Eaton GUB04 Junction Box - Explosionproof, NEMA 4/7/9
Part Number: GUB04
Quick Summary
GUB04 junction box provides rugged, explosionproof enclosure for electrical connections in hazardous locations. For engineers and technicians, the challenge is delivering safe, code-compliant installations in confined spaces without sacrificing access for maintenance. This enclosure is UL-listed for explosionproof use and NEC/CEC compliant, with a NEMA 4/7/9 rating that stands up to dust, water intrusion, and corrosive environments. Its substantial dimensions (11 in long, 12 in high, 8.69 in wide) and a 9-5/8 in cover opening support complex wiring and component visibility. The heavy-duty Feraloy iron alloy construction, paired with installation sheets and compatibility with Crouse-Hinds GU/GUE/GUB series, delivers reliable field performance and reduces total cost of ownership through fewer box swaps and faster commissioning.
Product Information
Extended Description
GUB04 Eaton Crouse-Hinds: Eaton Crouse-Hinds series GUB junction box, 9-5/8" cover opening, 11" x 12" x 8-11/16", Feraloy iron alloy
Product Name
Eaton Crouse-Hinds series GUB junction box
Catalog Number
GUB04
UPC
782274469959
Product Length/Depth
11 in
Product Height
12 in
Product Width
8.69 in
Product Weight
93.14 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 1 Class I, Division 2 Class II, Division 1 Class II, Division 2 Class III
NEMA Rating
4 7 9
Enclosure size
11" x 12" x 8-11/16"
Cover opening size
9-5/8 in
Material
Feraloy iron alloy
Crouse-Hinds series GUE and GUB Explosionproof Junction Boxes catalog page
GUE and GUB Explosionproof Junction Boxes UL certification
IF 1172 - GU/GUE/GUB Junction Boxes
Eaton Specification Sheet - GUB04
Explosionproof enclosure for hazardous locations delivers essential safety and regulatory compliance, reducing risk in oil, gas, chemical, and mining environments. This translates to fewer incident-related downtime and smoother audits while supporting NEC/CEC standards. The combination of UL listing and NEMA ratings 4/7/9 ensures weather, dust, and water resistance in demanding plants, enabling longer service life with less maintenance. A large 9-5/8 in cover opening simplifies wiring, cable management, and component access, speeding field work and reducing installation time. Feraloy iron alloy construction provides rugged durability amid vibration, temperature swings, and chemical exposure, lowering total cost of ownership. Compatibility with GU/GUE/GUB families supports scalable installations and easier retrofits, backed by official installation sheets (IF 1172).
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FAQs
The GUB04 is designed for Class I, Division 1 and 2, and other hazardous locations. When planning installation, verify enclosure placement to minimize exposure to extreme temperatures and moisture. Use the IF 1172 installation sheet for guidance on mounting, wiring, sealing, and terminal access. Ensure proper grounding and cable entries to maintain explosionproof integrity while allowing for safe maintenance access.
Key specs include enclosure size 11" x 12" x 8-11/16", cover opening 9-5/8", material Feraloy iron alloy, and weight approximately 93.14 lb. The unit carries NEC/CEC compliance, UL explosionproof listing, and NEMA ratings 4/7/9, supporting reliable operation in demanding environments and ensuring protective enclosures for critical electrical installations.
Yes. The GUB04 is specifically intended for hazardous/classified locations, making it well-suited for oil & gas, chemical processing, mining, and other high-risk facilities. Its explosionproof design, robust material (Feraloy iron alloy), and NEC/CEC compliance help meet stringent industry standards while maintaining durability in harsh service conditions.
The GUB04 complies with NEC/CEC standards, is UL-listed for explosionproof use, and carries NEMA ratings of 4, 7, and 9. It is designed for Hazardous/Classified Locations and is part of the Crouse-Hinds series, ensuring compatibility with related GU/GUE/GUB enclosures and supporting regulatory compliance during audits.
The GUB04 reduces maintenance disruption by delivering a durable, long-life enclosure that withstands harsh environments, lowering replacement cycles. Its large wiring access and compatibility with installation guides accelerate commissioning, reducing labor costs. The combination of UL listing, NEC/CEC compliance, and NEMA ratings minimizes regulatory risk, supporting a faster return on investment in mission-critical sites.