DC MCB

Professional Miniature Circuit Breaker Manufacturer

LETOP DC MCB manufacturer with 15+ years of industry expertise, we produce high-performance DC miniature circuit breakers for solar photovoltaic systems and industrial DC applications. Our comprehensive DC MCB product line includes current ratings from 1A to 125A with voltage capabilities up to 1500V DC. Our DC MCB solutions can protect your solar system, handle industrial DC power distribution, and provide reliable overcurrent protection with superior arc extinction technology, compact design, and extended operational life for global OEM partners and distributors.
20+ years experience

20+ Years Experience

DC MCB manufacturer with 20+ years experience
Wholesale pricing

Wholesale Pricing

Wholesale pricing for bulk orders (MOQ: 100pcs)
OEM & ODM services

OEM/ODM Services

OEM/ODM services available for private labeling
Fast delivery

Fast Delivery

7-15 days for standard delivery time

DC MCB Technical Specifications

LETOP specialize in high-performance DC MCB that are specifically designed for photovoltaic applications. Our DC miniature circuit breakers provide reliable overcurrent protection for solar combiner boxes, ensuring safe and efficient operation of residential and commercial solar installations. 

Professional DC MCB Manufacturing Capabilities

Our manufacturing processes have been honed by our 20+ years of experience. Our 22,000 sqm facility has over 16 production lines, so we can quickly adapt to changes. We always test 100% of our products and full-process quality monitoring. Partnering with LETOP means working with the best and the brightest.

Fully-automatic-production-line

16+ production lines to DC MCB

Printing & Packaging

Monthly capacity: 100,000+ pieces

Endurance & Breaking Capacity Testing

100% testing for every DC MCB unit

product certificates

CE, CB, TUV for global markets

Component Inspection&Quality Checks

Custom DC MCB based on your needs

warehouse checking

Private labeling for your brand

warehouse shipping

Custom packaging for your company

product design

Customize specific parameters

DC MCB Applications for B2B Markets

LETOP DC MCBs are perfect for meeting the unique needs of B2B solar energy applications. With over 20 years of experience in manufacturing and strict quality control processes, we offer high-quality circuit protection solutions for direct current systems. Our dedication to customizing and developing high-quality products ensures that our DC MCBs seamlessly integrate into your projects and product lines.

Commercial & Industrial Solar Case Study

For OEM Manufacturers

Integrate our DC mini circuit breaker into your solar combiner boxes and electrical panels. OEM partnerships available.
Residential Solar Case Study

For Electrical Distributors

Stock our DC MCB products to meet the growing solar market demand. Our competitive wholesale pricing ensures high profit margins.
Off-Grid & Microgrid Solar Case Study

For Wholesale Traders

Export our DC MCB circuit breaker products to your target markets with competitive wholesale pricing
Utility Scale Solar Case Study

For Solar System Integrators

Use our solar DC MCB in combiner boxes and DC disconnect applications. Complete technical support included.

FAQ

Here you can find some of your common questions related to DC MCB, which can help answer your doubts.

What's your minimum order quantity for DC MCB?
Our standard MOQ is 100 pieces per model for wholesale customers.
Do you offer OEM services for DC MCB?
Yes, we provide complete OEM/ODM services including custom specifications and private labeling.
Can you provide DC MCB samples for evaluation?
Yes, we provide free samples for qualified B2B customers to evaluate quality and compatibility.
How long is your DC MCB production lead time?
Standard models: 7-15 days, Custom/OEM models: 15-25 days from order confirmation.
Do you support international shipping for DC MCB orders?
Yes, we ship worldwide with FOB Shanghai terms and can arrange CIF delivery.
What's your DC MCB wholesale pricing structure?
We offer volume discounts starting from 1000 pieces with up to 10% savings for large orders.
What's your MCB testing procedure before shipment?
Every MCB undergoes electrical testing, mechanical operation testing, insulation resistance testing, and visual inspection before packaging.
What's your MCB warranty period and coverage?
We provide 18-month warranty covering manufacturing defects and electrical performance under normal operating condition.
What after-sales services and support do you provide?

We provide comprehensive after-sales services, including product consulting, technical support and warranty services. Our professional team is ready to help solve your problems.

What technical support do you provide to DC MCB distributors?
We offer product training, technical documentation, marketing materials, and ongoing technical support.

If no relevant issues are found, please contact us, E-mail:[email protected].

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Get in Touch with Us

If you have any questions, please contact us and we will reply within 24 hours.

Get in Touch

Wenzhou LETOP Electric Co., Ltd.

Address

No. 19, Fenjin Road, Dongfeng Industrial Zone, Yueqing, Wenzhou, China 325604

+86-13175631986

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