Eaton Z48N28T03CU Hazardous Transformer - Class 1 Div 2
Part Number: Z48N28T03CU
Quick Summary
Eaton Z48N28T03CU is a hazardous location encapsulated transformer for rugged industrial power distribution. Operators and maintenance teams need reliable equipment that survives hazardous environments where moisture, dust, and vibration threaten life. UL Listed with a NEMA 3R enclosure and Class I Division 2 rating, it balances safety, compliance, and practical installability during routine checks. This enables faster commissioning, lower maintenance downtime, and a stronger return on investment for critical plant power distribution. Designed for 50/60 Hz three-phase operation, with copper windings and 3 kVA rating, it delivers reliable secondary 208Y/120 V output for control panels and motor starters. Compact enough to fit into standard electrical rooms yet rugged enough to withstand outdoor exposure, this transformer reduces the total cost of ownership.
Product Information
Extended Description
Z48N28T03CU Eaton: Eaton Hazardous location encapsulated transformer, class 1 division 2 groups c and d, hazardous location transformer, EPTZ, copper, NEMA 3R, 201H, 60 Hz, three-phase, 480 V, 208Y/120 V, NONE, 115 °C rise, 3 KVA, indoor-outdoor, 71A
Product Name
Eaton Hazardous location encapsulated transformer
Catalog Number
Z48N28T03CU
UPC
786685197692
Product Length/Depth
8.25 in
Product Height
13.81 in
Product Width
20.38 in
Product Weight
146 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
115 °C rise
Design
EPTZ
Enclosure
NEMA 3R
Frame
201H
Tap size
None
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Wiring connection
71A
The encapsulated design of the Z48N28T03CU is purpose-built for hazardous locations, delivering safe, compliant operation in Class I Division 2 areas. Copper-wound coils and the EPTZ design manage heat effectively, supporting continuous operation in demanding environments. UL Listed certification and a NEMA 3R enclosure mean you can install this transformer in both indoor and outdoor spaces without compromising safety, accessibility, or serviceability during routine checks. Three-phase operation at 3 kVA with a 480 V primary and 208Y/120 V secondary supports direct integration into standard plant power architectures. Copper windings offer low resistance and efficient energy transfer, reducing losses under load and improving overall transformer efficiency for critical feeders and control circuits. Indoor-outdoor versatility is reinforced by Weathershield readiness and a rugged 201H frame, enabling flexible mounting options in crowded electrical rooms or outdoor pad sites. The absence of taps simplifies commissioning while maintaining reliable voltage transformation, ensuring consistent secondary voltage for motor starters, relays, and panelboards. With a 115 °C rise rating and 50/60 Hz compatibility, this transformer remains dependable across ambient swings and loading conditions. Its Class I Division 2 hazard protection, UL Listed status, and NEMA 3R enclosure align with industry codes while supporting easier compliance audits and safer utility feeder configurations. Warranty coverage offers practical protection against early-life failures, with Eaton's policy of one year from installation or eighteen months from shipment, whichever comes first, reducing risk for procurement teams. With 480 V to 208Y/120 V transformation and a 3 kVA rating, maintenance planning becomes straightforward and ROI remains favorable in high-demand plant sections. Industry context: hazardous location transformers like this one are increasingly chosen for scalable distributed power in refineries, chemical processing, and mining operations. The Z48N28T03CU's compact footprint and straightforward installation reduce field labor and downtime during upgrades. By combining rugged protection with precise voltage transformation, it supports lean maintenance programs and improves availability for critical processes.
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FAQs
When deploying Z48N28T03CU in Class I Division 2 zones, plan for a stable mounting surface and accessible wiring for routine inspection. The unit uses a NEMA 3R enclosure and 201H frame, enabling indoor or outdoor installation without extra protective housings. With no taps and a straightforward 71A wiring connection, commissioning is fast and predictable.
Key specs include a 3 kVA rating, 480 V primary, 208Y/120 V secondary, three-phase configuration, 50/60 Hz operation, copper windings, and a 115 °C rise. The enclosure is NEMA 3R, designed for indoor-outdoor use, making it compatible with standard industrial distribution architectures.
Yes. The NEMA 3R enclosure and Weathershield readiness enable reliable operation both inside electrical rooms and in outdoor environments. Its Class I Division 2 rating supports hazardous location deployments, while UL Listed status confirms compliance with safety standards for control panels, motor starters, and distribution panels.
This transformer is UL Listed and rated for Class I Division 2 locations, with a NEMA 3R enclosure for weather resistance. The 201H frame and copper windings meet typical industrial standards, and its indoor-outdoor design supports flexible installation. Always verify local electrical codes and refinery, chemical plant, or mining sector requirements when planning your deployment.
The Z48N28T03CU reduces maintenance downtime through rugged design and reliable voltage transformation. The warranty covers one year from installation or eighteen months from shipment, whichever occurs first. With low copper losses and UL listing, lifecycle costs are lowered and uptime is improved for critical plant sections.