Appleton GRSS Explosionproof C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$345.34
Appleton GRSS Explosionproof Conduit Outlet Box, Multiple Hubs

Appleton GRSS Explosionproof Conduit Outlet Box, Multiple Hubs

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Model: GRSSA75

In Stock (leaves warehouse same day if ordered before 3pm ET)

$345.34
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Appleton GRSS Explosionproof Conduit Outlet Box, Multiple Hubs

The Appleton GRSS Series conduit outlet boxes with multiple hubs are explosionproof, dust-ignitionproof, and raintight, making them ideal for indoor and outdoor classified hazardous locations. Each box is furnished with an internal ground screw, a cover, and a cover O-ring, and is rated for Class I, Division 1 and 2, Groups B, C, D; Class II, Division 1 and 2, Groups E, F, G; and Class III applications. The copper-free aluminum body and cover with epoxy powder coat finish deliver superior corrosion resistance for demanding industrial environments.

Key Features

  • Multiple Hubs: Permit flexibility for connecting different lengths of conduit and changing conduit direction.
  • Internal Ground Screw: Standard on every box for reliable grounding continuity.
  • Explosionproof, Dust-Ignitionproof, Raintight: Rated construction for classified indoor and outdoor locations.
  • Furnished with Covers: Includes cover and cover O-ring for a secure, sealed enclosure.
  • Threaded Connection: Used with threaded metal conduit for general purpose wiring.
  • Accurately Tapped, Tapered Hub Threads: Provide tight, rigid joints and ground continuity.
  • Durable Construction: Copperfree (4/10 of 1% max.) aluminum body and cover for superior corrosion resistance.
  • Finish: Epoxy powder coat for added protection in harsh environments.

Certifications & Compliance

  • Class I, Division 1 and 2, Groups B, C, D
  • Class II, Division 1 and 2, Groups E, F, G
  • Class III

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Indoor and Outdoor Classified Hazardous Locations
  • Explosionproof and Dust-Ignitionproof Electrical Installations
  • Conduit Routing and Direction Changes
  • Maintenance Access Points for Conduit Systems
  • General Purpose Wiring with Threaded Metal Conduit

Why Appleton?

Appleton GRSS conduit outlet boxes combine a copper-free aluminum body and cover, epoxy powder coat finish, and an internal ground screw to deliver corrosion-resistant, code-compliant performance in classified hazardous locations. The accurately tapped, tapered hub threads ensure tight, rigid joints and dependable ground continuity, making these boxes a trusted choice for explosionproof and dust-ignitionproof electrical installations.

Product Specs

Product Type:
Outlet Box
Product Finish:
Epoxy Powder Coat
Connection Type:
Threaded
Product Material:
Copper-Free Aluminum
Department:
Electrical
Product Group:
Boxes & Enclosures
Product Subgroup:
Electrical Boxes

Appleton GRSSA75 – Frequently Asked Questions

1) Can the Appleton GRSS conduit outlet box be used in a Class I Division 1 hazardous area?
Yes. The GRSS Series box is rated for Class I, Division 1 and 2, Groups B, C, D; Class II, Division 1 and 2, Groups E, F, G; and Class III. That covers the hydrogen-group (B) areas a lot of boxes stop short of, so it works in battery rooms and refining areas as well as general Group D petrochemical work.
2) Is the Appleton GRSS outlet box OK to mount outdoors?
It is raintight in addition to being explosionproof and dust-ignitionproof, so it is built for outdoor classified locations as well as indoor. The copper-free aluminum body and cover carry an epoxy powder coat for corrosion resistance, and a cover O-ring seals the enclosure.
3) Does the Appleton GRSS box come with a cover, or do I order that separately?
Cover is included, along with the cover O-ring and an internal ground screw. You do not order those as separate line items. What you do supply is the conduit, conduit sealing fittings where the code requires them, and any wire or splice components.
4) Do I need threaded rigid conduit for the Appleton GRSS box, or will EMT work?
Threaded metal conduit only. The connection type is threaded, with accurately tapped tapered hub threads that give the tight rigid joint and ground continuity a hazardous-location installation depends on. EMT and its compression or set-screw connectors will not make up to these hubs, so plan on rigid or IMC.
5) Why choose a multiple-hub GRSS box instead of a single-hub conduit body?
Multiple hubs let you land conduit runs of different lengths and change direction at the box, so one enclosure handles a pull point, a turn, and a maintenance access point in the same spot. A single-hub or dead-end box only terminates a run. If your layout has branches or elbows at that location, the multiple-hub GRSS is the one that saves fittings.
6) Is the Appleton GRSS box safe around aluminum-sensitive process areas, and what does copper-free mean here?
The body and cover are copper-free aluminum, defined by Appleton as 4/10 of 1 percent copper maximum. That limit is what lets the enclosure be used in atmospheres where copper or copper alloys are a corrosion or reaction concern, such as acetylene and ammonia service areas.
7) Is grounding continuity handled by the hubs alone on the Appleton GRSS box?
Both paths are there. The tapered threaded hubs provide ground continuity through the conduit system, and every box ships with an internal ground screw so you can land a bonding conductor inside the enclosure. That matters on inspections where an equipment grounding conductor is pulled with the circuit.
8) What is the Appleton part number for the GRSS box and how do I make sure I get the right one?
The model here is GRSSA75, an Appleton GRSS Series explosionproof conduit outlet box with multiple hubs. Order by that MPN. The trailing figure in GRSS part numbers tracks the hub size, so matching the number exactly is what keeps the hub trade size right for your conduit run.
How fast can I get the Appleton GRSSA75 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Appleton GRSSA75 come with a warranty?
Absolutely. The Appleton GRSSA75 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Appleton GRSSA75?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Appleton GRSSA75 from ZenSupply?
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