Polycarbonate Enclosures

Polycarbonate Electrical Enclosure
Polycarbonate enclosures and boxes are excellent choices for outdoor commercial and industrial applications.
Polycarbonate is the chosen nonmetallic material for outdoor electronic and electrical applications.
Polycarbonate electrical enclosures protect terminals, controls, instruments, and electronics in environments where metal boxes corrode or add unnecessary weight — outdoor utility equipment, water treatment, irrigation, solar and street-lighting controls, and chemical-exposed areas. UV-stabilized polycarbonate keeps its impact strength across years of outdoor exposure, and its natural electrical insulation removes the need for earthing the enclosure body.
We supply polycarbonate enclosures in standard sizes and customize them with milled cutouts, drilled cable entries, transparent lids, and mounted DIN rails. ElectricalCabinet has built electrical enclosures since 2010, delivering more than 4,000 projects for industrial clients. Our fabrication covers CNC punching, bending, and welding, with custom cutouts, sizes, and surface finishes built to your drawings. Tell us the components you house inside, and we will configure the box, glands, and accessories accordingly.
Advantages Of Polycarbonate Electrical Enclosures
Polycarbonate material is perfect for creating heavy-duty enclosure boxes because of its unique features, which include:
- Extremely durable and impact-resistant
- The thermoplastic material can be repeatedly heated and cooled without losing its integrity.
- Easy to cut and personalize, especially when compared to other outdoor enclosure alternatives like stainless steel and fiberglass enclosures.
- Highly resistant to most kinds of corrosion.
Can be made in a number of styles and shapes, including clear enclosure lids.
Application of Polycarbonate Electrical Enclosure
Polycarbonate electrical enclosure is designed for:
- Electrical terminals
- Controls
- Instruments
- Electronic pieces of equipment
- Transformers
- Systems
Custom Polycarbonate Electrical Enclosure
We recognize that each application is unique, which is why we provide bespoke electrical enclosures. Our engineers will collaborate with you to create an enclosure that fits your exact specifications. From prototyping to scale manufacturing, we can deliver the ideal solution for your application.
Provide us with your drawing ideas and parameters, and we will produce a custom Polycarbonate electrical enclosure that is ideal for your needs. We can help you with either one-time modification or continuing support.
Related Enclosuree By Material
Key Specifications & Options
The configuration below reflects the options we build to order for polycarbonate electrical enclosures. Every parameter can be adjusted to match your drawings and site conditions — send us your requirements and our engineers will confirm what applies to your project.
| Parameter | Options / Typical Range |
|---|---|
| Body material | UV-stabilized polycarbonate (PC); glass-filled or ABS variants on request |
| Protection rating | IP65 to IP66 typical with molded-in gasket lids |
| Lid options | Opaque grey or transparent polycarbonate lids for meter and display visibility |
| Operating temperature | Approximately −40 °C to +105 °C continuous depending on grade and load |
| Corrosion behavior | Immune to rust and most acids/alkalis; no surface coating required |
| Customization | Milled cutouts, drilled and tapped entries, DIN rail and plate mounting, locks |
| Typical applications | Outdoor controls, irrigation, solar, street lighting, water treatment, marine deck equipment |
| Advantages over metal | Several times lighter than steel; insulating body; will not dent or rust |
Frequently Asked Questions
How does polycarbonate compare with fiberglass (GRP) enclosures?
Polycarbonate offers higher impact resistance and easier on-site machining (cut with normal tools), while GRP holds up better under sustained high heat. For most outdoor control and junction applications below 100 °C, polycarbonate is the more practical and economical choice.
Can the lids be transparent?
Yes. Transparent polycarbonate lids let you read meters and displays without opening the box — common for utility, solar, and pumping installations. Opaque lids are available where UV exposure on internal components is a concern.
Is polycarbonate suitable for direct outdoor exposure?
UV-stabilized grades are engineered for multi-year outdoor service without yellowing or embrittlement in normal climates. For extreme UV sites we review lid material and shading options with you.
Can you drill and mill the enclosures before shipping?
Yes. We machine cable entries, ventilation slots, and display cutouts to your layout and can pre-fit DIN rails, terminal blocks, and locks so the enclosure arrives installation-ready.
Related Guides
- Polycarbonate Enclosures with Clear Lids: Selection Inputs — when a transparent lid is the right specification
- Plastic Enclosure Temperature Ratings: Ambient, Heat, UV, and Duty Inputs — temperature and UV limits for plastic enclosure materials
- Outdoor Plastic Junction Boxes: Pros, Cons, and Selection Inputs — trade-offs of plastic boxes in outdoor duty
- Electrical Enclosure Material Selection: How to Choose for the Environment — environment-first selection across all material families





















