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GRU Junction Box

Appleton GRU75A Explosion Proof Conduit Box 3/4″

Original price was: $95.99.Current price is: $82.99.

Elevate electrical safety standards in hazardous environments with the Appleton GRU75A Outlet Box. This rugged 3/4-inch conduit box is specifically engineered for explosive atmospheres, featuring precision-cast copper-free aluminum and five strategically positioned threaded hubs. Its universal design adapts to various configurations while maintaining critical safety integrity. With Class I, Division 1 & 2 and Class II certifications, this box delivers reliable protection for oil refineries, chemical plants, and mining operations. The smooth internal bushings and integrated ground screw ensure both conductor protection and electrical safety, making it the trusted choice for professionals who refuse to compromise on workplace safety.

Availability: 96 in stock

SKU: GRU75A Categories: , , ,

The Appleton GRU75A Explosionproof Conduit Outlet Box delivers industry-leading protection for hazardous location electrical installations. Engineered specifically for Class I, Division 1 & 2 and Class II environments, this premium explosion proof conduit body features copper-free aluminum construction (max 0.4% copper) with a superior triple-coat finish (zinc electroplate, chromate, and epoxy powder coat) that provides exceptional corrosion resistance in harsh industrial conditions. This versatile 3/4-inch hub size explosion proof junction box serves essential functions in hazardous areas, including providing secure access to conductors for pulling and splicing, facilitating electrical connections, and enabling changes in conduit direction while maintaining critical safety integrity in potentially explosive atmospheres.

Designed to meet stringent NEC requirements for explosionproof applications, the GRU75A features precision-engineered NPT tapered threaded hubs that ensure secure, rigid connections and reliable ground continuity throughout your electrical system. Its universal explosionproof conduit body configuration allows for flexible adaptation into various setups (T, L, X, or C arrangements) using appropriate Appleton covers and sealing gaskets (sold separately). Safety-enhancing design elements include smooth, rounded integral bushings in each hub to protect conductor insulation during wire pulling operations, and a standard internal green ground screw for enhanced electrical safety. With NEMA 3 and 4 ratings and suitability for wet locations when paired with NEMA 4X gaskets, this Appleton explosion proof outlet box delivers the versatile, dependable performance demanded by oil and gas facilities, chemical manufacturing plants, and other challenging industrial environments where safety is paramount.

Appleton GRU75A Spec Sheet

  1. Q: What is the Appleton GRU75A? A: The Appleton GRU75A is a universal-style, explosion proof conduit outlet box designed for safe installation and access to wiring in hazardous locations.
  2. Q: What size are the conduit hubs on the GRU75A? A: This model features 3/4-inch NPT (National Pipe Thread) tapered hubs for secure conduit connections.
  3. Q: What material is the GRU75A made from? A: It is constructed from high-strength, durable malleable iron to withstand harsh industrial environments.
  4. Q: What does “Universal” mean for this outlet box? A: “Universal” means the GRU75A box body can be used to create various configurations (like T, L, C, or X) depending on the specific cover purchased and installed separately.
  5. Q: Is the Appleton GRU75A actually explosion proof? A: Yes, it is designed and rated as explosion proof and dust-ignitionproof, making it suitable for use in specified hazardous (classified) locations where flammable gases, vapors, or dusts may be present. Always confirm the specific ratings match your site requirements.
  6. Q: What kind of corrosion protection does the GRU75A have? A: It features Appleton’s standard triple-coat finish (zinc electroplate, chromate seal, epoxy powder coat) for excellent resistance to corrosion.
  7. Q: Can the GRU75A be used outdoors or in wet locations? A: Yes, when assembled with the appropriately rated cover and gasket (e.g., NEMA 4X), the GRU75A is suitable for use in wet and corrosive locations.
  8. Q: Does the GRU75A outlet box come with a cover and gasket? A: No, covers and gaskets are typically sold separately. This allows users to select the cover style (e.g., Type T, Type L) needed for their specific configuration.
  9. Q: Does the GRU75A help protect wires during installation? A: Yes, each hub has a smooth, rounded integral bushing that protects conductor insulation from abrasion or damage during wire pulling.
  10. Q: Is there a provision for grounding inside the box? A: Yes, the GRU75A comes standard with an internal green ground screw for securely connecting equipment grounding conductors.

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