Eaton RhinoBox RB302A Power Distribution Unit - NEMA 3R
Part Number: RB302A
Quick Summary
Eaton RhinoBox RB302A power distribution unit delivers reliable 50A distribution for rugged, weatherproof enclosures used in industrial facilities and field deployments. Engineers often struggle with keeping outdoor electrical systems safe, accessible, and compliant under harsh conditions. With a NEMA 3R rating and NOM/cETLus certification, it is engineered to withstand moisture, temperature swings, and regulatory scrutiny, while the automatic reset feature minimizes manual intervention. By aligning with enclosure and electrical-infrastructure strategies, RB302A supports 120/240 V circuits, compact 22.5 in depth, and a durable cold-rolled steel build—delivering lower lifecycle costs and smoother procurement for maintenance teams.
Product Information
Extended Description
RB302A Eaton: Eaton RhinoBox power distribution unit, 50A, Weatherproof, NEMA 3R, Lkg AutoRes, Red, Cold-rolled 18 gauge steel, 120/240V
Product Name
Eaton RhinoBox power distribution unit
Catalog Number
RB302A
UPC
032664669019
Product Length/Depth
22.5 in
Product Height
12.4 in
Product Width
16.7 in
Product Weight
37 lb
Certifications
NOM cETLus
Type
Rhinobox
Amperage Rating
50A
Color
Red
Devices per circuit
1
Material
Cold-rolled 18 gauge steel
NEMA configuration
Lkg AutoRes
NEMA type
3R
Voltage rating
120/240 V
Environmental conditions
Weatherproof
Reset type
Automatic reset
NEMA Rating
3R
The RB302A brings robust 50A capacity to outdoor power distribution, enabling centralized control of heavy loads without oversizing panels or creating wiring inefficiencies. This translates to improved uptime, predictable voltage delivery, and reduced risk of nuisance tripping in exposed environments. It is well suited for outdoor lighting, conveyors, climate-control units, and other field equipment where reliable power is critical for production flow and worker safety. The weatherproof, red RhinoBox enclosure, constructed from cold-rolled 18 gauge steel, provides durable protection against dust, moisture, and mechanical impact, lowering long-term maintenance costs and extending service life in harsh environments. Its NEMA 3R rating and Lkg AutoRes configuration simplify installation and field commissioning, while the automatic reset feature minimizes downtime by restoring power automatically after a fault clears. With one device per circuit, wiring is cleaner, fault isolation is clearer, and incremental capacity can be added without reworking existing infrastructure. This design supports seamless integration with existing electrical infrastructure and control panels, reducing engineering time and procurement complexity. Industry professionals will value cross-border compliance through NOM and cETLus certifications, ensuring the RB302A meets regional electrical standards while delivering consistent performance across sites.
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FAQs
Installing the RB302A in outdoor enclosures requires ensuring a clean, ventilated space with secure mounting to support its 37 lb weight. Verify a stable 120/240 V supply, confirm weatherproof seals around the enclosure, and maintain clear access for the automatic reset mechanism. Use appropriate cable glands and grounding paths to meet NOM/cETLus requirements.
RB302A is designed for 120/240V operation with a 50A amperage rating, enabling substantial load distribution from a single box. This supports heavy equipment, lighting, and climate control without overloading feeders. The unit’s NEMA 3R weatherproof enclosure ensures safe operation outdoors, while its single-circuit-per-device design simplifies protection coordination and wiring integrity.
Yes. The RB302A carries NOM and cETLus certifications, which validate electrical safety and performance across the U.S., Canada, and Mexico. This facilitates procurement for multinational projects, reduces certification delays, and helps ensure regulatory compliance during site commissioning and routine inspections.
The automatic reset feature minimizes manual intervention after faults, reducing downtime costs and service technician trips. Its durable cold-rolled steel construction and weatherproof 3R rating extend service life in sun, rain, and dust, lowering replacement frequency. On top of that, a single device per circuit simplifies preventive maintenance and reduces commissioning time.
RB302A is designed to complement RhinoBox deployments and general electrical infrastructure. Its 50A, 120/240V, and Lkg AutoRes configuration align with standard wiring practices, facilitating straightforward integration into established panels. When mixing brands, confirm compatibility with enclosure dimensions, mounting patterns, and regulatory approvals to maintain system safety and performance.