Eaton NT29M23B37CUEE Transformer - UL Listed
Part Number: NT29M23B37CUEE
Quick Summary
Eaton NT29M23B37CUEE Transformer is a K-Factor nonlinear ventilated transformer engineered for rugged power distribution in industrial environments. Engineers often struggle with heat buildup, voltage distortion, and space constraints in electrical rooms, making reliable transformer performance a persistent challenge. UL Listed, NEMA TP-1 compliant, and NEMA TP-1 efficient, this unit meets safety and efficiency standards while helping facilities reduce cooling energy and footprint. Designed as a single-phase, 37.5 kVA solution with copper windings and electrostatic shielding, it integrates smoothly into existing panels and new builds alike. By combining robust protection with flexible taps, it supports smoother voltage regulation and easier maintenance, delivering tangible business value in automation, data centers, and manufacturing facilities.
Product Information
Extended Description
NT29M23B37CUEE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (1-phase), PV 208V, Taps: 2 at +2.5% /4 at -2.5%, 80°C rise, 37.5 kVA, Copper windings, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT29M23B37CUEE
UPC
786680083013
Product Length/Depth
23.84 in
Product Height
42.03 in
Product Width
24.22 in
Product Weight
930 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.
Compliances
NEMA TP-1 Compliant
Certifications
UL Listed
Catalog Notes
NEMA TP-1 efficient
Coil material
Copper
Frame
820
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
37.5 kVA
Phase
Single-phase
Primary voltage
208 V
Secondary Voltage
230 V
Temperature rise
80 °C rise
Special features
Electrostatically shielded
Weathershield
WS16
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - NT29M23B37CUEE
The K-Factor nonlinear ventilated design improves harmonic handling and thermal performance, reducing overheating risk and cooling energy needs while boosting uptime. This foundation helps facilities maintain stable voltages under variable loads and minimizes derating in crowded electrical rooms. The 37.5 kVA rating with a 208 V primary and 230 V secondary provides a compact yet capable power backbone for mid-size loads, enabling tighter panel layouts and easier field upgrades in automation cells and manufacturing lines. Copper windings deliver high conductivity and resilience to thermal cycling, translating to lower I2R losses and improved long-term reliability in demanding service. Taps at +2.5% and -2.5% allow precise voltage regulation to match site conditions, reducing voltage swell or sag and minimizing nuisance trips in critical panels. An 80 °C rise rating, electrostatic shielding, and WS16 weather protection offer robust thermal tolerance and EMI/RFI suppression, supporting outdoor or demanding indoor installations while meeting NEMA TP-1 and UL expectations. These features harmonize with Eaton's Transformer Flex Center and broader power management ecosystem to streamline installation, maintenance, and future expansion.
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FAQs
Yes. The NT29M23B37CUEE is a 208 V primary / 230 V secondary, single-phase transformer designed to integrate with standard 208 V distribution panels. Its 60 Hz operation and copper windings support reliable panel mounting, while the +2.5% and -2.5% taps permit site-specific voltage adjustments. When planning installation, verify clearance for the 23.84 in length, 24.22 in width, and 42.03 in height, and ensure compatibility with UL-listed safety requirements.
K-Factor nonlinear design indicates the transformer is optimized to handle non-linear loads and harmonic currents with controlled losses. This reduces temperature rise and improves overall efficiency under harmonic-rich conditions. For data centers or automation panels with switching power supplies, the NT29M23B37CUEE maintains voltage regulation, limits derating, and supports longer component life while staying within NEMA TP-1 and UL safety expectations.
Yes. With 37.5 kVA, 208 V to 230 V voltage, copper windings, and robust heat management, the NT29M23B37CUEE is well-suited for automation panels and mid-size data center enclosures. Its compact footprint, precise taps for voltage regulation, and electrostatic shielding help maintain clean power delivery in sensitive equipment while meeting critical safety certifications for industrial environments.
The NT29M23B37CUEE is UL Listed and NEMA TP-1 Compliant, with NEMA TP-1 efficiency notes. It also features an 80 °C rise rating, copper windings, and electrostatic shielding, which collectively support compliant, efficient operation in demanding industrial settings and panel installations.
The transformer’s copper windings, robust cooling design, and electrostatic shielding contribute to lower thermal stress and longer service life, reducing maintenance intervals and unplanned downtime. In facilities with harmonic loads, improved efficiency and reduced cooling requirements translate to measurable energy savings and a shorter payback period, particularly where space constraints necessitate compact, reliable power backbones.