Custom Low Heat Z-Curve MCB for a Swedish EV Charging Station Manufacturer
A Swedish EV charging manufacturer faced a challenging MCB application where continuous 63A loads had...
Circuit Breakers Built Around Your Application.
CUSTOM ELECTRICAL SUPPLY · YUEQING, CHINACustom MCB, OEM and SKD/CKD solutions for equipment manufacturers, electrical brands and local assemblers.
From special trip curves and rated currents to private-label production and component supply — coordinated through certified manufacturing partners in Yueqing.
Built forEV Charger ManufacturersSolar & BESS IntegratorsElectrical BrandsLocal AssemblersAutomation Equipment Builders
Case Studies
Take a look at some of the projects we have worked on for customers in different markets and applications, and see how we handle different product and project requirements.
Choose the supply model that fits your business.
Licen is designed for projects that need more flexibility than a standard catalog order.
What are you looking for?Custom Breakers
For equipment manufacturers whose electrical or mechanical requirements fall outside standard catalog configurations entirely.
- Special trip curves
- Special rated currents
- Short-circuit-only protection
- DC applications
- Auxiliary / alarm contacts
SKD / CKD Supply
For electrical brands and distributors that need compliant products under their own brand, packaging and product configuration.
- Plastic housings
- Bimetal strips
- Assembly Video Tutorials
- Test equipment
- Test fixtures
Private Label / OEM
For local manufacturers transitioning from finished-product imports to local assembly, with component supply and assembly support.
- Logo & Design help
- Custom packaging
- Housing color options
- Product labeling
- Private model development
Does your project sound like this?
YOUR REQUIREMENT MAY NOT FIT A CATALOGThese are the kinds of requests where flexibility matters more than choosing the cheapest standard SKU.
- Need a Z, K or other special trip curve?
- Need an unusual rated current or protection configuration?
- Need a breaker without overload protection?
- Need breaker components instead of finished breakers?
- Need your own branding, packaging or housing color?
Built for MCB projects that standard catalogs don't solve.
Why Licen?Licen focuses on MCB projects where standard products are not quite enough — from special trip curves and electrical parameters to OEM configurations and flexible production requirements.
Customization Beyond the Catalog
Special trip curves, rated currents, configurations or application requirements — we work from your specifications to develop a practical MCB solution.
Compliance You Can Verify
CB, CE, RoHS and SAA documentation is available for applicable products, supported by ISO 9001, ISO 14001 and ISO 45001 certified manufacturing systems.
Flexible Production Options
From finished MCBs and private-label products to SKD and CKD supply, production can be adapted to different markets, assembly models and project requirements.
A Better Fit for Mid-Volume Projects
Ideal for projects that need real customization and meaningful production volume, without the high development barriers or rigid requirements associated with large factories.
Inside Our Manufacturing Facility
A closer look at the production environment, equipment and daily operations behind Licen’s electrical component manufacturing.
Documentation shouldn't be an afterthought.
For overseas buyers, product consistency and verifiable documentation are part of the product itself. Licen works as your certified manufacturing partners and can provide applicable certification and test documentation for review before ordering.
CBCertification
CECertification
RoHSCertification
SAAAustralia
Target-market suitability depends on the specific product and application. Confirm documentation requirements with us before production.
MANUFACTURING SYSTEMVERIFIABLE
ISO 9001Quality Management
ISO 14001Environmental Management
ISO 45001Occupational Health & Safety
AVAILABLE ON REQUEST
- Certification documents
- Product datasheets
- Applicable test reports
- OEM specification confirmation
From requirement to production.
Keep the first conversation technical and practical. A datasheet is often enough to start.
Send Requirements
Drawing, datasheet, sample, target parameter or application information.
Engineering Review
Feasibility, product configuration, certification, MOQ and production route.
Sample & Validation
Sample preparation and specification confirmation before volume production.
Production & Delivery
Finished product, OEM / ODM, or SKD / CKD supply based on the project.
What Our Customers Say?
To be honest, it was really tough finding a Z-type circuit breaker. We looked everywhere but couldn't find the right match. Luckily, LICEN had exactly what we needed. After testing their samples, we are confident that they fully meet our project requirements. And compared to ABB, their price is simply a steal! They really saved the day for us.
Our projects need custom breakers, not standard items. The LICEN team was incredibly patient with us throughout the whole process. They made multiple samples for us to test, round after round. In the end, they also provided a detailed parameter datasheet, which gave us a very solid reference document for our internal records. The service was truly professional.
Blog
Explore our latest insights, industry trends, and practical knowledge.
How to Calibrate Circuit Breakers’ Thermal Elements in Production?
Thermal calibration is a relatively small step in circuit breaker production, but it can have a direct impact on final performance. A closer look at this process helps buyers better understand what happens behind production testing.
September 7, 2026Read More →
How to Verify Different MCB Trip Curves in Production?
For MCB manufacturers and assembly teams, verifying trip curves is a practical production concern. Small differences in components or testing can affect consistency, quality, and confidence in finished breakers.
September 5, 2026Read More →7 Common MCB Quality Problems Buyers Should Know
I spend most time dealing with customers — sending out samples, answering questions, and helping buyers work through problems that come up during the purchasing process. After enough years working in Yueqing's electrical component cluster, you start to notice the same handful of problems coming up again and again, no matter which factory made the…
September 1, 2026Read More →
Can I Trust the Quality of MCBs Made in China?
A Chinese-made MCB can raise questions that are difficult to answer from a quotation or product photo alone. For B2B buyers, understanding those uncertainties is part of managing sourcing risk.
August 30, 2026Read More →When Is Overload Protection Not Needed in a Circuit Breaker?
Not every circuit needs the same protection profile. Knowing when overload protection can be left out helps you specify more efficiently, avoid unnecessary heat in enclosures, and ask better questions when evaluating breaker options for your projects.
August 29, 2026Read More →What If a Chinese Supplier Does Not Have UL Certification?
Finding a UL-certified supplier in Yueqing is not easy. But knowing what to look for—and what to ask—makes the search far less risky than it seems.
August 28, 2026Read More →
FAQs
Starting a new project comes with a lot of questions. Here are a few we hear most often — and if yours isn't listed, just reach out. We're happy to talk.
What products do you offer? Do you only do circuit breakers?
We currently focus on miniature circuit breakers as our core product, and we’re steadily expanding our range. If you have specific needs not listed in our standard catalog, feel free to reach out — we’re happy to help you find or recommend the right solution.
What's your MOQ? Can I order a few samples first?
Yes, we support small-batch sample orders for testing. As a new brand, we keep our MOQ flexible and don’t set high barriers for new customers. Some samples may even be offered free of charge — please contact us for details. We also support mixed-item orders for one-stop sourcing.
Are you a factory or a trading company?
We’re an integrated electrical components supplier — we have our own factory and a dedicated trading service team. But honestly, we don’t get too caught up in the “factory vs. trading company” label.
What really matters to us is whether we can offer our customers reliable products, fair pricing, and consistent service. Many clients choose us precisely because we communicate better than a typical factory and understand quality better than a typical trading company.
What if a product has issues? Do you provide after-sales support?
Yes, we offer standard after-sales support. If any problem arises, simply provide photos, videos, and label information, and we’ll help diagnose the issue and propose a solution as soon as possible.
We offer a 1-year warranty. During the warranty period, if the issue is confirmed to be a product defect — rather than improper installation, external damage, or operation beyond rated parameters — we’ll replace or repair it at no cost, including the shipping both ways.
Even after the warranty expires, we provide lifetime technical support. You can always reach out to us with any questions, big or small, and we’ll help analyze the cause and offer advice. We don’t want problems to happen — but if they do, we won’t run from them. Solving the issue matters more than assigning blame.
To us, a deal isn’t the end of the road — it’s where the relationship begins.
How can I be sure the mass order matches the samples?
We conduct 100% full inspections on every batch before shipment. We can also provide pre-shipment photos, label details, and packaging confirmation upon request — so you see exactly what you’re getting before we ship.
What's your typical lead time?
It depends on our production schedule at the time — typically, lead times range from 7 to 15 working days, depending on order volume and specifications. We don’t keep large stockpiles, so we always confirm the exact delivery date with you before you place your order, based on real-time production availability.
What certifications do you have?
We hold ISO9001, ISO14001, and ISO45001 for our factory management systems. For our products, we have CB, CE, RoHS, and SAA certifications. If you need specific certification documents — or have requirements for a particular target market — just let us know. We’re happy to provide what we have or evaluate new ones as needed.
Can you help me check model numbers and confirm parameter compatibility?
Absolutely. Just send us your full model number, application scenario, and voltage/current requirements — we’ll help verify compatibility and, if needed, recommend alternative options that may better suit your needs.
What are your payment terms?
For small orders, we usually ask for full payment upfront. For larger ones, it’s 30% deposit by T/T and 70% balance before shipment.
Either way, we’ll send you photos or videos of the actual products and packaging before you release the balance, so you know exactly what’s ready to go.
If T/T isn’t convenient, just tell us — we can always discuss what works.
Have a circuit breaker requirement others won't take?
START A PROJECTSend us your specification. We'll review the requirement and tell you what production route may be practical.
