Engineering Blog | Fibox Enclosures

What to Look For in a NEMA 4 Enclosure

What to Look For in a NEMA 4 Enclosure (And Why It Doesn't Have to Be Metal)

The Metal Alternative: Why Polycarbonate is the New Standard for NEMA 4

When engineering a standard control panel, defaulting to a painted carbon steel box is a habit. But choosing metal means you are choosing permanent dents, heavy lifting, and eventual rust.

Fibox engineered high-grade polycarbonate enclosures to beat carbon steel at its own game—delivering heavy-duty NEMA 4 protection without the heavy-metal drawbacks.

Why Is There Condensation Inside My Electrical Enclosure?

Finding water droplets inside an electrical enclosure can be alarming. Many people assume the enclosure is leaking, but in many cases the moisture never entered from the outside—it formed inside the enclosure.

Understanding why condensation occurs is the first step toward protecting sensitive electronics and improving long-term system reliability.

Electrical Enclosures with Knockouts

Save Time in the Field with Electrical Enclosure with Knockouts

Whether you are wiring a junction box or assembling a control panel, every cable and conduit entry takes time. Electrical enclosures with factory-designed knockouts simplify installation by providing predetermined entry locations that can be opened without extensive drilling or machining.

What Is a Non-Metallic Electrical Enclosure?

Electrical enclosures have traditionally been manufactured from painted steel, stainless steel, or fiberglass. However, advances in engineered polymers have made non-metallic electrical enclosures a preferred solution for many industrial and outdoor applications.

Today's polycarbonate enclosures offer exceptional durability while eliminating many of the challenges associated with traditional metal enclosures.

Waterproof Control Panel Boxes

Waterproof Control Panel Boxes: What Engineers Should Know Before Specifying One

"Waterproof" is one of the most common terms used when searching for electrical enclosures, but it is also one of the least precise.

A control panel enclosure may be exposed to rain, washdowns, condensation, humidity, or even temporary flooding. Each condition places different demands on the enclosure design.

NEMA 6P Enclosures: When Is a NEMA 6P Rating Necessary?

Choosing the correct waterproof NEMA enclosure rating is essential for protecting electrical equipment. One of the most misunderstood ratings is NEMA 6P.

While many engineers assume NEMA 6P simply means "waterproof," the actual requirements are much more specific.