BWX Stainless Steel Grid-Connected Box
The BWX stainless steel grid-connected box is manufactured by LYE Technology in 201 or 304 stainless steel for distributed generation and microgrid connections. Three sizes from 500 x 750 x 180 mm to 700 x 1000 x 180 mm use a double-slope rain cap, internal sealing strips and side ventilation to stay weatherproof while shedding heat.
- Material: 201 or 304 grade stainless steel
- Sizes: BWX-507518 / BWX-609018 / BWX-7010018
- Dimensions: 500 x 750 x 180 mm to 700 x 1000 x 180 mm
- Sealing: Built-in sealing strips, double-slope rain cap
- Ventilation: Multiple ventilation holes on the side faces
Stainless Steel Grid-Connected Box: Key Features & Typical Use
Stainless Steel for Coastal and Humid Sites
The enclosure is fabricated from 201 or 304 grade stainless steel, which is the deciding factor where painted steel would rust through within a few years: coastal installations, humid rural sites and locations with airborne salt or fertiliser dust. The material choice also keeps the enclosure rigid without the weight of a heavy-gauge mild steel shell.Double-Slope Rain Cap and Sealing Strips
A double-slope rain cap sits over the enclosure and sheds water away from the door opening rather than letting it pool on a flat top. Combined with built-in sealing strips, it provides protection against water, rain and dust ingress, which is what allows the box to be mounted in an exposed position instead of under a shelter that nobody builds.Side Ventilation Without Losing Sealing
Ventilation holes are placed on the sides of the enclosure, where they are least exposed to driving rain, so internal components still lose heat by convection. Designing ventilation and sealing together is the reason this box can be used for grid-connected equipment that generates continuous losses in a small volume.Detachable Base Plate for Simple Installation
Inside the enclosure, a detachable mounting base plate carries the electrical equipment, so components can be mounted and wired before the plate goes into the box. That reduces the time spent working on a pole or a wall bracket, and it means a faulted assembly can be swapped out rather than rebuilt on site.Stainless Steel Grid-Connected Box Specifications & Technical Data
| Parameter | Details |
|---|---|
| Product | BWX stainless steel grid-connected box |
| Material | 201 or 304 grade stainless steel |
| Model BWX-507518 | 500 x 750 x 180 mm (W x H x D) |
| Model BWX-609018 | 600 x 900 x 180 mm (W x H x D) |
| Model BWX-7010018 | 700 x 1000 x 180 mm (W x H x D) |
| Sealing | Built-in sealing strips against water, rain and dust |
| Rain protection | Double-slope rain cap |
| Ventilation | Multiple ventilation holes on the side faces |
| Internal mounting | Detachable mounting base plate |
| Installation environment | Indoor and outdoor |
| Customisation | Hole drilling, custom printing, specified component brands |
| Application | Distributed generation and microgrid grid connection |
BWX — Stainless Steel Grid-Connected Box for Exposed Locations
Small grid-connection boxes are often installed in the places with the worst weather: on a pole beside a field, against a coastal wall, or on a frame above a roof. The BWX is built for those positions from 201 or 304 stainless steel, with a double-slope rain cap and internal sealing strips that keep water, rain and dust out of the enclosure.The product is also described as a stainless steel grid-tie box, a generation connection enclosure or an outdoor meter and protection box, and it is compared with painted steel boxes and with larger cabinets. The choice of material is usually forced by the site rather than by preference, so the useful question for any manufacturer is whether 201 or 304 grade is used, and how the sealing system copes with a cable entry made on site.Ventilation holes are positioned on the side faces rather than the top or the door, where driving rain is least likely to reach them, so the box dissipates internal losses by natural convection while the sealing stays intact. Three sizes are offered, from 500 x 750 x 180 mm up to 700 x 1000 x 180 mm, for distributed generation and microgrid connections.Inside, a detachable mounting base plate carries the protection, metering and connection equipment, so the electrical assembly can be prepared on a bench and installed as a unit. The box is suitable for indoor and outdoor installation and accepts knockouts, custom printing and complete-set assembly with specified component brands.Factory-Direct Stainless Steel Grid-Connected Box Manufacturer & OEM / ODM
We Manufacture, You Brand
LYE Technology (Zhejiang) Co., Ltd. is a national high-tech enterprise and manufacturer in Wenzhou, China: sheet-metal fabrication, welding, powder coating, busbar machining and final assembly run on our own factory lines, and every unit is function-tested before it leaves the works. A BWX Stainless Steel Grid-Connected Box that reaches your site carries the routine test behind it, not just the rating on the nameplate.We are one of the Top 10 Brands of China's small power distribution boxes and a drafter of national standards in this category, and we hold ISO9001, ISO14001, ISO45001, CCC, CE and TUV certification. Because we are the manufacturer rather than a trading company, our sales engineers quote from your drawing in factory-direct terms, and OEM or ODM work is produced on the same lines as our standard products.For the BWX we fabricate the stainless steel enclosure and fit the sealing system in our own works, so a specific gland arrangement is handled at drawing stage.- OEM branding — custom colours, laser marking and your own project or retail packaging, applied at the factory.
- ODM options — ratings, configurations and internal layouts built around your drawings or single-line diagram.
- Certification — ISO9001, ISO14001, ISO45001, CCC, CE and TUV, with test documents supplied per project.
- MOQ — flexible quantities for a project or a trial order, with mixed types welcome in one shipment.
BWX-7010018 stainless steel box with double-slope rain cap
Side ventilation openings and internal sealing strip detail
Stainless Steel Grid-Connected Box Buying Guide from the Manufacturer
These boxes are usually ordered against a connection point that already exists. These are the points we confirm before production.
- Confirm the equipment going inside, so the correct size is chosen from the three available.
- Confirm the grade of stainless steel required by the site environment, 201 or 304.
- Confirm how the box will be mounted and where the cable glands will enter.
- Confirm whether a specific component brand or printed identification is required.
- Send the connection diagram, mounting arrangement and site photographs.
- Approve the drawing, then production with inspection and dispatch.
Manufacturer & Sales Support for Wholesale Buyers
OEM / ODM
Learn more →Factory colours · Logo marking · Custom layout
Wholesale
Learn more →Factory pricing · Flexible MOQ · Global shipping
Distributor Support
Learn more →Account manager · Drawing support · Priority lead times
Need a Weatherproof Grid-Connection Box?
OEM/ODM, wholesale pricing and distributor support straight from the manufacturer — one enquiry gets you a factory-direct quotation for the BWX Stainless Steel Grid-Connected Box, sized to your connection diagram, mounting arrangement and the environment the box will be installed in, with type-test documentation under IEC 60529 for enclosure protection. Our sales team replies with a specification and an indicative price, so send your drawings and quantity.Contact Our Sales TeamStainless Steel Grid-Connected Box — Frequently Asked Questions
What is a stainless steel grid-connected box?
It is a compact weatherproof enclosure used at the point where a distributed generation source connects to the grid or to a microgrid, housing protection, metering and connection equipment. The BWX is fabricated from 201 or 304 grade stainless steel in three sizes from 500 x 750 x 180 mm to 700 x 1000 x 180 mm, with a double-slope rain cap and internal sealing strips.Why use stainless steel instead of painted steel for this box?
Because these boxes are usually mounted where nothing shelters them: on a pole beside a field, on a coastal wall or on a frame above a roof. Painted steel eventually fails where the coating is chipped or where moisture reaches the cut edges and gland plate, while stainless steel removes that failure mode without depending on a paint film surviving installation.What is the difference between 201 and 304 stainless steel?
Both resist corrosion far better than coated mild steel, but 304 contains nickel and molybdenum in proportions that make it more resistant to chlorides and chemical exposure, which matters in coastal and industrial locations. 201 costs less and is adequate for humid but non-aggressive rural and inland sites. Choosing between them should follow the actual environment, not the price list.Who manufactures stainless steel grid connection boxes?
Suppliers range from small sheet-metal workshops to manufacturers who also build cabinets and switchgear, and the difference is usually in the material and the sealing detail. Ask which grade of stainless steel is actually used, how the enclosure is welded and finished, and whether the sealing system is tested as an assembly rather than assumed from the gasket specification. LYE manufactures the BWX in Wenzhou on our own fabrication lines and holds ISO9001, ISO14001, ISO45001, CCC, CE and TUV certification.How much does a stainless steel grid-connected box cost?
Indicative factory-direct pricing is roughly US$300 to US$3,000 per cabinet, depending on the size, the grade of stainless steel, the internal equipment fitted and the quantity ordered. Stainless steel dominates the material cost, so the grade decision is the largest single lever on price — which is why the intended environment should be stated clearly at enquiry stage.
Download PDF
Electrical Cabinet Product Catalog
Mini Distribution Box Product Catalog
Distribution Box Product Manual
Fiber Optic Box Product Manual
Fan Module Manual
Use a distribution box for final circuits and compact branch protection; use a cabinet when the project needs larger incoming capacity, more feeder groups, metering, busbars or greater internal separation. The final choice should be checked against the single-line diagram, device list, available installation space and local project rules.
Provide the device schedule, circuit quantity, component dimensions, cable-entry direction, mounting method and required spare capacity. LYE also reviews door clearance, bending radius, heat-producing devices and the usable depth behind the mounting plate before confirming an enclosure size.
Start with the actual exposure to dust, rain, cleaning water and accidental contact rather than choosing the highest number by default. Cable entries, ventilation, door seals and installation workmanship affect the finished assembly, so the target rating and verification basis must be confirmed for the specific product and project.
Coated or galvanized steel is commonly considered for general indoor service, stainless steel for humid or corrosive locations, and engineering plastic for lightweight non-metallic applications. Material grade, thickness, UV exposure, chemical contact and earthing requirements must be confirmed against the installation environment.
Share the component heat load, ambient temperature, solar exposure, duty cycle and allowable internal temperature. LYE can then review enclosure volume, spacing, ventilation or fan provisions, sun shields, heaters or drainage details; the final thermal design remains tied to the installed equipment and site conditions.
Yes. A dimensioned drawing is preferred, but a physical sample and clear reference photographs can also start the review. Material, thickness, openings, hardware, finish, labels, inspection points and packing are recorded before sampling or repeat production.
PDF and common 2D CAD drawings are suitable for most enclosure enquiries, while 3D files can help with complex assemblies. Include a revision number, units, tolerances and component references; file compatibility and any missing production information will be confirmed during review.
A sample or first article can be arranged for a new or customized product. The approval plan should identify dimensions, openings, fit, appearance, hardware, labels and packaging, together with the sample cost and timing agreed for the actual order.
Available documents may include approved drawings, packing lists, dimensional or appearance inspection records, product data and certificates applicable to the confirmed model. Destination-specific declarations or third-party testing must be requested before order placement so availability and scope can be verified.
Lead time is confirmed after the product scope, quantity, sample requirement and finish are known. Packing is reviewed against product weight, surface protection, destination and shipping method; if an issue is found after delivery, send the order reference, label, photographs and quantity affected so it can be traced and reviewed.
Related Products
Send Inquiry
FROM PRODUCT TO PROJECT
Review the installation context before quotation
Use the related solutions to check typical installation inputs, then send drawings, dimensions and quantities for a manufacturability review.
Relevant Solutions
All Solutions
ENGINEERED SOLUTION
Infrastructure Project Enclosure Solution
Customized electrical enclosures for municipal utilities, transport facilities, public engineering and outdoor service points, reviewed around site exposure, access and delivery documentation.
View Solution 
ENGINEERED SOLUTION
Renewable Energy Distribution Solution
PV grid-connection cabinets and outdoor distribution enclosures coordinated around protection, isolation, metering, cable interfaces and the actual installation environment.
View Solution 
