Eaton Z48G28E45CU Transformer - Class I Div 2
Part Number: Z48G28E45CU
Quick Summary
Eaton Z48G28E45CU Transformer delivers rugged power for hazardous-location installations in industrial facilities. Maintenance teams often struggle with safety, compliance, and downtime when selecting equipment for harsh environments. UL Listed certification and Class I Division 2 compliance provide regulatory assurance, while the NEMA 3R enclosure enables reliable indoor-outdoor installation. With 45 kVA capacity, copper windings, and a 480 V to 208Y/120 V output, this transformer balances performance and footprint. Designed to operate on 50/60 Hz systems, it supports energy efficiency goals and predictable power for sensitive controls. Its copper windings and shielded design enhance heat management and service life in challenging conditions.
Product Information
Extended Description
Z48G28E45CU Eaton: 45 kVA Class 1 Division 2 Transformer, 3PH, 480-208Y/120, shielded, Copper Windings, NEMA 3R Enclosure
Product Name
Eaton Hazardous location encapsulated transformer
Catalog Number
Z48G28E45CU
UPC
786680233104
Product Length/Depth
14.66 in
Product Height
25.5 in
Product Width
24.81 in
Product Weight
750 lb
Compliances
Class I, Div. 2, Groups A, B, C, D
Certifications
UL Listed
Type
Class 1 Division 2 Groups A, B, C and D, Hazardous Location Transformer
Coil material
Copper
Frequency rating
50/60 Hz
kVA
45 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
NEMA ST-20
Temperature rise
115 °C rise
Area classification
Hazardous/Classified Locations
Design
EPTZ
Enclosure
NEMA 3R
Frame
244H
Insulation
180 °C
Tap size
2 at -5% FCBN
Volt ampere rating
45 kVA
Weathershield
Indoor-Outdoor
Wiring connection
59A
Feature: Hazardous location encapsulation with Class I Division 2 protection. Business Impact: Enables compliant, safe operation in classified areas, reducing risk and downtime. Application: Chemical plants, oil and gas facilities, and heavy industry where safety certification matters. Feature: Copper windings and robust 45 kVA rating. Business Impact: Improves efficiency and load handling with lower losses and better thermal performance. Application: Control panels and motor start-up in demanding environments. Feature: NEMA 3R enclosure with Weathershield for indoor-outdoor use. Business Impact: Flexible installation and reduced maintenance due to weather resistance. Application: Outdoor cabinets, service entrances, and harsh facilities. Feature: 50/60 Hz three-phase design with 480 V primary and 208Y/120 V secondary. Business Impact: Simplified integration with existing power systems and downstream equipment. Application: Industrial automation, process control, and plant-wide power distribution. Feature: Tap size 2 at -5% FCBN for voltage regulation. Business Impact: Maintains output under supply variations, minimizing equipment downtime. Application: Systems with variable input voltages or long feeder runs. Feature: UL Listed, Class I Division 2 compliance and compact footprint. Business Impact: Regulatory confidence, safer installations, and easier procurement. Application: Hazardous-location projects requiring stringent certification and reliable power.
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FAQs
What to know before wiring a Z48G28E45CU: ensure the location is designated for Class I Division 2, use compliant conduit entries, and follow Eaton’s torque specs for the 59A wiring connection. The NEMA 3R enclosure and shielded design support moisture and dust resistance, while maintaining safe clearances around the transformer. Plan for compliant grounding and arc-flash awareness to optimize safety and uptime.
This unit is a three-phase transformer rated at 45 kVA with a 480 V primary and 208Y/120 V secondary, engineered for continuous operation at 50/60 Hz. Copper windings improve efficiency and thermal performance, while the Class I Division 2 protection ensures safe use in hazardous locations. It integrates with standard plant power architectures and downstream control circuits without complex adaptations.
Primary voltage is 480 V, secondary is 208Y/120 V, and the transformer supports 50/60 Hz operation. The -5% tap option (2 taps) provides voltage adjustment to compensate for supply variations along feeders. This configuration is compatible with typical control panels, MCCs, and equipment designed for 208Y/120 V control power from a 480 V feed.
The Z48G28E45CU is UL Listed and designed for Class I Division 2 hazardous locations. It features a NEMA 3R enclosure suitable for indoor-outdoor use and a shielded construction for added protection. These certifications and ratings support compliance in regulated facilities while delivering reliable power for critical equipment.
With copper windings, a rugged NEMA 3R enclosure, and a compact footprint for a 45 kVA unit, operating efficiency improves heat management and reduces energy losses. The UL Listed, Class I Div 2 design minimizes risk and regulatory concerns, translating to lower downtime, fewer repairs, and a longer service life in harsh environments. Regular inspections of connections and enclosure seals sustain reliability.