Eaton Z12N11E05CUSS4X Hazardous Transformer - NEMA 4X
Part Number: Z12N11E05CUSS4X
Quick Summary
Eaton Hazardous location encapsulated transformer delivers safe, reliable power isolation for equipment operating in Class I Division 2 environments. In hazardous locations, moisture, dust, and explosive atmospheres challenge standard transformers, increasing downtime and safety risk. It combines Class 1 Division 2 protection with a rugged NEMA 4X enclosure and an EPZ copper-coil design to withstand harsh conditions while minimizing maintenance. The three-phase, 5 kVA unit provides a 120 V primary and 120/240 V secondary, making it an ideal fit for compact control panels and motor starters in petrochemical, mining, and chemical processing facilities. By leveraging this transformer, you can improve uptime, simplify compliance, and reduce long-term ownership costs while preserving performance.
Product Information
Extended Description
Z12N11E05CUSS4X Eaton: Eaton Hazardous location encapsulated transformer, class 1 division 2 groups a b c and d hazardous location transformer, EPZ, copper, NEMA 4X, 60 Hz, three-phase, 120 V, 120/240 V, None, 150 °C rise, 5 KVA, indoor-outdoor
Product Name
Eaton Hazardous location encapsulated transformer
Catalog Number
Z12N11E05CUSS4X
UPC
786680096464
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 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
Contact Manufacturer
Catalog Notes
NEMA 4X Grade 304 stainless steel enclosure.
Special features
Electrostatically shielded
Type
Class 1 Division 2 Groups A B C & D Hazardous Location Transformer
Coil material
Copper
Frequency rating
50/60 Hz
Phase
Three-phase
Primary voltage
120 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
Design
EPZ
Enclosure
NEMA 4X
Tap size
None
Volt ampere rating
5 kVA
Weathershield
Indoor-Outdoor
Electrostatically shielded construction helps minimize EMI and stray capacitance, protecting sensitive control electronics in harsh environments. The result is improved signal integrity and safer operation for personnel handling high-energy equipment. In practice, this translates to fewer nuisance trips and more predictable performance in chemical plants and refineries. EPZ design combines efficient cooling and protection in a compact footprint, enabling reliable operation in restricted spaces. This reduces heat-related derating and extends service life, lowering maintenance costs for hazardous-location power distribution. Ideal for panel boards and switchgear where space is at a premium. Copper winding delivers high electrical efficiency and robust thermal performance during rapid load changes, with durable long-term reliability in dusty or humid environments. The copper coil also supports consistent voltage regulation, reducing downstream equipment stress and extending motor life in critical processes. NEMA 4X enclosure provides superior moisture, dust, and corrosion resistance, enabling safe indoor-outdoor installation in challenging environments. The enclosure, forged from stainless steel per catalog notes, helps meet enclosure integrity requirements while enabling audits and inspections with confidence. Five kilovolt-ampere capacity with a three-phase configuration and inputs of 120 V to 120/240 V supports modest to moderate loads in control panels and distribution systems. The fixed voltage design simplifies installation and reduces parts count, while the 50/60 Hz compatibility ensures compatibility with global infrastructure. Weathershield indoor-outdoor capability and NEMA 4X protection provide durable service in varying climates—from cleanrooms to outdoor enclosures—without sacrificing performance.
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FAQs
For safe and compliant installation, mount the unit in a protected, yet accessible space, using the NEMA 4X enclosure designed for indoor-outdoor use. Ensure wiring follows Class I Division 2 guidelines, use appropriate wiring methods in shielded environments, and verify mounting hardware compatibility with EPZ designs to maintain enclosure integrity and heat dissipation.
The transformer is 5 kVA, three-phase, with a 120 V primary and a 120/240 V secondary. It operates at 50/60 Hz and features a 150 °C rise. Copper windings provide high efficiency and reliable performance under varying loads, with no taps required for standard operation.
Yes. It is designed for Class I Division 2 environments and uses a NEMA 4X enclosure, making it suitable for hazardous control panels in petrochemical, mining, and related industries. The EPZ design and copper winding support stable voltage and durable operation in challenging conditions.
Certifications are listed as Contact Manufacturer, with the device rated for Class I Division 2 and protected by a NEMA 4X enclosure. For formal certification documentation (UL/CSA/IEC marks), contact Eaton directly to obtain the latest certificates and test reports relevant to your installation location.
The robust NEMA 4X enclosure, epoxy EPZ design, and copper windings reduce corrosion, heat-related derating, and EMI-related downtime. This translates to lower maintenance costs, longer service intervals, and improved uptime for critical loads, delivering a favorable total cost of ownership in hazardous-area applications.