Eaton NT20P11S75CUEE Transformer - UL Listed
Part Number: NT20P11S75CUEE
Quick Summary
Eaton NT20P11S75CUEE transformer delivers reliable 75 kVA single-phase power distribution for industrial plants. Engineers struggle with voltage drift and efficiency under varying loads, which can impact equipment performance and energy costs. UL Listed and NEMA TP-1 compliant, with catalog notes highlighting NEMA TP-1 efficiency, this unit prioritizes safety and energy performance. For designers and buyers, it offers strong compatibility with frame 821 installations and scalable power delivery to support growing control systems and equipment fleets.
Product Information
Extended Description
NT20P11S75CUEE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (1-phase), PV 240 x 480V, Taps: 1 at +5%/2 at -5% x 2 at +2.5%/4 at -2.5%, SV 120/240V, 150°C rise, 75 kVA, Copper windings, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT20P11S75CUEE
UPC
786680040245
Product Length/Depth
33.97 in
Product Height
62.91 in
Product Width
29.97 in
Product Weight
1056 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
821
Tap size
1 at +5% FCAN, 2 at -5% FCBN x 2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
75 kVA
Phase
Single-phase
Primary voltage
240 x 480 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 - NT20P11S75CUEE
Copper windings and a 75 kVA single-phase design deliver high efficiency and durability, reducing heat buildup and life-cycle costs in continuous-duty loads. This translates to higher uptime for control panels and switchgear where stable voltage is critical. The copper construction also improves thermal conductivity, supporting longer insulation life under demanding duty cycles. Voltage regulation is enhanced by taps: 1 at +5%, 2 at -5%, and 2 at +2.5% with 4 at -2.5%, enabling precise compensation for supply drift in industrial environments. The result is tighter voltage control and fewer nuisance trips in automation systems. The 240/480 V primary and 120/240 V secondary configuration provides flexible integration across facility networks. Combined with frame 821 and dimensions near 34 in by 63 in by 30 in, it fits both cabinet-mounted and standalone installations with a 1056 lb weight for stable mounting. A 150 C temperature rise and ventilated design manage high inrush and cycling without overheating. This supports rapid startups and sustained performance in demanding processes while maintaining insulation integrity. UL Listed and NEMA TP-1 compliant with NEMA TP-1 efficient catalog notes, plus electrostatically shielded construction, reinforce safety, regulatory compliance, and energy performance. A one-year warranty (or 18 months from shipment) gives buyers a clear, serviceable risk profile. In practice, the NT20P11S75CUEE enables scalable power distribution for industrial automation, reducing energy losses and simplifying maintenance planning for engineering teams.
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FAQs
Plan for the unit’s footprint of roughly 34 in L x 63 in H x 30 in W and a 1056 lb wait. Securely mount on a solid base, ensure adequate ventilation, and follow manufacturer wiring diagrams. Connect the 240/480 V primary to the incoming mains and the 120/240 V secondary to the load circuits, respecting phase alignment and tap settings for voltage regulation.
The transformer is a 75 kVA, single-phase device operating at 60 Hz. Primary voltage is 240 x 480 V with a secondary of 120/240 V, delivering stable power for industrial controls, with copper windings and a frame 821 construction for robust performance.
Yes. The unit is UL Listed and NEMA TP-1 compliant, with catalog notes indicating NEMA TP-1 efficiency. This combination supports safety, regulatory compliance, and energy-performance requirements in regulated industrial environments.
Tap settings include 1 at +5%, 2 at -5%, and 2 at +2.5% with 4 at -2.5%. These taps enable precise voltage compensation to counter supply drift, ensuring stable output for sensitive automation equipment and reducing nuisance trips in fluctuating electrical networks.
The transformer is covered by Eaton’s warranty policy: one year from installation or 18 months from shipment, whichever occurs first. This, combined with Eaton’s technical support and available datasheets, helps control total cost of ownership and maintain uptime.