Eaton XTT3B112X Dry-Type Transformer - NEMA 4X
Part Number: XTT3B112X
Quick Summary
XTT3B112X dry-type transformer provides reliable three-phase power for hazardous locations in industrial facilities. Engineers often face enclosure corrosion, dust intrusion, and maintenance costs that drain uptime. This model meets NEC/CEC requirements and is rated for Class I, Division 2 hazardous locations, with a NEMA 4X enclosure for rugged service. Its resin-encapsulated design and copper windings promote efficient operation, strong short-circuit resistance, and long service life. With 480 Vac primary and 208Y/120 Vac secondary, it fits common facility distribution schemes, simplifying installation and spares management. For project channels covering retrofits or new builds, XTT3B112X offers a proven, compliant solution that minimizes risk and total cost of ownership.
Product Information
Extended Description
XTT3B112X Eaton Crouse-Hinds: Eaton Crouse-Hinds series XTT dry-type transformer, 60 Hz, 112.5 kVA, 316 stainless steel, Three-phase, 480 Vac primary voltage, 208Y/120 Vac secondary voltage, Copper windings, Resin encapsulated
Product Name
Eaton Crouse-Hinds series XTT dry-type transformer
Catalog Number
XTT3B112X
UPC
662276963276
Product Length/Depth
30.75 in
Product Height
25.63 in
Product Width
36.63 in
Product Weight
2253 lb
Area classification
Hazardous/Classified Locations
Standards type
NEC/CEC
NEC hazardous rating
Class I, Division 2
NEMA Rating
4X
Type
Resin encapsulated
Phase
Three-phase
Primary voltage
480 Vac
Secondary Voltage
208Y/120 Vac
Frequency rating
60 Hz
Material
316 stainless steel
Special features
Copper windings
SP3D Design Package - XDT and XTT Hazardous Area Transformers
XDT and XTT Hazardous Area Transformers Flyer
XDT and XTT Hazardous Area Transformers catalog page
XDT and XTT Hazardous Area Transformers UL certification
XDT and XTT Hazardous Area Transformers UL certification
IF XDT - XDT Series Hazardous Area Transformers
Eaton Specification Sheet - XTT3B112X
Eaton Specification Sheet - XTT3B112X
Resin-encapsulated construction provides robust windings protection against moisture, dust and vibration, reducing insulation degradation and maintenance downtime in harsh environments. This translates to higher asset availability and lower long-term operating costs for hazardous-area transformers used in chemical plants, refineries, and offshore facilities. The 316 stainless steel enclosure delivers corrosion resistance and durable exterior performance, enabling safe outdoor or wash-down deployments with minimal maintenance. Copper windings deliver high efficiency and favorable thermal performance, limiting temperature rise and cooling requirements, which supports continuous operation in high-load applications. The three-phase design at 60 Hz with 480 Vac primary and 208Y/120 Vac secondary simplifies integration with existing power distribution systems and MCCs, improving compatibility and reducing field wiring complexity. A NEMA 4X enclosure plus NEC/CEC compliance provides safety, reliability, and regulatory alignment. Field installers benefit from documented references, installation instructions, and compatibility with XDT/XTT families, streamlining retrofits and new builds.
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FAQs
For hazardous locations, ensure the installation follows NEC/CEC guidelines, provides proper clearance for cooling, and uses the NEMA 4X enclosure to protect against moisture and corrosion. Verify Class I, Division 2 compliance and install in a location rated for hazardous area transformers, with appropriate wiring methods and grounding per local codes.
XTT3B112X is a three-phase transformer with 60 Hz frequency, a 480 Vac primary voltage, and a 208Y/120 Vac secondary voltage, rated at 112.5 kVA. The device uses copper windings and a resin-encapsulated construction, housed in a 316 stainless steel enclosure suitable for demanding environments.
Yes. The XTT3B112X is designed for hazardous locations and meets NEC/CEC standards, with a hazardous location rating of Class I, Division 2. The NEMA 4X enclosure further supports compliance by providing robust protection against moisture, corrosion, and dust ingress in challenging facilities.
Maintenance focuses on ensuring enclosure integrity, inspecting for corrosion or moisture ingress, and verifying electrical connections and cooling flow. Resin encapsulation reduces moisture migration and vibration-related wear, contributing to longer intervals between routine maintenance and lower total cost of ownership in harsh environments.
Typical use cases include powering control panels and motor feeders in chemical plants, refineries, mining operations, and other facilities with hazardous classifications. The combination of 480 Vac to 208Y/120 Vac outputs, robust enclosure, and certified hazardous-location compliance makes it suitable for retrofit projects and new builds requiring reliable, safe power distribution.