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Your Full-Scenario Weatherproof Electrical Enclosures

Solution Provider

Crafting Excellence: Custom Enclosure for Every Need

BSUMWELL: 19-Year Expert in Weatherproof Electrical Enclosures

With 19 years of experience in weatherproof electrical enclosure manufacturers, Bsumwell specializes in crafting weatherproof junction boxes across three core materials—plastic, stainless steel, and aluminum—tailored to address outdoor, industrial, household, and high-corrosion scenario needs. Our expertise lies in balancing material-specific advantages (e.g., plastic’s cost-effectiveness, stainless steel’s corrosion resistance, aluminum’s strength-to-weight ratio) with reliable weatherproof performance, ensuring consistent safety for diverse electrical systems.


We offer a full range of weatherproof junction boxes, covering multi-material options to meet targeted demands:

All our junction boxes feature industry-leading protection: IP65-IP68 ratings (from dust/splash resistance to long-term submersion), meeting IEC60439 standards and CE/ROHS certifications. Material-specific benefits include:

Plastic: Lightweight (50% lighter than metal), low cost, temperature tolerance (-20℃ to +80℃), ideal for general and household use.

Stainless Steel: 316L grade resists salt spray for 5000+ hours, perfect for harsh corrosive environments.

Aluminum: Balanced strength and weight, powder-coating ensures 10+ years of anti-rust performance.

User-centric designs are consistent across series: pre-reserved mounting holes, built-in DIN rails/M4 copper nuts (for component fixing), transparent/opaque lid options, and versatile installation (wall/pole/surface mounting).

We support full customization (hole drilling, size, color/logo, accessory matching) with a low MOQ and regular stock for fast delivery. Backed by a 2-year warranty (3 years for stainless steel) and 7×24 technical support, we deliver tailored, reliable electrical protection for households, commerce, and heavy industry.

Service features

At BSUMWELL, our service philosophy is simple: "Factory-direct reliability, customer-centric flexibility"—backed by 19 years of manufacturing expertise, we turn your needs into seamless solutions.

WE HAVE OUR OWN FACTORY OEM/ODM

OEM/ODM Capabilities,Hassle-Free Sample Service

Customize every detail: From IP50-IP68 to material choices.

Free standard samples are available for some products.

Custom samples: Available with refundable fees (credited to your first bulk order).

Factory-Direct Supply: Cut Costs, Speed Delivery

No middlemen: Get factory pricing—save 10-20% vs. distributors.

Full production control: In-house mold workshops and testing labs ensure quality (e.g., 1,000-hour salt spray tests for stainless steel).

Flexible MOQs: Start with 10 units for small projects, scale to 10,000+ for bulk needs.

Comprehensive After-Sales Support

2-year warranty: Covers material defects (e.g., stainless steel corrosion, PC UV damage).

Technical guidance: 7×24 engineer support for installation (wall/pole mounting tips) or IP rating maintenance.

Reorder ease: Saved specs for repeat orders—skip re-approval, ship in 5 days.

big lockable box cover with small lock for outlet box

Lockable Junction Box Electrical

The core advantages of this lockable junction box focus on "full-scenario protection + safety & convenience + customized adaptation": In terms of protection, it features an IP66 rating to resist dust, high-pressure water, and corrosion. Combined with a wide temperature range of -30℃ to +120℃ and UL94-V0 flame-retardant material, it is suitable for harsh environments; in terms of safety, it adopts dual protection of a tamper-proof lock and an external protection circuit to prevent unauthorized operations; installation and maintenance are convenient—pre-molded drill points and a detachable PCB board simplify construction, and the transparent model allows internal status inspection without opening the box; meanwhile, it supports OEM customization compliant with the IEC 60439-1 standard, enabling adjustments to dimensions and cutouts to fit different electrical components. Additionally, the grey model offers impact resistance and the transparent model provides UV resistance, further enhancing durability.


This product is widely used in key scenarios across multiple fields: In the energy sector, it serves as junction boxes for solar panels and power distribution enclosures for wind turbines, protecting photovoltaic and wind power components; in the security and IoT sectors, the transparent model is used as housings for CCTV cameras and protection boxes for IoT devices, balancing inspection convenience and protection; in industrial scenarios, the grey model is suitable for factory automation control cabinets and marine equipment enclosures, withstanding mechanical impact and corrosion; in public infrastructure, it is applied to telecom tower equipment protection and public power distribution boxes, and its tamper-proof design ensures public safety; in civilian scenarios, it meets the needs of outdoor charging protection for homes and outdoor socket locking, and small-sized models can also be adapted for indoor monitoring power control, realizing safe storage of electrical components across all scenarios.

Plastic Waterproof Distribution Box IP67 High-Temp Resistant Lockable Household/Outdoor
Waterproof plastic junction box with lock
Eliminate maintenance blind spots while securing your core components. The BSUMWELL IP66 400×300×170mm Weatherproof Electrical Enclosure is a heavy-duty asset protection solution engineered for demanding solar, marine, and security environments.

Unlike standard opaque metal boxes that rust and require labor-intensive manual opening for checks, this premium enclosure features an ultra-clear, high-tenacity polycarbonate cover providing full 360° visual monitoring of internal digital displays and relays. Security is paramount; it integrates a built-in mechanical lock to prevent unauthorized tampering or accidental shock exposure. Inside, a specialized insulated grid mounting plate (370×270×5mm) offers flexible, drill-free component configuration and superior electrical isolation. Constructed from premium, non-recycled grey-white engineered thermoplastic, the box achieves an exceptional strength-to-weight ratio (2.48kg net weight) and an IK08/IK10 impact rating. It seals tightly against high-pressure water jets and salt spray, guaranteeing your electronics remain dry, cool, and operational throughout intense environmental stress cycles.
 
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IP66 grey waterproof electrical box
400*300*160 Precision-Engineered Protection for Uncompromising Environments. 
While standard enclosures often fail under the mechanical stress of offshore vibration or high-salinity exposure, the BSUMWELL IP66 Industrial Series is built for extreme lifecycle longevity.

Unlike generic recycled-plastic alternatives, this enclosure utilizes high-density, UV-stabilized modified engineering plastics to achieve superior impact resistance (IK08/IK10) without the brittleness common in low-cost models. The critical differentiator lies in our integrated 304 stainless steel latch system and reinforced compression gasket. This combination ensures a vacuum-tight seal that prevents capillary water ingress even during high-pressure washdowns or heavy sea spray.

Designed specifically for Marine, Offshore, and Heavy Industrial control systems, this box eliminates the risk of internal component oxidation, reducing your long-term maintenance overhead. Whether you are an OEM integrator or a site engineer, the BSUMWELL enclosure provides a "fit-and-forget" solution that bridges the gap between cost-effectiveness and high-spec industrial reliability.
 
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[outdoor electrical box with lock]
300*200*160. Engineered for mission-critical outdoor infrastructure, the BSUMWELL IP66 Transparent Enclosure provides more than just standard weatherproofing; it is a strategic solution for proactive equipment monitoring and operational loss prevention. Unlike traditional opaque boxes, our high-clarity, UV-stabilized Polycarbonate (PC) cover allows technical teams to conduct instant visual status audits of internal meters, breakers, or CCTV signals without breaking the hermetic seal—eliminating the risk of internal condensation or dust ingress during routine inspections.

Constructed from a reinforced PC/ABS alloy, the housing is optimized for high-impact durability (IK08/IK10) and thermal stability. The unique internal honeycomb grid mounting plate offers unparalleled flexibility for rapid component layout without the structural integrity risks of manual drilling. By securing your high-value electronics within this lockable, anti-corrosive shield, you significantly reduce the "Mean Time To Repair" (MTTR) and prevent costly downtime caused by environmental degradation or unauthorized tampering.
 
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Lockable Sealed IP66 Enclosure
The BSUMWELL Vision-Series IP66 Enclosure is engineered for environments where operational visibility and asset security are non-negotiable. Featuring a high-clarity, impact-resistant transparent cover, this distribution box allows technical teams to perform routine status checks and meter readings without compromising the internal hermetic seal. Unlike standard opaque boxes, the Vision-Series eliminates unnecessary exposure to external contaminants during inspection.

Designed specifically for public infrastructure and high-traffic industrial zones, the unit integrates a heavy-duty locking mechanism and tamper-proof seal points. This dual-layer security prevents unauthorized access and vandalism, while the UV-stabilized polycarbonate construction ensures the transparent window remains crystal clear and yellowing-resistant, even under intense solar exposure. It is the ultimate "secure-yet-visible" solution for critical electronic controls.
 
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IP67 Waterproof Junction Boxes Electrical AG-Type New ABS Power Control Boxes Drill-Support
AG-type waterproof junction boxes electrical, made of new ABS. IP67 waterproof, dustproof, anti-corrosion. Supports drilling, ideal for indoor monitoring power control and outdoor use. Durable, easy to install.
 
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high-temp resistant electrical box
This lockable waterproof electrical box, a top outdoor waterproof solution, features IP67 rating, high-temp resistance, and stainless steel buckle. With free combo lock, 2 colors, detachable PCB panel,and factory direct sales, it's ideal for rainy charging and household use.
 
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Plastic Junction Box

All plastic junction box series under BSUMWELL are mainly made of new ABS, PVC, or ABS+PC (with high toughness, impact resistance, and high-temperature resistance), featuring protection grades ranging from IP65 to IP67, which can resist outdoor rain, dust, and industrial humid/corrosive environments.

Their structural designs focus on different priorities: the PS-WT series is centered on "ear-equipped" small to medium-sized boxes (with integrally molded ears on both sides for quick installation without additional brackets), targeting outdoor small devices (surveillance cameras, garden lights) and light-duty household needs; the PS-GT/PS-NT series are heavy-duty large-sized boxes (suitable for complex wiring and underground installation, with some models supporting short-term submersion in 1m deep water), focusing on heavy-duty industrial scenarios (factory power distribution, trailer circuits, landscape underground cables) — their large size and reinforced structure can withstand impacts and soil erosion; the PS-KG/PS-KT series are medium-sized universal models (with snap/hinge opening for easy installation), applicable to small to medium-sized universal scenarios (outdoor lighting, small equipment wiring) and balancing protection and cost. All series support customization of holes, colors/logos, and sizes, with a low procurement threshold and regular stock to ensure fast delivery.

10006
IP65 Waterproof Junction Box Outdoor ABS Plastic Electrical Enclosure CCTV Monitoring Power Cable Project Case 85x85x50mm
High-Impact ABS Engineering Plastic Architecture
Engineered as a robust micro-environment shield for sensitive electrical setups, this outdoor project enclosure is molded from premium ABS engineering plastic raw material. The structural shell provides excellent mechanical strength, ensuring it is highly durable, rust-proof, corrosion-resistant, and not easily deformed under physical strain or long-term field deployment. This specialized material density blocks fine atmospheric grit and moisture, protecting internal components from structural degradation.
 
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PS-RA 85G Round Plastic Enclosure
Body material:ABS or PC Certificates:CE,ROHS Protection grade:IP65 Size: 80×50mm
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aluminum cases

Solar Pv Combiner Distribution Box

The Solar Pv Combiner Distribution Box Series is optimized for photovoltaic systems, including solar combiner boxes and distribution boxes, covering IP65-IP66 protection ratings and suitable for 600V-1000V DC environments. Made of ABS housing + PC cover or 304 stainless steel, it integrates national standard surge protectors, circuit breakers, and plug-in fuses, supporting 1-36 input/output circuits to meet the power combiner needs of residential and commercial solar arrays. Sizes range from compact to large industrial-grade based on circuit configurations, with a grounding design and support for customized assembly, suitable for rooftop and ground-mounted photovoltaic power stations.


Core Value: It integrates multi-layer protection: national standard 40kA surge protectors, 63A DC circuit breakers, and customizable 10×38mm pull-out fuses (default 15A) to prevent short circuits and overvoltage damage. Photovoltaic-specific circuit design (surge and overload protection), IP65-IP68 outdoor protection, efficient power combining to improve generation efficiency, compatibility with multiple specifications of photovoltaic modules, providing a safe and stable power distribution solution for solar energy systems.

Solar PV Combiner Box Lightning Protection & Multi-Circuit Residential & Commercial Systems
PS-MS 24WAYS Surface Distribution Box
Body material:ABS Transparent door:PC Earth/Natural bars: Brass Certificates:CE,ROHS Protection grade:IP50
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PS-HT-12 12way Plastic Waterproof Distribution Box
Bsumwell HT 5/8/12/15/18Ways Outdoor IP65 Waterproof Electrical Distribution Box Circuit Breaker MCB Power Plastic Junction Wire Box
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Outdoor Panel Mount Waterproof IP65 ABS Plastic Electric Enclosure HT-8 Way Switch Junction Box
4-Way Waterproof ABS Plastic Power Distribution Junction Box IP66 & IP65 with 63A Circuit Breaker for AC Voltage
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small electrical cabinet
IP65 Waterproof Electrical Enclosure. This compact 3-way DIN rail mount box made of ABS+PC is designed for reliable outdoor and indoor power distribution. Features CE certification, 2-year warranty, and supports OEM customization.
 
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waterproof electrical box
IP67 Waterproof Plastic Circuit Breaker Enclosure. This grey PC electrical box is designed for outdoor and industrial low-voltage power distribution systems, offering reliable protection against dust and water ingress.
 
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IP66 3 Phase Power Distribution Box - 230/400V 80A UV-Resistant PC+ABS Outdoor Electrical Panel SAA CE ROHS Certified
IP66 3 Phase Power Distribution Box: 230/400V 80A, 70%PC+30%ABS with UV protection, SAA/CE/ROHS certified. 4-36 way, -35℃~70℃, 24-month warranty, OEM/ODM supported, 100% positive reviews.
 
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Take Your Enclosure from Plain to Powerful

Our factory-direct sales model ensures competitive pricing, providing you with high-quality, customized solutions without breaking the bank:

7-Day Customization: Fit Your Exact Needs

Get IP50-IP68 rated enclosures in 7 days (vs. 15+ industry avg) for urgent needs.

Custom sizes (50×50×30mm to 1000×800×500mm), materials (316L stainless steel, UV-stable PC), and add-ons (DIN rails, CNC-cut entries).

Brand with laser etching or custom colors—no minimum order.

Sustainable by Design: Protect Systems & Planet

Our enclosures balance durability and eco-consciousness:

Use 70% recyclable, high-quality materials (GRS-certified PC, corrosion-resistant stainless steel) with 10+ year lifespans.

Plastic-free packaging and a recycling program for old enclosures—support green energy and smart city projects

Worry-Free Support: We Stand By You

Beyond delivery, we ensure success:

Free pre-sale help: Choose IP ratings/materials (e.g., FRP for chemicals, PC for sensors).

2-year warranty + 7×24 support for installation (wall/pole mount) or maintenance.

Bulk discounts and dedicated managers for repeat orders.

plastic casing
electrical power distribution box mcb box
solar combiner box
Step-by-Step Installation Guide
Demonstration of product installation
Accessory and Application scenarios

Custom Waterproof Enclosures

Startup Enablement - InnoTech Robotics, Singapore

For InnoTech Robotics, a startup with big dreams, finding a supplier for less than 1,000 units seemed like an impossible task—until they came to us. With our zero MOQ, 500 laser-etched housings, and no tooling fees, we made their launch a reality. They not only achieved 183% of their crowdfunding goal but also secured $80,000 in Seed funding. If you're a startup with innovative ideas, our waterproof enclosures are the gateway to turning your vision into a successful product.

Coastal Infrastructure Solution - UrbanBuild Engineering, Australia

Coastal environments can be brutal, as UrbanBuild Engineering discovered with their coastal sockets suffering 35% annual corrosion. But our 52,000 IP66 surge-protected sockets were up for the challenge. Having passed a grueling 1,000-hr salt spray test, these sockets have stood the test of time, with zero failures over 3 years. They've even withstood Category 4 cyclones, saving UrbanBuild $42,000 per year in maintenance costs. If you're building in harsh coastal conditions, our waterproof enclosures are the reliable shield your infrastructure needs.

FAQ

What waterproof ratings and materials do your enclosures offer?

We offer a full spectrum of ratings from IP30 (basic dust protection) to IP68 (1m submersion for 30 minutes). This covers everything from indoor use to extreme outdoor/underwater environments.

Our materials include stainless steel (304/316L) for high corrosion resistance in marine and heavy industrial use; aluminum that’s lightweight with EMI/RFI shielding for electronics; polycarbonate (PC) and ABS+PC which are impact-resistant, UV-stable, and signal-penetrable for outdoor wireless devices; and fiberglass reinforced plastic (FRP), a chemical-resistant, non-conductive option for harsh environments like agriculture or explosive zones. Whatever your project demands, we have the right combination of protection and material strength.

How can I ensure proper installation, and what maintenance does the enclosure require?

What kind of warranty and sustainability efforts can I expect from your products?

Do you offer enclosures suitable for hazardous environments, security systems, or extreme temperatures?

What customization options and delivery services do you offer?

Contact Us for Waterproof Enclosures & Explosion-Proof Solutions




CONTACT US

With three core advantages: protection performance, customization efficiency, and service assurance, we are the trusted partner for global industrial manufacturers, ensuring outdoor electrical systems perform reliably in harsh environments like heavy rain, dust, and salt mist.

Mobile/Wechat/WhatsApp:

E-mail

vic@bsumwell.com, lucy@bsumwell.com, vivi@bsumwell.com

Address

A430, Gaosheng Building, 18 Center Road, Xinqiao Street, Baoan, Shenzhen


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Based on selection. e.g., +86 18927440949, lucy@bsumwell.com

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