The right industrial pull box serves as both a maintenance pit stop for electrical conduits and a protected point for pulling and routing these wires. Inside the boxes, technicians can organize long routes of wiring without tugging or sharply bending the wires. Electrical pull boxes also enclose the wires to create a solid barrier against unauthorized access, protecting people nearby and the wires themselves from harsh industrial or underground conditions. Hope Electrical Products supplies industrial electrical pull box enclosures that meet stringent regulatory standards.

When to Use a Pull Box

Unlike junction boxes, electrical pull boxes do not contain wire connections for different circuits. Instead, pull boxes are convenient access points that let electricians pull and feed long runs of wire into position on a raceway system without snagging, stretching, or excess bends. Pull boxes are required in certain conduit runs to avoid exceeding the maximum number of bends between outlets as established by the National Electric Code (NEC). As a result, placement is one of the most important considerations.

Here’s when it makes the most sense to use an electrical pull box enclosure:

  • When you anticipate needing to make upgrades, repairs, or modifications to industrial wiring setups in the future
  • When you need to break up a conduit run made up of heavy wiring or runs that bend a total of more than 360 degrees
  • When you need to provide extra protection against environmental hazards, such as in utility centers, underground settings, or HazLoc applications like refineries or near flammable gases
  • When the conduit runs have high-amperage wiring

Size and Depth Considerations

Installation teams need to consider more than just placement and applications within a building or electrical infrastructure. The National Electric Code establishes standards regarding dimensional requirements. For example, 4 AWG or larger insulated conductors need to have electrical pull boxes sized according to NEC 314.28. NEC article 314.28(A)(2) also prescribes size requirements for angle pulls, U-pulls, and splices, ensuring that the raceway entries are spaced out proportionally based on the largest raceway in a row. The box depth depends on the space and sizing requirements of the largest conduit.

Hope Pull Box Models With UL/NEMA Ratings

Hope Electrical Products supplies clients with NEMA-rated pull boxes that meet NEMA 3R, NEMA 4, and UL 50 requirements. Our two main pull box solutions for electrical applications are:

Custom Accessories: Gaskets, Mounting Lugs, and More

Hope Electrical Products also offers custom gaskets, mounting lugs, and enclosure solutions for harsh environments and complex electrical projects. Customization options include different size options, weather-proof and explosion-proof hardware, and different mounting configurations. We also offer stainless steel, cast iron, and powder-coated steel material options. Our technicians can help you select the right solution for your specific NEMA rating and application.

Industries and Applications Using Pull Boxes

Choose custom and standard pull boxes from Hope Electrical Products for:

  • Bridges
  • Roadways
  • Tunnels
  • Transportation facilities
  • Parking lots
  • Outdoor lights

Simplify Conduit Runs With Pull Boxes From Hope Electrical

Hope Electrical is a leading provider of NEMA-rated junction boxes and pull boxes for long-lasting electrical infrastructure installations. Conveniently placed, durable electrical pull boxes can make it easier to maintain, upgrade, and revise wiring installations over time. Our products are built with long-lasting materials, and we offer custom sizing options to fit any configuration of cables and conduits. Contact us today to discuss your next project, or request a quote for pricing details.