre optimalt produktvalg og -anvendelse, noe som garanterer sikkerhet og effektivitet i de elektriske systemene dine.
Produktanbefalinger
Er du usikker på hvilken RCCB som passer til ditt system? Våre spesialister gir deg gratis, tilpassede anbefalinger basert på dine spesifikke drifts- og miljøkrav, slik at du får den perfekte løsningen for dine behov for elektrisk beskyttelse.
Logistikkstøtte
Hvis du ikke har en pålitelig speditør, kan vi ordne transport fra fabrikken vår til prosjektstedet ditt uten ekstra kostnad. Logistikkteamet vårt sørger for rettidig og sikker levering, slik at prosjektet ditt holder tidsplanen og minimerer nedetid og forsinkelser.
Støtte for installasjon
Trenger du hjelp med installasjonen? Vårt tekniske team er tilgjengelig for å svare på spørsmål eller gi praktisk støtte. For større prosjekter kan vi til og med sende en ingeniør til stedet for å hjelpe deg på stedet, slik at du kan være sikker på at RCCB-ene dine er riktig installert og fungerer sømløst i det elektriske nettverket ditt.
Ofte stilte spørsmål
Vi har samlet noen vanlige spørsmål fra kundene våre. Hvis spørsmålet ditt ikke er inkludert her, er vår kundeservice alltid tilgjengelig for å hjelpe deg. Vi vil gjerne snakke med deg.
Hvordan kan jeg få et tilbud på RCCB?
For å få et tilbud på vår RCCB, ta kontakt med vårt kundeserviceteam. Vi er tilgjengelige 24/7. Bare oppgi detaljene i bestillingen din, som type, størrelse og antall. Vi veileder deg gjennom hele bestillingsprosessen.
Hva er din MOQ for bestillingen?
Vi har en lav MOQ eller minimumsbestillingsmengde. Du kan bestille så lite som én enhet, og vi leverer i henhold til dine spesifikasjoner.
Hva er leveringstiden for bestillingen min?
Standard leveringstid for våre RCCB er 7 til 10 virkedager. Leveringstiden kan forlenges med opptil 15 virkedager på grunn av transport. For tilpassede bestillinger eller bulkbestillinger kan vi diskutere leveringstiden før du fullfører bestillingen.
Kan jeg få en prøve før jeg legger inn bestillingen?
Ja, vi tilbyr prøver for evaluering og godkjenning. Det tar vanligvis 3 til 7 virkedager å lage prøver.
Kan du lage tilpassede RCCB-er?
Ja, vi tilbyr kundetilpassede RCCB-er. Gi oss beskjed om dine krav, så vil vårt kompetente kundeserviceteam samarbeide med deg gjennom designprosessen.
Hva er din garanti for RCCB?
Vi tilbyr 3 års garanti på alle RCCB-er vi produserer. Dette sikrer at vi leverer produkter av høy kvalitet. Hvert produkt blir grundig testet før levering.
KUNNSKAP Om RCCB
What is an MCB?
A Miniature Circuit Breaker (MCB) is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation.
How Does an MCB Work?
MCBs operate through two distinct mechanisms:
- Termisk drift: A bimetallic strip that bends when heated by excessive current, triggering the breaker for overload protection (delayed action).
- Magnetisk drift: An electromagnetic solenoid that activates when current reaches dangerous levels, providing instant tripping for short-circuit protection.
When either mechanism activates, it releases a latch that opens the circuit, disconnecting the power supply.
Key Components of an MCB
- Betjeningsmekanisme: The handle and latching mechanism
- Kontaktpersoner: The conducting parts that connect and disconnect the circuit
- Arc Extinguishing Chamber: Quenches the arc formed during contact separation
- Termisk element: Bimetallic strip for overload protection
- Magnetisk element: Solenoid for short-circuit protection
- Terminaler: Connection points for incoming and outgoing cables
What is the difference between B, C, and D tripping curves?
B Curve: Trips at 3-5 times rated current, ideal for resistive loads like lighting and heating.
C Curve: Trips at 5-10 times rated current, suitable for slightly inductive loads like small motors and transformers. This is the most commonly used curve for general applications.
D Curve: Trips at 10-20 times rated current, designed for highly inductive loads with high inrush currents, such as large motors and transformers.
MCB Types and Ratings
MCB classifications are primarily based on their tripping characteristics, which determine how quickly they respond to different levels of overcurrent. The main types are:
Type B: Trips at 3-5 times rated current, used for resistive loads in residential settings like lighting circuits.
Type C: Trips at 5-10 times rated current, suitable for inductive loads in commercial and light industrial applications12.
Type D: Trips at 10-20 times rated current, designed for highly inductive loads with high inrush currents, such as large motors and transformers.
Type K: Trips at 8-12 times rated current, used for motor circuits with high inrush currents1.
Type Z: Trips at 2-3 times rated current, highly sensitive for protecting semiconductor devices and electronic circuits.
These classifications ensure appropriate protection for various electrical loads, from sensitive electronics to heavy industrial equipment. The choice of MCB type depends on the specific application and the expected current characteristics of the circuit.
How do I determine the correct MCB size for my application?
Calculate the maximum current draw of your circuit, then select an MCB with a rating slightly higher than this value. Consider factors like cable size, load type, and potential future expansion. For specific guidance, consult our selection guide or contact our technical team.
What is the difference between an MCB and an RCCB?
An MCB (Miniature Circuit Breaker) protects against overcurrent conditions like short circuits and overloads.
An RCCB (Residual Current Circuit Breaker) protects against earth leakage currents, offering protection against electric shock hazards.
For complete protection, both devices are often used together, or you can use an RCBO which combines both functions.
How often should MCBs be replaced?
MCBs typically have a mechanical lifetime of 10,000+ operations. Under normal conditions, they can last 15-20 years. However, we recommend inspection every 5 years and replacement if you notice:
- Discoloration or burning marks
- Difficulty in switching operation
- Hyppig plagsom tripping
- After a major short circuit event
Are VIOX MCBs compatible with other brands’ distribution boards?
Yes, all VIOX MCBs conform to standard DIN rail mounting specifications (35mm), making them compatible with most distribution boards on the market.
MCB Selection Factors
When choosing an MCB, consider:
- Gjeldende vurdering: The normal current the MCB can carry continuously
- Bruddkapasitet: Maximum fault current the MCB can safely interrupt
- Tripping Curve: Defines the time-current characteristic (B, C, D, etc.)
- Spenningsverdi: Maximum voltage the MCB can safely handle
- Antall stolper: Single pole for single-phase, three poles for three-phase, etc.
- Overholdelse av standarder: Ensuring the MCB meets relevant certification standards
Common MCB Installation and Safety Guidelines
Proper MCB installation is crucial for electrical safety:
- Always disconnect power before installing or replacing MCBs
- Ensure firm connections to avoid loose contacts that can cause heating
- Install MCBs in well-ventilated areas to prevent overheating
- Label circuits clearly for easy identification during emergencies
- Periodically test MCB operation by pressing the test button (if available)
- Never bypass an MCB or increase its rating to avoid tripping
Why Do MCBs Trip?
MCBs typically trip due to:
- Overloading: Too many devices connected to one circuit
- Kortslutning: Direct contact between live and neutral conductors
- Jordfeil: Current leaking to earth due to damaged insulation
- Device Failure: Faulty appliance drawing excessive current
- MCB Faults: Aging or mechanical issues with the MCB itself
How to Reset a Tripped MCB
After identifying and resolving the cause of tripping:
- Move the MCB switch to the fully “off” position
- Wait approximately 30 seconds
- Firmly switch it back to the “on” position
If the MCB immediately trips again, there’s still an unresolved fault that requires professional attention.
What is the difference between an MCB and a fuse?
While both protect against overcurrent, MCBs can be reset after tripping, whereas fuses must be replaced. MCBs also offer more precise trip characteristics and faster operation during short circuits.
How long do MCBs typically last?
With proper installation and normal operating conditions, MCBs typically last 15-20 years. However, they should be tested periodically and replaced if they show any signs of malfunction.
Can I replace a fuse with an MCB?
Yes, upgrading from fuses to MCBs is common in older installations. However, this often requires modifying the distribution board and should be performed by a qualified electrician.
What does the amperage rating on an MCB mean?
The amperage rating indicates the maximum continuous current the MCB can carry without tripping. For example, a 16A MCB will typically allow currents up to 16A to flow continuously but will trip if the current exceeds this value for an extended period.
MCB Application Areas
Miniature Circuit Breakers (MCBs) are versatile protective devices used across various sectors to safeguard electrical systems. Here are the key application areas for MCBs:
Bolig:
Protect household circuits for lighting, appliances, and general power outlets
Commonly use Type B MCBs for standard home electrical systems
Commercial:
Safeguard lighting systems, HVAC units, and office equipment
Type C MCBs are preferred for higher power requirements in commercial settings
Industrial:
Protect heavy machinery, motors, and industrial equipment
Type D MCBs are ideal for high starting current applications like conveyor belts
K Type MCBs used for compressors, winding motors, and X-ray equipment
Spesialiserte applikasjoner:
Type A and Z MCBs protect sensitive equipment in laboratories and medical facilities
Used in motor control centers and utility substations
Transport:
Applied in electrical systems of vehicles, ships, and trains
Yueqing: MCB Manufacturing Hub
Yueqing, in Zhejiang province, China, is known as the “Electric Device Metropolis of China” and a global leader in electrical equipment, particularly miniature circuit breakers (MCBs) and other low-voltage devices. VIOX ELECTRIC, a key manufacturer in the city, has bolstered this reputation by prioritizing innovation, securing certifications like ISO9001 and CE, and exporting extensively to international markets.
The city’s success is rooted in its strong industrial ecosystem, featuring specialized manufacturers and decades of expertise in refining production processes. VIOX ELECTRIC exemplifies this by delivering high-quality products to regions like Europe and North America, reinforcing Yueqing’s status as a global leader in the MCB market.
Be om et OEM RCCB-tilbud
VIOX Electric står klar til å hjelpe deg med dine OEM RCCB-behov. Vi tilbyr kostnadseffektive løsninger av høy kvalitet.
