Eaton N48M47T33A Transformer - K-13 Nonlinear Ventilated
Part Number: N48M47T33A
Quick Summary
The Eaton N48M47T33A transformer provides reliable power conversion for three-phase critical-load installations, combining K-Factor nonlinearity with robust ventilation for stable operation. Engineers often confront voltage stability issues, overheating at high kVA, and space constraints that drive maintenance costs and downtime. This model delivers UL Listed safety certification, a 150°C rise capability, electrostatic shielding, and WS35 weather protection to support rugged, compliant operation. In practice, it supports data centers, manufacturing floors, and automation cells with predictable thermal behavior, simplified installation, and a favorable total cost of ownership. With aluminum windings, a robust frame 919, and precise taps, the N48M47T33A integrates smoothly into existing power distribution layouts while meeting modern efficiency and safety expectations.
Product Information
Extended Description
N48M47T33A Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 480Y/277V, 150°C, 300 kVA , Al windings, Elec. Shield, Frame: 919, uses WS35
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M47T33A
UPC
786680015021
Product Length/Depth
36.23 in
Product Height
75 in
Product Width
44.2 in
Product Weight
2602 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.
Certifications
UL Listed
Catalog Notes
Model A
Coil material
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
919
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
300 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
480Y/277 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS35
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M47T33A
K-Factor nonlinear design and ventilated construction improve thermal stability during peak loads. This reduces hotspot formation and short-term overheating, extending equipment life and lowering maintenance costs. Ideal for data centers and industrial facilities with erratic loading, enabling safer operation under transient conditions. The 300 kVA rating across three phases consolidates capacity and reduces the number of transformers in a cabinet. That simplification improves space utilization and lowers upfront capital expense for large-scale power distribution. This design is particularly valuable where reliability matters in data centers, automation cells, and manufacturing lines. Tap-size options of +2.5 percent and -2.5 percent allow precise voltage regulation across feed variations. That capability minimizes downstream overshoot, protects sensitive electronics, and reduces reliance on external regulators. It is particularly beneficial for motor drives, PLC power, and control panels where voltage tolerance is critical. Aluminum windings with an electrostatic shield offer weight savings, durable insulation, and improved fault isolation. This combination supports easier handling during installation and more predictable performance in harsh environments. Frame 919 construction paired with WS35 weather protection enables rugged mounting in outdoor or demanding indoor spaces. Vibration resistance, ease of serviceability, and compatibility with existing Eaton catalogs simplify procurement and installation. For engineers evaluating total cost of ownership, the combination of high-capacity rating, rugged construction, and local service support reduces the cost of downtime over the asset life. In practice, customers report faster installation, lower spares inventory, and clearer procurement specs when sourcing this Eaton N48M47T33A. Industry context notes: K-Factor nonlinearity helps withstand harmonics common in drives and building management systems, making this transformer a future-proof choice for modernization projects.
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FAQs
Plan for frame 919 mounting with adequate clearance for ventilation and service access. The unit weighs 2602 lb and measures 75 in tall, 44.2 in wide, and 36.23 in deep, so ensure floor loading, anchoring, and electrical clearances meet local codes. Use WS35 weather shield when outdoors and follow UL Listed mounting guidelines.
The transformer is a three-phase, 300 kVA device with a 480 V primary and a 480Y/277 V secondary, rated for 60 Hz operation. It features taps at +2.5% FCAN and -2.5% FCBN, aluminum windings, a 150°C rise, and an electrostatic shield to enhance safety and reliability in challenging environments.
Yes, the N48M47T33A is UL Listed, confirming safe, code-compliant operation for industrial installations. It also carries design features such as K-13 nonlinear characteristics and an electrostatic shield, contributing to safer performance in variable loading and elevated temperature conditions.
This transformer is well suited for data centers, factory automation, and critical-load circuits where voltage stability and thermal management are essential. Its high capacity, robust ventilation, and WS35 weather protection make it a strong choice for indoor panels and outdoor installations in demanding industrial environments.
The unit is covered under Eaton’s policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Routine maintenance emphasizes monitoring for insulation integrity, tap settings, and cooling performance; UL Listed status and rugged construction help reduce downtime risk and simplify lifecycle support.