Eaton XTT3F9X-50C Dry-Type Transformer - 4X Hazardous
Part Number: XTT3F9X-50C
Quick Summary
The Eaton XTT3F9X-50C Dry-Type Transformer provides reliable three-phase power conversion for hazardous-area applications. Engineers often struggle with safety, space constraints, and complex compliance when selecting transformers for harsh environments. This unit meets NEC/CEC standards, carries Class I, Division 2 hazardous rating, and a NEMA 4X enclosure for rugged reliability. The resin-encapsulated design with copper windings and a 50°C ambient rating supports durable performance in demanding automation and power-distribution settings. With a 9 kVA rating, 480 Vac primary, and 400Y/231 Vac secondary output, it aligns with common panel and switchgear configurations. Its 316 stainless steel construction enhances corrosion resistance, delivering long-term value for industrial facilities.
Product Information
Extended Description
XTT3F9X-50C Eaton Crouse-Hinds: Eaton Crouse-Hinds series XTT dry-type transformer, 60 Hz, 9 kVA, 316 stainless steel, Three-phase, 480 Vac primary voltage, 400Y/231 Vac secondary voltage, Copper windings, 50°C ambient, Resin encapsulated
Product Name
Eaton Crouse-Hinds series XTT dry-type transformer
Catalog Number
XTT3F9X-50C
UPC
662276963184
Product Length/Depth
22.38 in
Product Height
17.25 in
Product Width
13.88 in
Product Weight
300 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
400Y/231 Vac
Frequency rating
60 Hz
Material
316 stainless steel
Special features
Copper windings, 50°C ambient
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 Canadian certification
XDT and XTT Hazardous Area Transformers Canadian certification
IF XDT - XDT Series Hazardous Area Transformers
Eaton Specification Sheet - XTT3F9X-50C
Eaton Specification Sheet - XTT3F9X-50C
Feature: Resin-encapsulated construction provides a robust barrier against moisture and dust, reducing field failures and maintenance costs. Business Impact: Improves uptime and lowers service costs in harsh environments. Application: Ideal for Hazardous/Classified Locations in chemical plants and remote facilities. The design also simplifies inspections and traceability. Feature: 316 stainless steel enclosure delivers corrosion resistance, enabling longer service life in damp or dusty environments. Business Impact: Extends equipment life and reduces total cost of ownership. Application: Suitable for washdowns and aggressive industrial settings. Feature: Copper windings enhance electrical efficiency and thermal performance, supporting reliable load handling. Business Impact: Improves efficiency and reduces energy losses in continuous operation. Application: Critical for automation panels and power distribution networks. Feature: Resin encapsulation plus 50°C ambient rating enables rugged operation in elevated temperatures. Business Impact: Expands installation options and lowers risk of insulation degradation. Application: Plants with high ambient heat or restrictive enclosures. Feature: Three-phase, 9 kVA, 480 Vac primary and 400Y/231 Vac secondary output aligns with standard industrial power systems. Business Impact: Streamlines integration with existing switchgear and MCCs, reducing design time. Application: Modern manufacturing lines and control panels seeking reliable step-down or isolation. Feature: NEC/CEC compliance, Class I Division 2 rating, and NEMA 4X enclosure provide regulatory peace of mind. Business Impact: Eases audits, improves safety compliance, and ensures suitable protection in hazardous locations. Application: Utilities, chemical plants, and heavy industry installations needing robust certification alignment.
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FAQs
The XTT3F9X-50C is designed for Class I, Division 2 environments with NEC/CEC compliance and a NEMA 4X enclosure. When installing, verify ambient temperatures up to 50°C, secure mounting in a clean, dry cabinet, and allow adequate clearance for ventilation. Use appropriate cable entries rated for hazardous areas, and follow manufacturer instructions for wiring and servicing to minimize heat buildup.
This transformer provides 9 kVA with a 480 Vac primary and a 400Y/231 Vac secondary, three-phase, at 60 Hz. It features copper windings and resin encapsulation for durability and moisture resistance. It is designed to integrate with standard 480 V distribution schemes while offering a balanced 231 V secondary for control circuits in industrial panels.
Yes. The XTT3F9X-50C is compatible with common panel boards and switchgear used in automation. Its 480 Vac primary aligns with typical industrial power rails, and the 400Y/231 Vac secondary suits MCCs and control wiring. The resin-encapsulated design reduces enclosure leaks, and the 316 stainless steel body provides corrosion resistance in challenging manufacturing environments.
The transformer carries NEC/CEC compliance, a Class I Division 2 hazardous rating, and a NEMA 4X enclosure. Area classification confirms suitability for hazardous and classified locations, while the protective enclosure supports ingress sealing against moisture and dust. These certifications simplify regulatory approvals, support safe operation, and streamline documentation for audits.
Investing in the XTT3F9X-50C reduces maintenance through resin encapsulation and copper windings, lowering insulation degradation and leak potential. The 50°C ambient rating expands installation options, while the corrosion-resistant 316 stainless steel enclosure improves longevity. Over its lifecycle, customers benefit from higher reliability, fewer outages, and lower total cost of ownership.