Eaton NT20P11S5016 K-Factor Transformer - DOE 2016 Efficient

Part Number: NT20P11S5016
NT20P11S5016
Manufacturer
Eaton
Part number
NT20P11S5016
Category

Quick Summary

NT20P11S5016 K-Factor nonlinear ventilated transformer provides reliable, efficient power conditioning for industrial controls. Operators often face energy waste, excessive heat, and downtime during peak loads, which erodes uptime and increases operating costs. UL Listed and DOE 2016 Efficient compliance, along with 10 CFR Part 431 alignment, help meet regulatory targets while delivering measurable energy savings. This model also emphasizes compatibility with standard 240/480 V primary and 120/240 V secondary configurations, enabling streamlined integration into existing power-distribution architectures and control panels, improving overall system performance and return on investment.

Product Information

Extended Description

NT20P11S5016 Eaton: Eaton K-Factor nonlinear ventilated transformer, Aluminum windings, NEMA 2, 60 Hz, 50 kVA , Single-phase, 240X480-120/240Vac, NEMA ST-20, 1 at +5%, 2 at -5% x 2 at +2.5%, 4 at -2.5%, 50 kVA, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT20P11S5016
UPC
786680221187
Product Length/Depth
27.12 in
Product Height
44.92 in
Product Width
26.27 in
Product Weight
640 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
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Aluminum
Enclosure
NEMA 2
Wiring connection
261A
Type
Energy-efficient ventilated transformer
Frame
FR844A
Insulation
220 °C
Mounting
Floor or wall
Tap size
1 at +5%, 2 at -5% x 2 at +2.5%, 4 at -2.5%
Frequency rating
60 Hz
Kva Rating
50 kVA
Volt ampere rating
50 kVA
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Sound Level
NEMA ST-20
Temperature rise
150 °C rise
Voltage rating
240 X 480 PV, 120/240 SV
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield
Special features
K-factor 13
Weathershield
WS44A
Eaton's high-efficiency dry-type transformers Eaton's high-efficiency dry-type transformers Eaton's Transformer Flex Center Eaton Specification Sheet - NT20P11S5016
Feature: K-Factor nonlinear design enables better handling of non-linear loads. Business Impact: Reduces transformer overheating under peak or transient loads, extending service life and improving power quality. Application: Control panels with drives or power electronics where non-linear loading is common. Feature: DOE 2016 Efficient and UL Listed compliance ensures regulatory alignment. Business Impact: Lower energy consumption and streamlined approval processes, supporting sustainability goals and faster project approval. Application: New installations in facilities pursuing energy-efficiency mandates. Feature: Aluminum windings reduce weight and thermal mass compared with copper equivalents. Business Impact: Easier installation, lower supporting structure loads, and potentially lower lifecycle cooling costs. Application: Industrial environments with space and weight constraints. Feature: NEMA 2 enclosure provides rugged indoor protection against dust and moisture. Business Impact: Greater reliability in workshop, machine shop, or control-room environments with moderate exposure. Application: Floor or wall mounting in industrial facilities. Feature: Tap size options (1 at +5%, 2 at -5% × 2 at +2.5%, 4 at -2.5%) enable voltage optimization on site. Business Impact: Minimize voltage drop, improve voltage regulation, and reduce accessory wear. Application: Facilities with variable supply conditions or long feeders. Feature: 50 kVA single-phase rating with 240/480 V primary and 120/240 V secondary optimizes footprint for mid-size power-distribution needs. Business Impact: Compact footprint and predictable load handling, leading to lower space costs and simpler cabling. Application: Machine-control panels and distribution centers in medium-scale automation projects. Feature: Electrostatic shield modification option enhances insulation integrity and reduced stray capacitance. Business Impact: Improved safety margins and reduced noise coupling in sensitive control circuits. Application: Systems with dense wiring or high-voltage transients. Feature: Frame FR844A and 220 °C insulation provide robust construction for demanding environments. Business Impact: Durable performance with extended service life and reduced maintenance intervals. Application: Typical industrial installation with moderate ambient temperatures.

Get a Quick Quote for a Eaton NT20P11S5016

Chat with us on WhatsApp - fast responses guaranteed

Need to speak with someone? We'll call you back within 2 hours during business hours

Interested in Eaton NT20P11S5016? Enquire Now

FAQs

NT20P11S5016 weighs about 640 lb and is designed for floor or wall mounting with a footprint of roughly 27.12 in by 26.27 in by 44.92 in. Plan for proper lifting gear, adequate clearance for ventilation, and accessible wiring connections (261A). Verify 240/480 V primary and 120/240 V secondary configurations and ensure an indoor, NEMA 2-rated environment to maximize longevity.
This transformer provides 50 kVA single-phase capacity with a 240/480 V primary and a 120/240 V secondary. It operates at 60 Hz and uses aluminum windings. The enclosure is NEMA 2, and it employs a CT with 1 at +5%, 2 at -5% x 2 at +2.5%, 4 at -2.5% tap configuration for voltage adjustments.
NT20P11S5016 is UL Listed and DOE 2016 Efficient, with 10 CFR Part 431 (2016) Efficient notes. These certifications support regulatory compliance, energy-efficiency targets, and safer operation in regulated industrial environments, facilitating meeting green procurement requirements and audit readiness.
Yes. With 50 kVA rating, 240/480 V primary and 120/240 V secondary outputs, and a compact footprint, it is well-suited for mid-size automation cabinets, machine rooms, and distribution hubs. The K-Factor nonlinear design also helps manage non-linear loads common in drives and power electronics, enhancing reliability and power quality.
Plan for a one-year warranty (installation-based) or 18 months from shipment, and account for the electrostatic shield modification option to improve insulation performance. Regular inspection of enclosure integrity, winding insulation (220 °C rating), and cooling performance will help sustain efficiency and minimize unexpected downtime over the long term.