Eaton NT48M29S2116 Transformer - UL Listed 22.5 kVA
Part Number: NT48M29S2116
Quick Summary
The Eaton NT48M29S2116 transformer is a 22.5 kVA single‑phase K‑Factor nonlinear ventilated transformer optimized for 480 V to 208 V distribution in industrial facilities. It addresses the common challenge of harmonic management and overheating in dense automation panels by delivering robust cooling and waveform control. This unit is UL Listed, NEMA TP-1 compliant, and aligned with DOE 2016 Efficient standards, supporting safe, compliant operation and long-term energy performance. With its 480 V primary, 208 V secondary, and selectable taps, it enables precise voltage regulation and reliable startup in demanding environments, while providing installation flexibility and energy‑saving benefits for panel builders and OEMs in manufacturing settings.
Product Information
Extended Description
NT48M29S2116 Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (1-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 208V, 150°C rise, 22.5 kVA, 16
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT48M29S2116
UPC
786680207471
Product Length/Depth
20.36 in
Product Height
37.59 in
Product Width
22.87 in
Product Weight
372 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
DOE 2016 Efficient
Coil material
Aluminum
Frame
818
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
22.5 kVA
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
208 V
Temperature rise
150 °C rise
Special features
Electrostatically shielded
Weathershield
WS11
Feature → Business Impact → ApplicationThe transformer’s K‑Factor nonlinear ventilated design reduces harmonic currents and overheating, improving equipment life and reducing panel heat load, which translates to lower maintenance costs and longer service intervals in high‑density automation racks. This supports reliability in machine controls and packaging lines where uptime is critical. Two taps at +2.5% and four taps at -2.5% allow precise voltage regulation under fluctuating supply conditions, minimizing nuisance tripping and protecting sensitive I/O and PLC inputs on control panels used in automotive, food & beverage, and material handling applications. aluminum coil construction lowers dead weight without compromising magnetic performance, facilitating installation in retrofit projects and OEM panel builds, while frame 818 and measured dimensions ensure compatibility with common enclosures and mounting footprints. Electrostatically shielded design reduces EMI coupling, enhancing signal integrity in noisy factory floors and helping you meet stringent electrical noise standards during commissioning. DOE 2016 Efficient labeling confirms energy-conscious design, offering tangible operating cost reductions over the transformer’s lifetime in constant‑load applications such as conveyor drives and robot cells. Weathershield WS11 enables outdoor or semi‑outdoor installations, expanding site options for palletizers, pick-and-place systems, and outdoor automation enclosures. With UL listing and NEMA TP‑1 compliance, this transformer supports procurement and compliance workflows, while its 22.5 kVA rating aligns with mid‑scale panel builds and distribution substations, enabling scalable plant expansions without re‑engineering power rails.
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FAQs
The NT48M29S2116 is a 22.5 kVA, single‑phase unit with a frame 818 and dimensions of 20.36 in (L) × 37.59 in (H) × 22.87 in (W). It weighs 372 lb and uses an aluminum coil. For installation, ensure a stable base, adequate clearance for cooling, and compatibility with 480 V primary / 208 V secondary wiring. The WS11 Weathershield supports outdoor or semi‑outdoor environments, and the unit carries UL Listed and NEMA TP‑1 compliance for safe, compliant installation.
This transformer is UL Listed, NEMA TP‑1 compliant, and DOE 2016 Efficient. UL Listing confirms safety and reliability for electrical installation, NEMA TP‑1 ensures compliance with transformer performance under thermal and load conditions, and DOE 2016 Efficient designation denotes energy efficiency. Together, they streamline procurement, reduce risk during audits, and support energy‑saving goals in industrial facilities.
The dual taps provide voltage regulation to compensate for supply swings, maintaining stable 208 V secondary output when the 480 V primary fluctuates. This minimizes under‑/over‑voltage stress on downstream controls and relays, reducing nuisance trips and extending equipment life in automated conveyors, robots, and packaging lines where power quality varies.
Yes, the WS11 Weathershield option supports outdoor or harsh environments, enabling installation in weather‑exposed locations such as external motor control centers or unmanned yards. Combined with electrostatic shielding and robust ventilation, the unit maintains performance in factory yards, loading docks, or semi‑indoor spaces subject to temperature and humidity variations.
DOE 2016 Efficient designation indicates optimized losses, yielding lower no‑load and load losses over the transformer's life. While exact ROI depends on load profile, typical mid‑volume installations with constant load can see measurable energy cost reductions, reduced heat load, and lower cooling requirements, contributing to shorter payback periods in continuous operation scenarios such as automated lines and material handling systems.