Eaton X48M28T33CUEEPOS Harmonic Transformer - UL Listed
Part Number: X48M28T33CUEEPOS
Quick Summary
The Eaton Harmonic Transformer X48M28T33CUEEPOS delivers harmonic mitigation for 480V three-phase distribution in commercial PV and industrial plants. Engineers often battle distorted power, overheating, and equipment wear from non-linear loads. UL Listed, NEMA TP-1 compliant, and NEMA TP-1 efficient certifications ensure safety, performance, and regulatory compliance. Designed as a dry-type distribution solution with copper windings, it supports reliable operation in demanding environments while integrating 480V primary and 208Y/120V secondary outputs for streamlined panel design. With a 300 kVA rating, copper windings, and a rugged frame, this transformer offers scalable power management and easy installation for modern facilities. Its 150 °C rise rating supports stable operation in high-temperature environments.
Product Information
Extended Description
X48M28T33CUEEPOS Eaton: Eaton Harmonic mitigating transformer, PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 208Y/120V, 150°C rise w/ 200°C insulation systeam, 300 kVA, Copper windings, EE, POS
Product Name
Eaton Harmonic mitigating transformer
Catalog Number
X48M28T33CUEEPOS
UPC
786680030215
Product Length/Depth
36.23 in
Product Height
75 in
Product Width
44.2 in
Product Weight
3569 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
NEMA TP-1 Compliant
Certifications
UL Listed
Catalog Notes
NEMA TP-1 efficient
Coil material
Copper
Frame
919X
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Dry Type Distribution Transformer
Wiring connection
201X
Frequency rating
60 Hz
Phase
Three-phase
Phase shift
15 °
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
150 °C rise
Volt ampere rating
300 kVA
Special features
Electrostatically shielded
Weathershield
WS35
Feature: Harmonic mitigating transformer reduces current distortion and voltage distortion caused by non-linear loads, delivering cleaner power to drives, inverters, and motors. Business impact: lower harmonic losses, cooler operation, extended life for downstream equipment, and improved Power Quality metrics that support reliability and uptime. Application: ideal for PV systems, data centers, and manufacturing lines with mixed non-linear loads. Feature: Dry-type copper-wound construction provides durable insulation and safer indoor installation with no oil. Business impact: lower fire risk, easier maintenance, and safer handling during service, while meeting stringent safety standards. Application: suitable for enclosed switchgear rooms, control panels, and retrofit projects where oil-filled transformers aren’t feasible. Feature: Primary 480 V and secondary 208Y/120 V outputs offer flexible distribution from a single unit. Business impact: simplifies downstream panel design, reduces number of transformers required, and improves coordination with MCCs and BKR panels. Application: panel boards, motor control centers, and mixed-voltage distribution in industrial facilities. Feature: Tap changer with 2 taps at +2.5% and 4 taps at -2.5% taps enables precise voltage regulation under load swings. Business impact: maintains voltage within tolerance, improves efficiency, and minimizes equipment stress. Application: sites with voltage fluctuation due to solar interconnection or start-up transients. Feature: 150 °C rise rating and 300 kVA nominal rating underpin robust performance in demanding environments. Business impact: supports scalable power distribution, handles startup surges, and reduces the need for midlife replacements. Application: medium-scale industrial plants, commercial facilities with high non-linear loads. Feature: Electrostatically shielded construction and Weathershield WS35 provide protection from EMI and environmental exposure. Business impact: improved reliability in outdoor or harsh spaces, easier compliance with outdoor or semi-outdoor installations. Application: outdoor equipment rooms, substations, and harsh industrial environments.
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FAQs
This transformer excels in industrial facilities, commercial PV sites, and data centers where non-linear loads cause power quality issues. It mitigates harmonic distortion, improves efficiency, and protects sensitive drives and motors while delivering a robust 300 kVA rating and a reliable 480 V to 208Y/120 V secondary configuration.
The unit provides taps at +2.5% (2 positions) and -2.5% (4 positions) to compensate feeder voltage swings. This enables tighter voltage regulation under variable load, reduces voltage drop on long feeders, and improves performance for solar interconnection or heavy startup transients.
Yes. The X48M28T33CUEEPOS is UL Listed and NEMA TP-1 compliant, with NEMA TP-1 efficiency ratings. This reduces procurement risk and supports compliance with safety and efficiency standards applicable to industrial and commercial installations.
Although designed as a dry-type unit for indoor or protected spaces, it features electrostatic shielding and WS35 weather shield for enhanced outdoor or semi-outdoor reliability. It also tolerates high temperature operation up to 150 °C rise, making it suitable for challenging environments when properly housed.
Copper windings and a rugged frame reduce insulation failure risk and maintenance needs, improving motor and drive longevity. The harmonics reduction and efficient operation lower energy losses, contributing to a favorable return on investment through longer service life and reduced downtime.