Eaton NT29M23B3716CU Transformer - K-Factor, UL Listed
Part Number: NT29M23B3716CU
Quick Summary
Eaton NT29M23B3716CU transformer provides nonlinear K-Factor ventilation for 37.5 kVA single-phase power distribution. Engineers often struggle to meet DOE efficiency targets while fitting large transformers into compact electrical rooms. UL Listed and NEMA TP-1 compliant, with DOE 2016 Efficient notes, ensure safety, reliability, and regulatory conformance across installations. Copper windings and an 80 °C rise support robust thermal performance, even in continuous duty environments. With two +2.5% and four -2.5% taps, plus 208 V primary and 230 V secondary, it offers flexible voltage configuration to minimize system downtime. At roughly 930 lb, installation planning and rigging are essential, but its 23.84 in depth by 24.22 in width footprint fits many larger panels, delivering business-ready reliability.
Product Information
Extended Description
NT29M23B3716CU Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (1-phase), PV 208V, Taps: 2 at +2.5% /4 at -2.5%, 80°C rise, 37.5 kVA, 16, Copper windings
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT29M23B3716CU
UPC
786680207655
Product Length/Depth
23.84 in
Product Height
42.03 in
Product Width
24.22 in
Product Weight
930 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
Copper
Frame
820
Tap size
2 at +2.5% FCAN, 4 at -2.5% 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
The K-Factor nonlinear ventilated design enhances heat dissipation under harmonic loads, increasing reliability in power management and distribution systems. This translates to reduced thermal stress, longer transformer life, and fewer unscheduled shutdowns in critical panels and switchgear assemblies. The 37.5 kVA single-phase rating with a 208 V to 230 V configuration provides a compact yet capable solution for mid-load feeders, helping you optimize space without compromising performance. Copper windings deliver low resistance and high current capability, which improves overall efficiency and reduces I2R losses in daily operations, contributing to lower operating costs over the asset’s life. Tap settings of 2 at +2.5% and 4 at -2.5% enable precise voltage regulation under varying load and supply conditions, minimizing nuisance trips and voltage drop in dynamic industrial environments. Compliance with UL Listed and NEMA TP-1 standards, together with DOE 2016 Efficient guidance, streamlines procurement, vendor qualification, and system integration for regulated facilities. The WS16 weather shield and electrostatic shielding features extend protection in outdoor or harsh indoor environments, reducing maintenance cycles and safeguarding performance in variable climates. Frame 820 and copper-wound construction deliver mechanical robustness and long-term serviceability, supporting faster commissioning, safer handling, and straightforward retrofits in power management and distribution architectures.
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FAQs
NT29M23B3716CU is a single-phase, 208 V to 230 V transformer rated at 37.5 kVA, with copper windings and 80 °C rise. It is UL Listed and NEMA TP-1 compliant, suitable for power management panels, switchgear, and machine rooms. For outdoor or harsh environments, WS16 weather shielding improves durability. Ensure proper rigging for its 930 lb weight and confirm available taps (+2.5% / -2.5%) during commissioning.
With dimensions of 23.84 in L/Depth, 42.03 in H, and 24.22 in W, plus a 930 lb weight, plan for adequate rigging and floor loading. The frame is 820, and the unit’s footprint fits typical large-panel housings. Allow space for ventilation, wiring access, and tap adjustment. The copper windings require careful handling to avoid damage during mounting and connections.
The NT29M23B3716CU meets UL Listed safety requirements and NEMA TP-1 compliance, with DOE 2016 Efficient notes to support energy performance targets. These certifications simplify supplier qualification, enable easier risk assessment, and reduce the need for extensive third-party approvals in regulated environments such as data centers, manufacturing floors, and critical control systems.
The transformer provides two taps at +2.5% and four taps at -2.5%, enabling precise voltage regulation under load or supply variations. This reduces voltage drop and improves equipment performance in panels and control centers, minimizing nuisance tripping and ensuring stable operation of downstream devices like drives, relays, and PLCs.
Copper windings offer high conductivity and durability, contributing to lower I2R losses and extended service life. DOE 2016 efficiency support reduces energy consumption. The combination of robust construction, official certifications, and a protective WS16 shield lowers maintenance frequency and replacement risk, delivering a favorable total cost of ownership for mid-size to large power distribution applications.