Eaton Z20N11S03A Hazardous location encapsulated transformer - UL Listed
Part Number: Z20N11S03A
Quick Summary
Eaton Hazardous location encapsulated transformer delivers safe, reliable power isolation for Class I Division 2 locations in demanding industrial settings. In hazardous areas, traditional transformers can spark downtime, corrosion, or maintenance headaches that drive costs and risk. This model carries UL Listed status, a NEMA 3R enclosure, and an EPZ design to protect both equipment and personnel in harsh environments, including Groups C and D. The 3 kVA, single-phase unit accepts 240/480 V inputs and provides 120/240 V outputs, enabling compact control panels and local drives. By combining rugged construction with precise voltage conversion, it supports safer installations, shorter lead times, and lower total cost of ownership for hazardous-location power distribution.
Product Information
Extended Description
Z20N11S03A Eaton: Eaton Hazardous location encapsulated transformer, class 1 division 2 groups c and d, hazardous location transformer, EPZ, aluminum, NEMA 3R, 176H, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 115 °C rise, 3 KVA, indoor-outdoor
Product Name
Eaton Hazardous location encapsulated transformer
Catalog Number
Z20N11S03A
UPC
786680099670
Product Length/Depth
8.03 in
Product Height
14.47 in
Product Width
12.5 in
Product Weight
80 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
Catalog Notes
Model A
Type
Class 1 Division 2 Groups C and D, Hazardous Location Transformer
Coil material
Aluminum
Frequency rating
50/60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Design
EPZ
Enclosure
NEMA 3R
Frame
176H
Tap size
None
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application. Class 1 Division 2, Groups C and D rating provides proven safety for hazardous locations, reducing ignition risk and regulatory concerns while enabling compliant power distribution in oil, gas, and chemical facilities. EPZ design and encapsulated construction improve insulation reliability and temperature performance, delivering consistent operation at a 115 °C rise and extending transformer life under elevated ambient conditions—ideal for hot, demanding plant rooms and outdoor cabinets. NEMA 3R enclosure and Weathershield Indoor-Outdoor capability enable outdoor or damp-location installation without additional protective enclosures, lowering installation time and total cost of ownership for municipal plants, refineries, and mining sites. Aluminum coil reduces weight and improves corrosion resistance, supporting easier handling and long-term material savings in rugged environments. 240/480 V primary with 120/240 V secondary and a 3 kVA rating deliver flexible power for control panels, lighting, and instrumentation. A compact 176H frame and 80 lb weight enable space-efficient mounting in tight electrical rooms or weatherproof enclosures, while UL Listed certification and Eaton’s warranty provide confidence in ongoing maintenance and compliance.
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FAQs
The Z20N11S03A is a Class I Division 2 encapsulated transformer that converts 240/480 V primary to 120/240 V secondary at 3 kVA, suitable for hazardous-area power distribution in oil, gas, and chemical facilities with a safe, compact footprint.
Yes. It is UL Listed and rated for Class I Division 2, Groups C and D, with an EPZ design and NEMA 3R enclosure to support safe operation in hazardous environments.
Primary voltages are 240 V and 480 V, while the secondary voltage is 120/240 V. The unit operates at 50/60 Hz and has a 3 kVA rating in a single-phase configuration.
Yes. The enclosure is NEMA 3R and designed for indoor-outdoor use, offering protection in outdoor or damp locations without requiring additional enclosures.
Eaton offers a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first, providing support and service options for ongoing reliability.