Eaton Z48M28T45 Transformer - Class 1 Division 2
Part Number: Z48M28T45
Quick Summary
Hazardous location encapsulated transformer is Eaton Z48M28T45, providing safe, compliant power for Division 2 industrial zones. Plants struggle with heat, contamination, and regulatory hurdles, which drive downtime, maintenance costs, and risk to personnel. UL Listed, Class 1 Division 2 (Groups C and D), and a NEMA 3R enclosure ensure rugged performance in harsh environments. Designed for easy integration with existing power systems, it supports 480 V primary and 208Y/120 V secondary configurations, helping you optimize space and total cost of ownership while maintaining reliability for essential equipment.
Product Information
Extended Description
Z48M28T45 Eaton: Eaton Hazardous location encapsulated transformer, class 1 division 2 groups c and d, hazardous location transformer, EPTZ, aluminum, NEMA 3R, 244H, 60 Hz, 3 ph, 480 V, 208Y/120 V, 2 at +2.5% FCAN, 4 at -2.5% FCBN, 115 °C rise
Product Name
Eaton Hazardous location encapsulated transformer
Catalog Number
Z48M28T45
UPC
786680049460
Product Length/Depth
12.76 in
Product Height
26.58 in
Product Width
25.15 in
Product Weight
764 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.
Certifications
UL Listed
Type
Class 1 Division 2 Groups C and D, Hazardous Location Transformer
Coil material
Aluminum
Frequency rating
50/60 Hz
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Design
EPTZ
Enclosure
NEMA 3R
Frame
244H
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Volt ampere rating
45 kVA
Weathershield
Indoor-Outdoor
Wiring connection
84A
Class 1 Division 2 encapsulated design reduces ignition risk and simplifies compliance workflows, a clear business impact for plants handling flammable materials. In hazardous locations, this translates to safer installations and lower insurance exposure, enabling uninterrupted operation of critical equipment. Aluminum coil offers good heat dissipation and corrosion resistance with cost efficiency, supporting longer service intervals and lower lifecycle expenses. The 480 V primary to 208Y/120 V secondary arrangement with 2 taps at +2.5% FCAN and 4 taps at -2.5% FCBN enables precise voltage tuning to match load conditions, reducing voltage drop and improving downstream equipment performance. A rugged NEMA 3R enclosure paired with Weathershield protection provides indoor-outdoor reliability, simplifying installation across varied sites and keeping internal components shielded from dust and moisture. With a 45 kVA, three-phase design rated for 50/60 Hz, the transformer delivers consistent power for motors, drives, and control panels, minimizing heat buildup and downtime in demanding facilities. The model’s 244H frame and 764 lb weight balance footprint and handling requirements, while Eaton’s 25-000 warranty and UL listing, offer confidence in long-term maintenance and service planning. These features support faster procurement cycles and clearer maintenance planning for hazardous-area deployments.
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FAQs
The Z48M28T45 is designed for Class 1 Division 2, Groups C and D, making it suitable for hazardous locations. Installers should ensure the NEMA 3R enclosure is properly mounted in a protected location, verify proper grounding, and use the 244H frame’s mounting pattern for secure support. Its indoor-outdoor Weathershield capability allows flexible placement near equipment while maintaining safe operation.
Key specs include a 45 kVA rating, three-phase configuration, 480 V primary, and 208Y/120 V secondary. The transformer operates at 50/60 Hz and features taps of 2 at +2.5% FCAN and 4 at -2.5% FCBN to fine-tune secondary voltage. This enables tighter voltage control for motors and controls, reducing voltage-related performance issues and improving overall reliability.
The unit is UL Listed and certified for Class 1 Division 2 (Groups C and D). It also uses a NEMA 3R enclosure suitable for indoor-outdoor use. These standards support safe installation in hazardous environments, reduce regulatory risk, and align with common industrial procurement requirements for hazardous-area transformers.
Installation benefits include a rugged 244H frame, 764 lb weight for planned site handling, and a design optimized for quick integration with existing 480 V/208Y/120 V systems. The UL listing and Eaton warranty (one year from installation or 18 months from shipment) provide clear maintenance expectations, helping facilities plan service windows and budget for replacements less aggressively.
The transformer reduces downtime through rugged enclosure protection, precise taps for voltage stability, and reliable aluminum windings that resist corrosion. By enabling safer, compliant operation in Division 2 areas and lowering maintenance frequency, facilities achieve lower total cost of ownership and faster return on investment, especially in plants with volatile power quality or demanding duty cycles.