Eaton Z20N11S03CU Hazardous Location Transformer - UL Listed
Part Number: Z20N11S03CU
Quick Summary
Hazardous location encapsulated transformer is a rugged, encapsulated solution that safely powers equipment in Class I Division 2 environments. Eaton Z20N11S03CU delivers reliable voltage transformation for control panels and remote sites where ignition hazards exist. For engineers, the challenge is maintaining safety compliance while minimizing enclosure complexity and downtime in harsh plants. This unit features UL Listed certification, an EPZ design, and a NEMA 3R enclosure to withstand indoor-outdoor service in demanding conditions. Its copper windings and 3 kVA rating support steady power delivery with tight regulation, helping you meet uptime targets while reducing wiring and space requirements. In practice, this transformer integrates with 240/480 V to 120/240 V systems, delivering dependable secondary voltages for sensitive electronics.
Product Information
Extended Description
Z20N11S03CU Eaton: Eaton Hazardous location encapsulated transformer, class 1 division 2 groups c and d, hazardous location transformer, EPZ, copper, NEMA 3R, 176H, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 115 °C rise, 3 KVA, indoor-outdoor, 3A
Product Name
Eaton Hazardous location encapsulated transformer
Catalog Number
Z20N11S03CU
UPC
786680072512
Product Length/Depth
8.03 in
Product Height
14.47 in
Product Width
12.5 in
Product Weight
85 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
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
Wiring connection
3A
Copper-wind coil and a 3 kVA rating enable efficient energy transfer with minimal voltage drop, supporting stable power for control circuits in compact installations. This translates to improved reliability, reduced maintenance, and predictable performance in panel assemblies and remote cabinets. The Class 1 Division 2 rating with EPZ design enhances safety and compliance, shortening validation cycles for hazardous locations such as chemical plants and refineries. The rugged NEMA 3R enclosure provides weather and ingress protection, enabling indoor-outdoor use without compromising integrity and uptime. A 50/60 Hz single-phase configuration matches common plant power, simplifying integration with existing distribution schemes and PLC inputs. Primary 240/480 V to secondary 120/240 V conversion delivers clean, regulated voltages for sensors, actuators, or control electronics. The compact 176H frame, 115 °C rise rating, and 85 lb weight support straightforward installation and service in space-constrained areas, reducing total installed cost and facilitating retrofits in mixed environments.
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FAQs
Installation should follow the manufacturer's guidelines for hazardous locations. Ensure the unit is mounted within the NEMA 3R enclosure, verify clearance for cooling, connect primary 240/480 V and secondary 120/240 V circuits using the 3A wiring connection, and confirm proper bonding and grounding. Use appropriate conduit seals and perform a final safety check to meet Class I Division 2 requirements.
Key specs include single-phase operation at 50/60 Hz, primary voltage options of 240 V or 480 V, secondary voltage of 120/240 V, a 3 kVA rating, copper windings, and a temperature rise of 115 °C. The transformer uses an EPZ design and is housed in a NEMA 3R enclosure for versatile installation in hazardous locations.
Yes. The unit is designed with an indoor-outdoor weather-rated construct and a NEMA 3R enclosure, making it appropriate for harsh environments where reliability and safety are critical, such as chemical plants and oil-gield operations.
It is UL Listed, certified for Class 1 Division 2 hazardous locations (Groups C and D), and employs an EPZ design in a NEMA 3R enclosure. These features support compliance with electrical safety standards in hazardous zones and provide proven protection against environmental ingress.
The robust enclosure, copper windings, and proven reliability reduce preventive maintenance and downtime. Its compact 3 kVA rating suits medium-load control circuits, while the indoor-outdoor rating lowers retrofit costs and accelerates installation, contributing to a favorable total cost of ownership over the equipment lifecycle.