Exploring Different Types of NEMA 4X Junction Boxes

The phrase “junction box” is a common term you hear in the electrical industry. It’s loosely defined by an enclosure housing any type of electrical connection. This definition can make it sound like any enclosure could technically be used as a junction box. But more often than not, the end user is seeking some level of protection for their connection. They don’t want foreign bodies like dirt, dust or debris getting into the enclosure and interfering with their electrical connection.The National Electrical Code dictates no wire connection is permitted outside of a junction box, therefor electricians and electrical engineers are constantly in need of an enclosure they can trust to keep their wiring connection protected.One of the most popular protection levels in the US enclosure market is the NEMA 4X rating. This rating provides the widest range of protection from common hazards like dirt, water (in the form of rain, sleet, snow, splashing or hose-directed), corrosion and external ice formation. Let’s explore some of the most sought after NEMA 4X junction box types that Polycase has to offer:NEMA 4X junction box with hinged cover:Polycase has nearly 60 different hinged NEMA 4X junction boxes to choose from. These enclosures are available in polycarbonate, steel and stainless steel varieties. A hinged cover offers quick access to internal components without the hassle of needing tools like a screw driver to open the box.NEMA 4X junction box with screw-on cover: A more common style of junction box is one with a screw-on cover. We have over 200 different junction boxes with screw-on covers available. They range in size from 1.97 x 1.77 inches all the way up to 16.59 x 14.59 inches. Available materials include polycarbonate, ABS and aluminum. Screw-on covers provide a simple layer of security for your wiring connection. Need an addition level of security for your junction box? Try our tamper-resistant screws available on the YH Series and YQ Series of NEMA enclosures.

NEMA 4X junction box with flanges:

Almost all junction boxes need some sort of surface-mounting mechanism. The boxes are commonly found on walls, ceilings and other pieces of larger equipment. Polycase has a wide range of NEMA 4X junction boxes that are surface mountable by use of a molded-on flange, screw-on flange, or screw-on mounting kit.NEMA 4X junction box with knockouts: A unique product line available at Polycase is the SK Series of enclosures. This plastic junction box with knockouts is German-engineered for superior performance. The SK Series features metric knockouts on the base which can easily be used as needed onsite, making it one of the most flexible junction boxes available.You can find these junction boxes and other NEMA enclosures in stock and ready to ship from Polycase. Need help finding the perfect solution for your specific application? Contact our friendly and knowledge team by phone, email or live chat to get started with your NEMA 4X junction box project!