Eaton Z48D28B15CU Hazardous Location Encapsulated Transformer - Class 1 Division 2
Part Number: Z48D28B15CU
Quick Summary
Eaton Z48D28B15CU Hazardous Location Encapsulated Transformer powers reliable three‑phase distribution in Class I Division 2 facilities. In hazardous environments, downtime and maintenance costs erode uptime, so equipment must combine protection with efficient power transfer. UL Listed with Class I Division 2, Groups C and D, and a NEMA 3R enclosure provides rugged, code‑compliant performance for indoor‑outdoor installations. Designed for industrial automation and process control, this transformer helps reduce total cost of ownership while ensuring safety and regulatory compliance. Its copper windings, 15 kVA rating, and 480 V to 208Y/120 V outputs support versatile control panels and field devices with minimal voltage drop.
Product Information
Extended Description
Z48D28B15CU Eaton: Eaton Hazardous location encapsulated transformer, class 1 division 2 groups c and d, hazardous location transformer, EPTZ, copper, NEMA 3R, 243 H, 60 Hz, three-phase, 480 V, 208Y/120 V, 2 at +2.5% FCAN, 2 at -2.5% FCBN, 80 °C rise
Product Name
Eaton Hazardous location encapsulated transformer
Catalog Number
Z48D28B15CU
UPC
786685355030
Product Length/Depth
12.76 in
Product Height
26.58 in
Product Width
25.15 in
Product Weight
624 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
Copper
Frequency rating
50/60 Hz
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
80 °C rise
Design
EPTZ
Enclosure
NEMA 3R
Frame
243H
Tap size
2 at +2.5% FCAN, 2 at -2.5% FCBN
Volt ampere rating
15 kVA
Weathershield
Indoor-Outdoor
Wiring connection
65H
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - Z48D28B15CU
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application. Class 1 Division 2 encapsulated construction with EPTZ protection delivers safe operation in hazardous areas. This design reduces ignition risk and simplifies installation in process plants, refineries, and offshore facilities. Copper windings provide low resistance and efficient heat dissipation, improving overall transformer efficiency under variable loads. In practice, that means cooler operation, lower energy losses, and longer service life for critical control circuits. With a 15 kVA rating and three‑phase 480 V primary to 208Y/120 V secondary, it supports common plant voltages and scalable distribution for motor controllers and PLC power supplies. The dual voltage taps at +2.5% FCAN and −2.5% FCBN enable precise voltage regulation as loads shift, reducing equipment stress and voltage drop in sensitive instrumentation. NEMA 3R enclosure and Weathershield indoor‑outdoor capability provide rugged protection for both indoor and outdoor installations, reducing the need for extra enclosures and simplifying field wiring. The compact footprint—25.15 in wide, 26.58 in high, 12.76 in deep—and weight of 624 lb support straightforward mounting in standard industrial panels and retrofit projects. Warranty coverage of one year from installation (or 18 months from shipment) adds business certainty for maintenance planning and uptime protection.
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FAQs
Installers should verify Class 1 Division 2, Groups C and D compliance and mount the unit within a NEMA 3R enclosure suitable for indoor-outdoor use. Ensure proper ventilation, clearance for heat dissipation, and secure mounting on a compatible surface. Use the 65H wiring connection and observe voltage tap settings during commissioning to minimize losses and voltage drop.
The transformer delivers 15 kVA with a 480 V primary and 208Y/120 V secondary in a three-phase configuration, operating at 50/60 Hz. Copper windings improve efficiency and thermal performance. These specs support standard industrial control panels and PLCs, enabling reliable, panel‑mounted power distribution with stable secondary voltages.
Yes. With Class I Division 2 classification, Groups C and D, UL Listing, and a NEMA 3R enclosure, the unit is designed for hazardous locations commonly found in oil & gas, chemical processing, and mining. The rugged enclosure and encapsulated construction minimize ignition risks and withstand harsh ambient conditions typical of these industries.
The transformer is UL Listed and rated for Class I Division 2, Groups C and D. Its NEMA 3R enclosure provides weatherproof protection for indoor-outdoor use, and the EPTZ design supports reliable operation in demanding environments. These certifications help streamline approval processes for regulated facilities.
Eaton offers a warranty of one year from installation or eighteen months from shipment, whichever occurs first. This coverage reduces risk for uptime-critical applications and supports longer intervals between major maintenance cycles, contributing to lower total cost of ownership and faster ROI when deployed in continuous‑operation environments.