Eaton NT29M11S30EE K-Factor Transformer - UL Listed
Part Number: NT29M11S30EE
Quick Summary
NT29M11S30EE is a K-Factor nonlinear ventilated transformer designed for reliable power distribution in commercial and industrial electrical systems. In practice, engineers confront voltage regulation and heat management challenges that complicate startup and uptime. UL Listed and NEMA TP-1 compliant, it delivers safety and compliance, while a 150°C rise supports dense installations. With 208 V primary and 120/240 V secondary, plus configurable taps, it enables flexible, code-compliant deployments, reducing panel footprint and energy waste. The aluminum coil and compact frame simplify installation in already crowded switchgear rooms. Weather protection via WS16 and electrostatic shielding helps maintain reliability in harsh environments. Using this transformer can lower maintenance needs and total cost of ownership across industrial automation and power distribution projects.
Product Information
Extended Description
NT29M11S30EE 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, 30 kVA, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT29M11S30EE
UPC
786680060700
Product Length/Depth
23.84 in
Product Height
42.03 in
Product Width
24.22 in
Product Weight
0.001 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
30 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 - NT29M11S30EE
Feature: K-Factor nonlinear ventilated design reduces harmonic impact and improves efficiency. Business Impact: tighter voltage regulation under nonlinear loads, lower overheating risk, and improved equipment life. Application: drives, power supplies, and other nonlinear loads in automation and manufacturing. Feature: Dual taps (+2.5%, -2.5%) provide precise voltage regulation. Business Impact: minimizes voltage drop at load peaks and adapts to supply fluctuations, reducing nuisance tripping. Application: panel upgrades and new installations in variable mains environments. Feature: 30 kVA, 208 V primary, 120/240 V secondary, 60 Hz single-phase arrangement. Business Impact: scalable capacity for compact footprints, predictable performance in dense electrical rooms. Application: machine centers, distribution panels, and light-to-medium industrial applications. Feature: Aluminum coil, Frame 819, and Weathershield WS16. Business Impact: lighter installation handling, easier cabinet integration, and protection against environmental factors. Application: retrofit or new builds in areas with space constraints or exposure to dust and moisture. Feature: Electrostatic shielding plus UL Listed and NEMA TP-1 compliant construction. Business Impact: safety, regulatory assurance, and reduced commissioning risk. Application: industrial facilities requiring compliance and reliable operation in demanding environments.
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FAQs
NT29M11S30EE fits standard low-voltage distribution panels with 208 V primary and 120/240 V secondary. It uses a compact 819 frame and measures 23.84 in depth, 42.03 in height, and 24.22 in width, which aligns with common enclosure footprints. The dual taps simplify voltage regulation during commissioning, enabling quicker, code-compliant installations.
With a 30 kVA rating and K-Factor nonlinear design, NT29M11S30EE maintains voltage regulation under harmonic currents typical of drives and switchgear. Its 60 Hz operation and aluminum windings reduce copper losses, while electrostatic shielding minimizes noise coupling. Expect improved efficiency, reduced overheating, and stable output during peak nonlinear demand in automation systems.
Yes, the transformer features WS16 weather shielding and electrostatic shielding for noise suppression, and it is UL Listed with NEMA TP-1 compliance. While not a free-standing outdoor unit, it supports outdoor installations when mounted in compliant enclosures, offering weather-resistant performance in appropriate environments.
Warranty coverage follows Eaton’s policy of one year from installation or eighteen months from shipment, whichever occurs first. Regular maintenance should focus on enclosure integrity, torqueing of connections, and ensuring adequate thermal clearance. The 150°C rise rating indicates robust cooling; verify proper ventilation and ambient conditions to maintain performance and prevent derating.
The transformer provides taps at +2.5% and -2.5% to adjust voltage under load and input fluctuations. During commissioning, set taps to balance the 208 V primary and 120/240 V secondary, minimizing regulation loss and improving efficiency. This approach reduces commissioning time and supports stable operation with variable input conditions.