Eaton T20P11F37CUN4 Transformer - UL Listed NEMA 4
Part Number: T20P11F37CUN4
Quick Summary
The Eaton T20P11F37CUN4 Transformer is a totally enclosed non-ventilated transformer designed for rugged industrial power distribution. Engineers face dust, moisture, and space constraints that threaten uptime, and this enclosure protects windings and connections in harsh environments. With UL Listed certification and a 115°C rise rating, it delivers reliable performance while meeting regulatory expectations for demanding facilities; DOE 2016 exempt status simplifies procurement. At 37.5 kVA, single‑phase operation, and a 240/480 V primary to 120/240 V secondary, it supports essential control panels and automation racks. Floor mounting and copper windings align with OEM and retrofit workflows, delivering predictable voltage conversion and a long service life for industrial applications.
Product Information
Extended Description
T20P11F37CUN4 Eaton: EATON TOTALLY ENCLOSED NON-VENTILATED TRANSFORMER, DOE 2016 EXCEMPT, COPPER, 60HZ, 37.5KVA, SINGLE PHASE, 240X480V, 120/240V, NEMA ST-20, 115°C RISE, NEMA 4, 844ANV, 220°C, 1@+5%, 2@-5% X 2@+2.5%, 4@-2.5%
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
T20P11F37CUN4
UPC
786680249471
Product Length/Depth
34.06 in
Product Height
54.63 in
Product Width
32.46 in
Product Weight
939 lb
Compliances
Not Applicable
Certifications
UL Listed
Coil material
Copper
Enclosure
NEMA 4
Frame
844ANV
Insulation
220°C
Mounting
Floor
Tap size
1@+5%, 2@-5% X 2@+2.5%, 4@-2.5%
Wiring connection
3XA
Efficiency
Exempt
Frequency rating
60 Hz
Kva Rating
37.50 kVA
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Sound Level
NEMA ST-20
Temperature rise
115 °C rise
Special features
TOTALLY ENCLOSED NON-VENTED NEMA 4 ENCLOSURE
Weathershield
Not required
Feature: Totally enclosed non-ventilated NEMA 4 enclosure provides superior protection against dust, water, and contaminants. Business Impact: Reduces maintenance costs and downtime in demanding environments. Application: Ideal for factory floors, outdoor electrical rooms, and packed control cabinets where environmental exposure is a concern. Feature: Copper windings and coil material improve electrical conductivity and heat dissipation. Business Impact: Enhances efficiency, lowers impedance, and supports reliable operation under continuous loads. Application: Suitable for medium to high-load control circuits and automation racks operating at 60 Hz. Feature: UL Listed with 115°C rise supports safety compliance and robust performance. Business Impact: Eases procurement, accelerates approvals, and minimizes risk in regulated facilities. Application: Preferred in industries with strict electrical standards and routine audits. Feature: Primary voltage options of 240 V and 480 V with secondary 120/240 V offer flexible integration. Business Impact: Simplifies interface with existing power distribution and control systems, reducing wiring complexity. Application: Fits diverse plant electrical architectures and retrofit projects. Feature: Floor mounting and 844ANV frame provide stable installation and compatibility with common mounting patterns. Business Impact: Improves site reliability and minimizes installation time. Application: Suitable for permanent installations in machine rooms, electrical closets, and equipment enclosures.
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FAQs
The T20P11F37CUN4 is designed for 240 V or 480 V primary inputs and provides a stable 120/240 V secondary output. Operating at 60 Hz, it supports typical industrial controls and automation equipment fed from these common feeders, allowing seamless integration into existing electrical architectures without additional step-down gear.
Plan for a solid, level floor support capable of handling the 939 lb weight and 54.63 in tall footprint. Provide adequate clearance for service access and cooling, and anchor per local code. Use the 3XA wiring connection and the listed tap configurations to ensure proper phase, voltage, and electrical clearance in your control cabinet or equipment room.
Yes, the unit is UL Listed, indicating compliance with safety standards for electrical devices. It is also DOE 2016 exempt, which helps simplify procurement and compliance documentation for energy-related regulations, making it a practical choice for regulated or energy-conscious facilities.
Ideal for medium-sized power needs in control panels, drives, and automation racks. The 37.5 kVA rating supports a broad range of devices, while the 240/480 V to 120/240 V windings deliver flexible, reliable control voltage. The NEMA 4 enclosure provides rugged protection in manufacturing floors, process lines, and outdoor cabinets.
Copper windings offer lower resistance and superior heat dissipation, contributing to higher efficiency and lower operating temperatures. This reduces impedance and wear on insulation, extending service life under continuous-duty loads and enabling more predictable maintenance planning for automation budgets.