Eaton HT20P11S5016ZZ Open Core-Coil Transformer - NEMA TP-1
Part Number: HT20P11S5016ZZ
Quick Summary
The Eaton HT20P11S5016ZZ open core-coil ventilated transformer fits industrial control panels and power distribution setups. Engineers frequently struggle with heat, energy efficiency, and lifecycle costs in large switchgear assemblies. This unit is UL Listed, NEMA TP-1 compliant for commercial/industrial use, and DOE 2016 Efficient, helping meet regulatory and performance targets. Its aluminum coil, 150°C rise, and 50 kVA rating support reliable power conversion in demanding environments. The design also features multiple primary taps to match supply voltages, simplifying installation and reducing material costs, while aligning with Eaton’s durable power management solutions in automation systems.
Product Information
Extended Description
HT20P11S5016ZZ Eaton: Eaton Open core-coil ventilated transformer, KT-4 (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, 50 kVA, 16, ZZ
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
HT20P11S5016ZZ
UPC
786680206955
Product Length/Depth
23.84 in
Product Height
42.03 in
Product Width
24.22 in
Product Weight
529 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
Aluminum
Frame
819
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
Phase
Single-phase
Primary voltage
240 x 480 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
Volt ampere rating
50 kVA
Special features
Electrostatically shielded
Weathershield
WS16
Eaton Specification Sheet - HT20P11S5016ZZ
Selling Policy 25-000 - Distribution and Control Products and Services
Open core-coil ventilated design enhances cooling and efficiency. The ventilated core provides higher air flow around windings, reducing operating temperature under load and enabling higher continuous duty without overheating. This translates to longer service life, lower maintenance, and lower energy losses in mission-critical automation panels. With a 50 kVA rating, 1-phase operation, and primary 240/480 V to secondary 120/240 V, the HT20P11S5016ZZ offers versatile voltage conversion for equipment sets. The single-phase format simplifies wiring in compact panels, while the 60 Hz frequency aligns with standard North American industrial systems. Tap changes include 1 at +5% FCAN, 2 at -5% FCBN, and 2 at +2.5% FCAN/4 at -2.5% FCBN, enabling precise voltage tuning to accommodate supply variations. Field-adjustability minimizes voltage sag, reduces nuisance trips, and supports tighter regulation in drives and sensing circuits. UL Listed, NEMA TP-1 compliant, and DOE 2016 Efficient markings address safety and reliability requirements, streamlining procurement and reducing lifecycle costs. The transformer uses an aluminum coil for robust performance, Electrostatic shielded windings, and WS16 weather shield for outdoor or harsh indoor environments, mitigating EMI and expanding installation versatility. Dimensions and weight—23.84 in L x 42.03 in H x 24.22 in W; 529 lb—require proper mounting hardware but provide a sturdy platform for reliable power transfer in manufacturing lines and process controls, and align with Eaton’s power management ecosystem for easier maintenance and spare parts.
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FAQs
Ensure adequate enclosure space for a 529 lb single-phase transformer with dimensions of roughly 23.84 in length, 42.03 in height, and 24.22 in width. Provide sturdy mounting brackets and clearances for cooling. Verify input and output wiring for 240/480 V to 120/240 V configurations, and plan for the multiple taps to accommodate voltage variation without compromising performance.
The unit is a 1-phase, 60 Hz transformer rated at 50 kVA. Primary voltage is 240 x 480 V and secondary voltage is 120/240 V. It features a 150°C rise, aluminum coil material, and taps: 1 at +5%, 2 at -5%, and 2 at +2.5% with 4 at -2.5%, enabling voltage fine-tuning in field installations.
Yes. With 50 kVA capacity, 60 Hz operation, and 240/480 V to 120/240 V conversion, it supports motors, drives, and sensing circuits in control cabinets. The open core-coil ventilated design enhances cooling in dense panel layouts, while reducer taps simplify matching to fluctuating supply conditions common in manufacturing environments.
HT20P11S5016ZZ is UL Listed and NEMA TP-1 compliant, with DOE 2016 Efficient rating. These certifications address safety, reliability, and energy performance requirements for industrial installations, helping streamline procurement, ensure regulatory compliance, and reduce energy-related costs across the system lifecycle.
Expect reliable operation and lower energy losses due to DOE 2016 Efficient rating and efficient cooling from the ventilated design. The 1-year warranty (plus 18 months from shipment in some terms) supports initial risk mitigation. Availability of spare parts through Eaton’s network improves total cost of ownership and reduces downtime in automation lines.