The Eaton Crouse-Hinds GUBA01 explosion-protected junction box is designed for hazardous areas (Zones 1, 2, 21, and 22) where explosion protection is essential. It provides a safe and durable enclosure for electrical connections, ensuring protection against flammable gases, vapors, and combustible dust.
Manufactured from copper-free aluminum, the GUBA01 offers IP66-rated ingress protection, making it suitable for both indoor and outdoor applications in demanding industrial environments.
Description
Key Features & Benefits
✔ Explosion-Protected Certification: Certified for Ex d IIC, Ex tD A21, meeting ATEX, IECEx, and ANZEx standards.
✔ High Durability & Corrosion Resistance: Constructed from cast copper-free aluminum with a natural or optional epoxy powder finish for long-lasting protection.
✔ IP66 Ingress Protection: Provides full dust and water resistance, ensuring reliable performance in harsh environments.
✔ Threaded Construction: Allows for custom factory-drilled conduit and cable entries, enhancing flexibility for installation.
✔ Wide Temperature Range: Designed to operate in extreme conditions with a temperature rating from -20°C to +55°C.
✔ Versatile Mounting Options: Can be installed with various conduit and cable systems, offering multiple entry configurations.
Technical Specifications
| Feature | Details |
|---|---|
| Catalog Number | GUBA01 |
| Certifications | ATEX, IECEx, ANZEx |
| Zones Supported | 1, 2 (Gas) / 21, 22 (Dust) |
| Gas Group | IIC |
| Protection Type | Ex d IIC, Ex tD A21 |
| Ingress Protection | IP66 |
| Material | Copper-Free Aluminum |
| Standard Finish | Natural (optional epoxy powder coating available) |
| External Dimensions | 195mm x 220mm x 175mm |
| Internal Dimensions | 146mm x 146mm x 130mm |
| Mounting Feet (X x Y) | 195mm x 145mm |
| Weight | 4.2 kg |
| Ambient Temperature Range | -20°C to +55°C |
Maximum Number of Conduit Entries
| Entry Location | Available Sizes (Metric & Imperial) |
|---|---|
| Top & Bottom | 6 (20mm), 5 (25mm), 3 (32mm), 2 (40mm), 1 (50mm) |
| Sides | 6 (20mm), 5 (25mm) |
| Back | 3 (20mm), 3 (25mm) |
Note: Entries must be factory-drilled, and additional price adders may apply.
Applications
The GUBA01 explosion-proof junction box is ideal for hazardous industrial locations, including:
✅ Oil & Gas Refineries – Secure housing for electrical connections in volatile environments.
✅ Chemical & Petrochemical Plants – Ensures safe containment of wiring and electrical devices.
✅ Pharmaceutical & Food Processing Facilities – Protects against combustible dust and gas exposure.
✅ Mining & Heavy Industrial Operations – Provides rugged protection for electrical components.
✅ Power Plants & Offshore Platforms – Built to withstand extreme industrial conditions.
Why Choose the Eaton Crouse-Hinds GUBA01?
- Superior Explosion Protection – Fully certified to ATEX, IECEx, and ANZEx standards.
- Rugged & Corrosion-Resistant – Copper-free aluminum construction ensures long-term durability.
- Flexible Installation – Available with custom conduit entry configurations to meet specific requirements.
- Reliable Performance in High-Risk Areas – Designed to prevent ignition and explosion hazards, ensuring maximum safety.

