Eaton NT48M12S2516CU Transformer - UL Listed, NEMA TP-1
Part Number: NT48M12S2516CU
Quick Summary
The Eaton NT48M12S2516CU transformer steps 480 V to 120 V for critical control panel power distribution. Engineers often struggle with efficiency losses, heat, and inconsistent performance in high-kVA systems, driving maintenance costs and downtime. It is UL Listed, NEMA TP-1 compliant, and features DOE 2016 Efficient design to meet modern regulatory and energy standards. With copper windings and a ventilated K-Factor design, the unit delivers reliable power while minimizing heat. This supports industrial automation and panel-building workflows with predictable performance and reduced total cost of ownership.
Product Information
Extended Description
NT48M12S2516CU Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (1-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 120V, 150°C rise, 25 kVA, 16, Copper windings
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT48M12S2516CU
UPC
786680207198
Product Length/Depth
20.36 in
Product Height
37.59 in
Product Width
22.87 in
Product Weight
191 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
818
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
25 kVA
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
120 V
Temperature rise
150 °C rise
Special features
Electrostatically shielded
Weathershield
WS11
Feature: K-Factor nonlinear ventilated transformer design improves thermal management and fault tolerance. Business Impact: Reduces hot spots, enhances uptime, and lowers cooling requirements in compact switchgear. Application: Ideal for 25 kVA, single‑phase distribution in industrial control panels where space is limited and reliability matters. Feature: Copper windings and robust insulation. Business Impact: Lower resistance losses, improved long-term efficiency, and greater durability under cycling loads. Application: Heavy-use automation environments with frequent starts and variable loads. Feature: Tap changes of 2 at +2.5% and 4 at -2.5%. Business Impact: Maintains secondary voltage within tolerance under load fluctuations, reducing equipment stress and nuisance trips. Application: Panels serving sensitive sensors and drives across variable line conditions. Feature: Compliance and efficiency. Business Impact: DOE 2016 Efficient design plus UL Listed and NEMA TP-1 support simplify approvals and optimize energy usage. Application: New builds and retrofits needing regulatory alignment and energy compliance. Feature: Weather and EMI considerations. Business Impact: Electrostatic shielding and WS11 weathershield provide protection in harsh environments, expanding outdoor or semi‑outdoor deployment. Application: Outdoor enclosures and exposed installations in manufacturing facilities.
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FAQs
Yes, the NT48M12S2516CU is designed for panel mounting in industrial enclosures. It features a 25 kVA single‑phase design, frame 818, copper windings, and dimensions suitable for many control cabinets. Ensure proper 480 V primary to 120 V secondary connections, adequate clearance for cooling, and secure mounting before energizing. The taps provide voltage flexibility during commissioning.
Key specs include a 25 kVA rating, 60 Hz frequency, 480 V primary, 120 V secondary, and single‑phase configuration. It uses copper windings and has a 150 °C rise with taps at 2 at +2.5% and 4 at -2.5%. The unit is UL Listed, NEMA TP‑1 compliant, and designed for DOE 2016 efficiency, making it suitable for regulated industrial environments.
Yes. The transformer is designed for industrial automation and control panels requiring dependable voltage conversion and regulatory compliance. Its 25 kVA rating accommodates moderate loads, while DOE 2016 efficiency and UL/NEMA TP‑1 certifications support compliant procurement. The copper windings and electrostatic shield minimize losses and EMI, contributing to stable automation performance.
The NT48M12S2516CU carries UL Listed and NEMA TP‑1 certifications, plus a DOE 2016 Efficient designation. These indicate safety, reliability, and energy efficiency in line with widely adopted standards, easing customer audits and facilitating project approvals. For quantity deployments, these certifications help ensure consistency across multiple panels and sites.
ROI is driven by improved efficiency, reduced heat and cooling needs, and lower maintenance due to copper windings and robust construction. The DOE 2016 Efficient design lowers losses, while the 25 kVA rating supports predictable load handling. A smaller footprint with WS11 weather shielding can reduce enclosure and outdoor installation costs, contributing to favorable lifecycle economics.