Eaton NT29R23B37CUEE Transformer - UL Listed, NEMA TP-1
Part Number: NT29R23B37CUEE
Quick Summary
Eaton NT29R23B37CUEE nonlinear ventilated transformer provides reliable power conversion for 208 V systems in control panels and power distribution racks. Engineers often face heat buildup, voltage drift, and downtime from undersized or poorly cooled devices. UL Listed and NEMA TP-1 compliant status ensures safety and reliability, while the catalog notes highlight NEMA TP-1 efficiency. Designed for practical, real-world installations, this transformer combines copper windings, a 60 Hz single-phase design, and a 37.5 kVA rating to support dense panel schedules. Its robust yet compact footprint supports faster installation, easier cooling, and long-term operating efficiency for industrial automation, material handling, and process control systems. Secondary considerations include electrostatic shielding and weather protection via WS16 for versatile indoor or outdoor use.
Product Information
Extended Description
NT29R23B37CUEE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (1-phase), PV 208V, Taps: 1 at +5%/2 at -5%, 80°C rise, 37.5 kVA, Copper windings, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT29R23B37CUEE
UPC
786680083006
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
Copper
Frame
820
Tap size
1 at +5% FCAN, 2 at -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 - NT29R23B37CUEE
Feature → Business Impact → Application: The NT29R23B37CUEE uses copper windings for lower resistance and reduced I2R losses, delivering improved efficiency and cooler operation in demanding panels. This translates to higher reliability and reduced energy costs in continuous-running applications like packaging lines or robotics cells. Application is simplified by a single-phase 60 Hz design with a 208 V primary and 230 V secondary, ensuring straightforward integration into existing control cabinets and MCCs. Feature → Business Impact → Application: The 37.5 kVA rating provides ample headroom for nonlinear loads, minimizing voltage sag and avoiding nuisance trips in CNC machines or hoists. Application: metal stamping lines, material handling conveyors, and batch reactors benefit from stable power delivery and reduced downtime. Feature → Business Impact → Application: The +5% and -5% taps (1 at +5, 2 at -5) support voltage fine-tuning during commissioning, speeding up commissioning time and improving load performance. Application: panel builders and system integrators configuring multiple feeders. Feature → Business Impact → Application: Copper coil construction and an 80 °C rise rating enable safer, durable operation in enclosed spaces, with predictable thermal margins for dense installations. Application: electrical rooms and service entrances. Feature → Business Impact → Application: Electrostatic shielding and WS16 weather shield offer enhanced protection against EMI and environmental exposure, expanding use cases to include partially outdoor or humid environments. Application: outdoor-ready control houses and weather-protected switchgear.
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FAQs
Plan for a single-phase 60 Hz installation with a 37.5 kVA load, ensuring adequate clearance for ventilation and the WS16 weather shield if used outdoors. The device uses copper windings and a frame 820, with a depth of 23.84 in, width 24.22 in, and height 42.03 in. Use the +5% and -5% taps to fine-tune voltage during commissioning.
The K-Factor nonlinear design minimizes distortion and heating when feeding nonlinear loads, while copper windings reduce I2R losses. The transformer is designed for 60 Hz operation, 208 V primary and 230 V secondary, with an 80 °C rise and electrostatic shielding, delivering stable voltage and improved reliability in nonlinear automation circuits.
This model is UL Listed and compliant with NEMA TP-1. Catalog notes also describe it as NEMA TP-1 efficient, reinforcing energy performance and safety in industrial environments. These certifications support compliance with common electrical codes in control panels and distribution equipment.
Ideal for control panels, MCCs, and machine controls that require reliable 208/230 V power in a compact form factor. The 37.5 kVA rating handles moderate nonlinear loads with 1 at +5% and 2 at -5% taps for voltage precision. The WS16 weather shield and electrostatic shielding expand use in adverse environments.
Warranty follows Eaton policy 25-000: one year from installation or 18 months from shipment, whichever occurs first. Support includes access to Eaton’s Transformer Flex Center and the specification sheet for installation guidance and application notes, helping maintain uptime and optimize ROI across panel builds.