Eaton NT29M11S25EE Transformer - UL Listed, NEMA TP-1
Part Number: NT29M11S25EE
Quick Summary
Eaton NT29M11S25EE transformer provides reliable voltage conversion for industrial power distribution. The unit delivers stable 208 V primary and 120/240 V secondary in a single-phase, 25 kVA footprint for control panels and distribution centers. Many facilities struggle with voltage sags, harmonic heat, and unexpected outages that degrade sensitive equipment. UL Listed and NEMA TP-1 compliant, with NEMA TP-1 efficiency, this transformer supports safer operation and longer equipment life. The state-of-the-art K-Factor nonlinear design helps manage non-linear loads while the +2.5% / -2.5% taps provide precise voltage regulation under varying supply conditions. In addition, its electrostatic shielding and WS16 weathershield resistance improve reliability in challenging environments, delivering consistent performance and reducing total cost of ownership.
Product Information
Extended Description
NT29M11S25EE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (1-phase), PV 208V, Taps: 2 at +2.5% /4 at -2.5%, SV 120/240V, 150°C rise, 25 kVA, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT29M11S25EE
UPC
786680060717
Product Length/Depth
23.84 in
Product Height
42.03 in
Product Width
24.22 in
Product Weight
569 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
Aluminum
Frame
819
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
25 kVA
Phase
Single-phase
Primary voltage
208 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
Special features
Electrostatically shielded
Weathershield
WS16
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - NT29M11S25EE
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 25 kVA single-phase design rated at 60 Hz with a 208 V primary and a 120/240 V secondary. Business Impact: provides a robust backbone for control panels and feeders, enabling tighter voltage control and reducing downtime. Application: suitable for manufacturing lines, distribution centers, and machine centers requiring dependable power conditioning. Feature: Voltage taps at +2.5% and -2.5% to compensate line drop and supply fluctuations. Business Impact: maintains output within tight tolerances, minimizing nuisance tripping and component wear. Application: ideal for long feeder runs, remote sites, or facilities with variable input power. Feature: K-Factor nonlinear ventilated design handles non-linear loads and harmonics. Business Impact: lowers harmonic currents, reduces overheating, and extends transformer life. Application: drives, CNC equipment, and power-hungry controls in process environments. Feature: Electrostatic shielding with WS16 weather shield. Business Impact: minimizes EMI and enhances reliability in outdoor or harsh indoor environments. Application: outdoor substations, wash-down areas, and exposed factory floors. Feature: Compliance and efficiency — NEMA TP-1 efficient, UL Listed, and NEMA TP-1 compliant. Business Impact: reduces energy losses and ensures regulatory conformance while supporting a lower total cost of ownership. Application: panel builders, integrators, and industrial end users seeking dependable, code-compliant transformers. Feature: Mechanical and build specs — aluminum coil, frame 819, 23.84 in L, 24.22 in W, 42.03 in H, 569 lb. Business Impact: clear planning data for installation, mounting, and space allocation. Application: system integration and procurement planning for industrial facilities.
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FAQs
NT29M11S25EE is a single-phase unit with a 208 V primary and a 120/240 V secondary. Plan for standard wiring to the primary and secondary terminals, taking into account the 2 at +2.5% and 4 at -2.5% taps, which provide voltage regulation under fluctuating supply. The 23.84 in length, 24.22 in width, and 42.03 in height dimensions guide panel cutouts and mounting clearances; its aluminum winding and 569 lb weight require appropriate lifting and anchoring provisions.
The K-Factor nonlinear design analyzes and accommodates non-linear loading spectra, limiting excessive heat and harmonic currents within the transformer. This reduces temperature rise, extends insulation life, and stabilizes output voltage during heavy drive or power-electronic loads. For data processing, motor control, and other non-linear applications, this feature improves reliability and reduces maintenance costs over the life of the installation.
Yes, the NT29M11S25EE supports critical load environments typical of data centers and manufacturing equipment. With a 25 kVA rating, 208 V primary, and 120/240 V secondary, it maintains voltage stability under varying loads. UL Listed and NEMA TP-1 compliant, it also mitigates EMI thanks to electrostatic shielding, making it a solid choice for protected, compliant power distribution.
The NT29M11S25EE carries UL Listed certification and is NEMA TP-1 compliant, with NEMA TP-1 efficiency performance. It ships with a warranty of one year from installation or eighteen months from shipment, whichever occurs first. These certifications and the warranty support risk reduction and long-term service planning for industrial installations.
Maintenance advantages include reduced overheating and lower energy losses due to NEMA TP-1 efficiency, which translates to cooler operation and lower energy bills. The aluminum coil and robust enclosure support durable performance in harsh environments, while the WS16 weather shield and electrostatic shielding protect sensitive electronics. Regular checks on insulation, taps, and connections help sustain peak efficiency and reliability.