Eaton RB300AE RhinoBox Econ - NEMA 3R Weatherproof
Part Number: RB300AE
Quick Summary
Eaton RB300AE RhinoBox Econ powers two devices in weatherproof enclosures for industrial distribution. Operators often confront weather exposure and vandalism risks that threaten uptime and safety in outdoor power feeds. Certified to cETLus NOM and built to NEMA 3R weatherproof standards, this enclosure delivers reliable outdoor performance. With a 50A, 120/240 V design and two-device per circuit configuration, it simplifies outdoor wiring tasks and accelerates panel builds. By combining rugged construction with fast installation, it reduces field labor, improves safety, and supports consistent code compliance for durable electrical infrastructure projects.
Product Information
Extended Description
RB300AE Eaton: Eaton RhinoBox Econ power distribution unit, 50A, Two devices, Weatherproof, NEMA 3R, DUPX Aut, Yellow, Cold-rolled 18 gauge steel, 120/240V
Product Name
Eaton RhinoBox Econ power distribution unit
Catalog Number
RB300AE
UPC
032664719752
Product Length/Depth
22.2 in
Product Height
12.3 in
Product Width
16.8 in
Product Weight
35 lb
Certifications
cETLus NOM
Type
RhinoBox Econ
Amperage Rating
50A
Color
Yellow
Devices per circuit
2
Material
Cold-rolled 18 gauge steel
NEMA configuration
DUPX Aut
NEMA type
3R
Voltage rating
120/240 V
Environmental conditions
Weatherproof
Reset type
Automatic reset
NEMA Rating
3R
Feature: Weatherproof cold-rolled 18 gauge steel enclosure. Business Impact: Enhanced durability and corrosion resistance in harsh outdoor environments, lowering maintenance costs over the service life. Application: Outdoor power distributions for utilities, manufacturing yards, and remote facilities that demand reliable protection from weather. Feature: 50A amperage rating with two devices per circuit. Business Impact: Flexible power provisioning reduces the need for multiple smaller boxes and minimizes wiring complexity. Application: Fast-scaling of feed points in compact outdoor enclosures and critical equipment rooms. Feature: NEMA 3R configuration with DUPX Aut and automatic reset. Business Impact: Safe, code-compliant operation with automatic fault recovery, reducing downtime after a fault and simplifying field restoration. Application: Harsh-weather installations such as process areas and outdoor substations. Feature: 120/240 V operating range and weatherproof designation. Business Impact: Versatile compatibility with common industrial loads and protective weather sealing, lowering risk of moisture-related outages. Application: General service entrance in outdoor enclosures and remote plant sections. Feature: Dimensions and weight (22.2 in L × 16.8 in W × 12.3 in H; 35 lb). Business Impact: Manageable footprint for retrofit projects and easy transport to job sites, improving installation speed. Application: Retrofit and new builds where space is at a premium. Feature: Material and finish—cold-rolled steel with yellow finish. Business Impact: High visibility and durable finish that resists wear in demanding environments, aiding long-term branding and safety. Application: Outdoor installations requiring durable, easily identifiable equipment. Feature: Certifications and ratings—cETLus NOM; NEMA 3R. Business Impact: Regulatory compliance and reliable performance in outdoor settings, supporting audit-ready documentation. Application: Environments requiring formal approvals and standard-compliant equipment.
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FAQs
RB300AE is designed for outdoor installation in NEMA 3R weatherproof enclosures and features a two-device per circuit configuration with a 50A rating. Ensure mounting within a weatherproof enclosure, verify 120/240 V supply compatibility, and confirm the DUPX Aut configuration aligns with your panel's feeder arrangement. The unit’s dimensions and weight facilitate on-site handling and straightforward mounting in standard electrical spaces.
The RB300AE provides a 50A amperage rating and operates at 120/240 V, supplying two devices per circuit. These specs support mid-size outdoor loads with reliable distribution while maintaining safety and code compliance. The automatic reset feature helps minimize downtime after faults, and the NEMA 3R weatherproof rating protects active circuits in exposed environments.
Yes. The RB300AE RhinoBox Econ is purpose-built for harsh outdoor conditions, featuring a weatherproof NEMA 3R enclosure and cold-rolled steel construction. Its two-device per circuit design, 50A rating, and automatic reset provide robust protection against rain, dust, and mechanical impacts while enabling reliable service for outdoor industrial feeders.
The RB300AE carries cETLus NOM certification and a NEMA 3R rating, confirming safety and weather resistance for outdoor use. These certifications reassure installers and inspectors that the unit meets recognized safety and reliability standards, reducing qualification time for regulatory reviews and supporting compliant, industry-standard installations.
Maintenance benefits include reduced corrosion risk due to steel construction and protected internal components from weather exposure, leading to fewer field faults. ROI comes from improved uptime, faster outdoor installations, and reduced field labor thanks to the unit’s compact footprint, two-device configuration, and automatic reset—delivering lower lifecycle costs in outdoor electrical infrastructure projects.