Eaton N29M29B7516CU K-Factor nonlinear transformer - UL
Part Number: N29M29B7516CU
Quick Summary
The Eaton K-Factor nonlinear ventilated transformer N29M29B7516CU delivers efficient three-phase power for industrial control panels. Engineers often face heat, space constraints, and evolving energy standards when upgrading legacy transformers, and this model addresses those challenges through a combination of compact footprint, robust ventilation, and proven energy performance. It carries UL Listed certification, DOE 2016 Efficient compliance, and a rugged NEMA 2 enclosure to support safe operation in demanding environments. With copper windings, a 75 kVA rating, and a K-factor 13 profile, it delivers reliable energy efficiency, reduced heat load, and long-term cost benefits for data centers, manufacturing floors, and panel builders seeking predictable performance and easier procurement.
Product Information
Extended Description
N29M29B7516CU Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR943, 60 Hz, 220C, 75 kVA, Three-Phase, 208 to 208 DELTA, 80C rise, Shielded, DOE 2016, WS60, 295D, K13
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N29M29B7516CU
UPC
786680245220
Product Length/Depth
31.5 in
Product Height
51 in
Product Width
34.5 in
Product Weight
1112 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 2
Wiring connection
295D
Type
Energy-efficient ventilated transformer
Frame
943
Insulation
220 °C
Mounting
Floor or wall, upright only
Tap size
2 at +2.5%, 4at -2.5%
Frequency rating
60 Hz
Kva Rating
75 kVA
Volt ampere rating
75 kVA
Phase
Three-phase
Primary voltage
208 V
Secondary Voltage
208 V
Sound Level
NEMA ST-20
Temperature rise
80 °C rise
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield
Special features
K-factor 13
Weathershield
WS60
Feature: K-Factor 13 energy-efficiency design → Business Impact: Lower I2R losses and reduced cooling costs, improving total cost of ownership in constrained facilities. Application: data centers, machine rooms, and control closets needing dependable energy performance. The transformer’s 60 Hz three-phase operation supports consistent power delivery across dedicated processes and automation networks. Feature: Copper windings and 220 °C insulation → Business Impact: Higher current reliability and longer insulation life, reducing maintenance events and extending service intervals. Application: high-duty industrial environments where thermal stress is common. Feature: NEMA 2 enclosure with electrostatic shield → Business Impact: Enhanced protection against dust, moisture, and EMI, lowering risk of downtime and signal interference. Application: manufacturing floors, assembly lines, and exposed electrical rooms. Feature: Taps at 2 at +2.5% and 4 at -2.5% → Business Impact: Precise voltage regulation to match load variations, decreasing voltage-related equipment stress and improving process stability. Application: panel buildings and retrofit projects with tight voltage tolerances. Feature: UL Listed and DOE 2016 Efficient → Business Impact: Regulatory compliance, safer operation, and energy-cost savings across the lifecycle. Application: regulated facilities and institutions prioritizing sustainable design. Feature: 75 kVA, 208 V in/out, copper windings, WS60 option → Business Impact: Scalable power for mid-sized automation, with optional weather protection for less controlled sites. Application: control panels, substations, and field installations requiring reliable, adaptable power.
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FAQs
Plan for floor or wall mounting with upright orientation. The unit weighs 1,112 lb and measures 31.5 in deep, 34.5 in wide, and 51 in tall, requiring secure anchoring and adequate clearance for maintenance and ventilation. Install in a clean, dry location with NEMA 2 protection and ensure accessible wiring connections (210 V in/out via 295D) for serviceability.
It delivers 75 kVA at 60 Hz with a 208 V primary and 208 V secondary in a three-phase configuration. Copper windings and a 80 °C rise support reliable high-load operation, while the +2.5%/−2.5% tap settings provide voltage regulation to accommodate load variations and maintain system stability in automation networks.
DOE 2016 Efficient certification ensures the transformer meets contemporary energy efficiency standards, lowering operating costs through reduced losses. UL Listing confirms safety and reliability for industrial environments, facilitating procurement and installation processes while supporting compliance with electrical codes and corporate sustainability goals.
The electrostatic shield minimizes stray capacitor coupling, reducing EMI and improving signal integrity in nearby automation equipment. K-Factor 13 indicates enhanced energy efficiency under nonlinear loading, translating to lower heat generation and cooler operation, which is critical for maintaining performance in factory floors with dense electrical noise and high circuit loading.
Yes, the WS60 weathershield option can be added to enhance environmental protection for outdoor or harsh indoor installations. It improves moisture and corrosion resistance, contributing to longer service life in exposed locations while maintaining compliance with the NEMA 2 enclosure and safety standards for maintenance access and uptime.