Eaton RV48M28B4516CUPB Transformer - UL Listed
Part Number: RV48M28B4516CUPB
Quick Summary
Eaton RV48M28B4516CUPB transformer provides integrated protection and voltage transformation for three-phase industrial panels. This design addresses the common challenge of coordinating separate transformer and switchgear, which can inflate footprint and complicate maintenance. It carries DOE 2016 Efficient compliance, UL Listed certification, and a NEMA 2 enclosure to support indoor protection and safe operation in typical workshop environments. By combining a 45 kVA transformer with a primary MCCB, it reduces wiring, improves safety coordination, and lowers total cost of ownership. This solution is well-suited for low voltage distribution in manufacturing floors, data centers, and utility rooms seeking reliable power with compact form factor and proven performance.
Product Information
Extended Description
RV48M28B4516CUPB Eaton: 45 kVA BRKR INTEG XFMR 3PH 480-208Y/120 80C Rise Copper JGE3070FAGC Prim MCCB 942SD 280BPB
Product Name
Eaton Breaker integrated ventilated transformer
Catalog Number
RV48M28B4516CUPB
UPC
786680246500
Product Length/Depth
24 in
Product Height
51.5 in
Product Width
30.5 in
Product Weight
668 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 2
Frame
942SD
Insulation
229 °C
Material
Copper windings
Mounting
Floor or wall, upright only
Sound Level
NEMA ST-20
Tap size
2 at +2.5%, 4 at -2.5%
Wiring connection
280BPB
Frequency rating
60 Hz
Kva Rating
45 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
80 °C rise
Voltage rating
480 Vac-208Y/120 Vac
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Special features
Primary MCCB JGE3070FAGC
Weathershield
WS66
Feature: 45 kVA three-phase transformer with 480 V primary to 208Y/120 V secondary and integrated primary MCCB JGE3070FAGC. Benefit: Simplified protection and reduced coordination steps, enabling faster panel assembly and reliable startup in motor control centers. Application: Industrial panels and switchgear cabinets where tight space and verified protection are essential. Feature: Copper windings with 229 °C insulation and copper coil material. Benefit: Higher thermal performance and lower copper loss, translating to improved efficiency and reduced operating costs over the life of the transformer. Application: High-current loads and temperature-variable environments where efficiency matters for energy budgeting.Feature: NEMA 2 enclosure with 942SD frame, indoor-rated construction and upright mounting. Benefit: Easy installation on the shop floor or wall, with durable protection against dust and incidental moisture. Application: Indoor control rooms, machine enclosures, and manufacturing lines needing robust, space-efficient power distribution.Feature: DOE 2016 Efficient and 10 CFR Part 431 compliance. Benefit: Energy savings through federal efficiency standards and streamlined regulatory reporting, lowering energy intensity and compliance risk. Application: Facilities pursuing green initiatives and long-term operating expense reductions.Feature: Weathershield WS66 option and 80 °C rise insulation. Benefit: Enhanced environmental protection for broader indoor use and reliable performance under elevated load or ambient temperatures. Application: Harsh industrial environments where environmental sealing and thermal headroom are valued.Feature: Wiring connection 280BPB and 2 at +2.5%, 4 at -2.5% tap options. Benefit: Flexible voltage regulation and straightforward field adjustments to match system requirements. Application: Systems requiring precise voltage tuning for motors and process equipment.
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FAQs
This unit is a floor or wall-mounted, upright-only transformer with a NEMA 2 enclosure designed for indoor use. Plan for vertical clearance, adequate ventilation, and compatible mounting supports for the 942SD frame. Ensure wiring connections follow 280BPB configurations and that the primary MCCB rating aligns with system short-circuit current and protection coordination.
The transformer provides 45 kVA three-phase power with a 480 V primary and a 208Y/120 V secondary. It operates at 60 Hz with a temperature rise of 80 °C, uses copper windings, and includes a primary MCCB (JGE3070FAGC) for integrated protection. Tap settings are 2 at +2.5% and 4 at -2.5% to tune voltage as needed.
Yes, the unit uses a NEMA 2 enclosure and copper windings rated for 80 °C rise, with a robust 942SD frame and WS66 weather-shield option. While intended for indoor protection, the WS66 option provides enhanced environmental resilience in facilities with dust, humidity, or temperature variation, ensuring dependable operation in demanding manufacturing or processing lines.
This transformer is UL Listed and DOE 2016 Efficient compliant under 10 CFR Part 431, indicating energy efficiency and safety conformance. The UL listing supports electrical protection and traceability, while the DOE efficiency designation helps reduce energy consumption across duty cycles typical in continuous operation environments.
Combining a transformer with an integrated MCCB reduces wiring, short-circuit protection coordination, and cabinet space, which lowers installation time and maintenance overhead. Energy efficiency under DOE 2016 further reduces operating costs. Regular checks should focus on enclosure integrity, insulation condition, tap position accuracy, and MCCB operation to sustain performance.