Reliable & Easy-to-Integrate Combiner Boxes

Build high-performance, safe solar PV systems efficiently with LETOP’s expertly designed combiner boxes.

Your Partner for Efficient and Reliable Solar System Integration

As a system integrator or installer, your reputation depends on the quality, safety, and efficiency of your work. Choosing the right components is crucial for smooth project execution and long-term system performance that satisfies your clients.
LETOP understands the challenges you face on site. We provide solar combiner boxes engineered for ease of installation, robust performance, and uncompromising safety. Our solutions feature high-quality, certified components (IEC/EN 61439), installer-friendly designs, and are backed by our 20+ years of manufacturing expertise.
Trust LETOP to help you deliver reliable solar PV systems – from residential rooftops to complex commercial and industrial projects – on time and with confidence.

How LETOP Supports Integrators & Installers

Reducing Installation Time & Complexity

Reducing Installation Time & Complexity

Minimizing time spent wiring, mounting, and commissioning components on site to meet tight project deadlines.

Ensuring System Compatibility & Integration

Ensuring System Compatibility & Integration

Guaranteeing combiner boxes work seamlessly with various string configurations, inverter types, and monitoring systems.

Maintaining High Safety Standards

Maintaining High Safety Standards

Protecting installation crews and ensuring the final system meets all electrical safety codes and requirements, like insulation protection, disconnect isolation, and overcurrent protection.

Minimizing Callbacks & Troubleshooting

Minimizing Callbacks & Troubleshooting

Installing reliable components that reduce the chance of post-installation issues, saving time and protecting profit margins.

Working in Diverse Environmental Conditions

Working in Diverse Environmental Conditions

Needing robust enclosures (IP65) and components that withstand weather, dust, and temperature extremes found on job sites.

Accessing Clear Technical Information & Support

Accessing Clear Technical Information & Support

Requiring readily available datasheets, installation manuals, and responsive technical support when questions arise during installation or design.

We understand that every solar project is unique. Find the perfect LETOP combiner box solution organized by what matters most to you.

LETOP Combiner Boxes Designed for the Installer

As an exclusive partner of engineering installers and electrical wholesalers, LETOP takes modular design + flexible supply chain as the core to help you quickly respond to end-customer needs and seize the opportunities in the residential and industrial and commercial photovoltaic markets.

Installer-Friendly Design

Features like ample wiring space, clearly labelled terminals, logical layouts, and convenient mounting options (wall-mount, pole-mount ready)

Integrated Safety Components

Inclusion of high-quality DC fuses/breakers for overcurrent protection and optional DC isolator switches for safe system maintenance, meeting critical safety standards.

Durable, Weatherproof Enclosures

IP65-rated Polycarbonate or GRP enclosures protect internal components from dust, water ingress, and UV exposure, ensuring long-term reliability in various site conditions.

Reliable Connection Options

Standardized MC4 connectors for fast and secure string inputs (common on residential/small C&I) or robust IP68 cable glands for direct cable entry (Preferred in larger systems).

Pre-Wired & Tested Options

Availability of pre-configured and fully tested units reduces on-site wiring time and potential errors.

Rigorous Quality Control

Every LETOP combiner box undergoes 100% functional testing before shipment, minimizing the risk of on-site failures or DOA components.

Popular Combiner Boxes for Efficient Installation

As an exclusive partner of engineering installers and electrical wholesalers, LETOP takes modular design + flexible supply chain as the core to help you quickly respond to end-customer needs and seize the opportunities in the residential and industrial and commercial photovoltaic markets.

Specify LETOP for Your Next Solar Project

Get the reliable, easy-to-install combiner boxes you need for efficient and safe solar installations. Request detailed specifications or a project quote today.

FAQ

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

What information is required to give me an accurate quote?

In order to provide an accurate quote, we need to know your desired product model, quantity, customization options (e.g. branding, printing, packaging, etc.), and any specific technical requirements.

Can you provide product samples for testing?

We are happy to provide FREE samples. You only need to provide the courier account number or pay the shipping cost to get FREE samples for testing. Please contact our sales team for more details.

What is the MOQ (minimum order quantity) for an order?

Our MOQ is according to the product and customized service. Please check services. You can also consult our expert team.

Can I get a discount on bulk orders?

Yes, we offer discounts for high volume orders. The discount rate depends on the size of the order and the complexity of the customized service. Please consult our team of experts for specific information.

What is the delivery time?

Our standard delivery time is 7-10 days based on 200 pieces. Specific delivery time will vary according to your order size, degree of customization and our production plan. We will provide an estimated delivery time when quoting.

Do you offer custom packaging services?

Yes, we offer custom packaging services including brand printing, custom packaging and design to meet your specific needs. For more details, please visit Services. Or contact our technical team to discuss your needs.

If I need special product configurations or features, can you provide custom development?

We offer custom development services to meet your specific needs. Please see services for more details. Please contact our technical team to discuss your requirements.

What payment methods do you offer?

T/T payment terms. We can also provide local collection accounts. Please consult our service team for details.

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.

If no relevant issues are found, please contact us, E-mail:info@letopv.com.

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

info@letopv.com

+86-13175631986

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