Eaton NT29R11S75EE Transformer - UL Listed, NEMA TP-1
Part Number: NT29R11S75EE
Quick Summary
The Eaton NT29R11S75EE transformer provides reliable power conditioning for industrial electrical distribution. Engineers often wrestle with voltage fluctuations, heat buildup, and harmonics that disrupt sensitive equipment. UL Listed and NEMA TP-1 efficient standards support regulatory compliance, while electrostatically shielded construction reduces EMI in noisy plant environments. With a 75 kVA capacity, single-phase operation, and primary taps for voltage regulation, it aligns with standard distribution panels and minimizes installation complexity. This combination delivers robust reliability for commercial and light industrial facilities, offering a predictable maintenance schedule, energy efficiency, and a compact footprint that fits typical transformer rooms and panel spaces.
Product Information
Extended Description
NT29R11S75EE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (1-phase), PV 208V, Taps: 1 at +5%/2 at -5%, SV 120/240V, 150°C rise, 75 kVA, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT29R11S75EE
UPC
786680067129
Product Length/Depth
33.97 in
Product Height
62.91 in
Product Width
29.97 in
Product Weight
921 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
821
Tap size
1 at +5% FCAN, 2 at -5% FCBN
Frequency rating
60 Hz
Volt ampere rating
75 kVA
Phase
Single-phase
Primary voltage
208 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
Special features
Electrostatically shielded
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - NT29R11S75EE
Feature → Business Impact → Application: K-Factor nonlinear ventilated design improves heat management under nonlinear loads, reducing insulation stress and extending transformer life in harmonics-rich environments. This translates to higher uptime for drives, inverters, and other non-linear loads commonly found in manufacturing and processing facilities, enabling more stable panel temperatures and less maintenance.Feature → Business Impact → Application: 75 kVA single-phase power rating with 208 V primary and 120/240 V secondary matches typical distribution panels and switchgear, enabling straightforward integration into existing electrical rooms without over-sizing or underutilization. This supports efficient load splitting, faster commissioning, and improved fault isolation in machine rooms and OEM installations.Feature → Business Impact → Application: Primary taps at +5% and −5% provide precise voltage regulation amid supply fluctuations, reducing voltage deviation at downstream devices and minimizing nuisance trips in relays and PLCs. Ideal for facilities with variable feeder voltage or long runs to critical loads like CNCs and control cabinets.Feature → Business Impact → Application: Aluminum coil construction with a rugged frame (821) and a 33.97 in x 62.91 in footprint facilitates durable installation in standard transformer rooms while keeping overall weight manageable for crane or forklift handling. This combination lowers installation risk and accelerates retrofits in retrofit projects and new builds alike.Feature → Business Impact → Application: Electrostatics shielding reduces electromagnetic interference in control panels and nearby communication lines, improving signal integrity for automation networks and protecting sensitive instrumentation in proximity to noisy equipment. Works well in modern factories with PM motors, servo drives, and robotics.Feature → Business Impact → Application: UL Listed, NEMA TP-1 compliant and efficient catalog notes provide regulatory assurance and long-term energy savings, supporting maintenance planning, procurement decisions, and warranty confidence. This is particularly valuable for capital projects and compliance-driven refits in manufacturing and data-center-adjacent facilities.
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FAQs
The NT29R11S75EE is a 75 kVA single-phase transformer with dimensions 33.97 in long, 62.91 in high, and 29.97 in wide, weighing 921 lb. It is designed for installation in typical transformer rooms alongside standard panels and switchgear. Given the weight, a crane or forklift is advised for placement, and adequate ventilation clearance should be maintained per the installation manual to ensure proper cooling and service access.
Key specs include a 75 kVA VA rating, 60 Hz frequency, primary voltage of 208 V, secondary voltage of 120/240 V, single-phase configuration, temperature rise of 150 °C, and primary taps at +5% and −5%. The coil material is aluminum, frame 821, with electrostatic shielding to reduce EMI, supporting reliable operation in mixed-load environments.
Yes. The NT29R11S75EE is a K-Factor nonlinear ventilated transformer specifically designed for nonlinear loads. Its design targets harmonic-rich environments, helping manage heat and improve reliability, which is critical for equipment like drives, inverters, and other power electronics common in modern manufacturing and automation.
This transformer is UL Listed and complies with NEMA TP-1 standards. The catalog also notes NEMA TP-1 efficiency. These certifications provide regulatory assurance, energy efficiency, and compatibility with standard electrical safety practices in commercial and industrial facilities.
Warranty terms are one year from installation or eighteen months from shipment, whichever comes first. Operational costs are influenced by its NEMA TP-1 efficiency and the robust, shielded construction. Regular maintenance should focus on ventilation clearance and periodic inspection of taps, wiring, and enclosure integrity to maximize uptime and return on investment.