Eaton T20P11S1516ZZ Open core-coil ventilated transformer - NEMA TP-1 Compliant
Part Number: T20P11S1516ZZ
Quick Summary
Eaton Open core-coil ventilated transformer powers 240/480V control panels in industrial plants. Facility teams face heat buildup, limited space, and fluctuating efficiency during panel retrofits, driving maintenance costs and downtime. UL Recognized and NEMA TP-1 compliant reinforce safety and reliability, while the open-core design improves ventilation and cooling under full load. This dry-type transformer delivers 15 kVA with 150°C rise, making it suitable for compact, high-density installations. By combining robust performance with a compact footprint and straightforward installation, it supports faster deployment, reduced energy loss, and lower total cost of ownership in automation applications across modern factories and control rooms alike.
Product Information
Extended Description
T20P11S1516ZZ Eaton: Eaton Open core-coil ventilated transformer, DS-3 (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, 15 kVA, 16, ZZ
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
T20P11S1516ZZ
UPC
786680211409
Product Length/Depth
1.1 in
Product Height
1.1 in
Product Width
1.1 in
Product Weight
224 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 Recognized
Catalog Notes
NEMA TP-1 efficient, Open type core and coil assembly
Coil material
Aluminum
Frame
CS15G103
Tap size
1 at +5% FCAN, 2 at -5% FCBN x 2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Dry Type Distribution Transformer
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
15 kVA
Eaton's high-efficiency dry-type transformers
Eaton's high-efficiency dry-type transformers
Eaton Specification Sheet - T20P11S1516ZZ
The T20P11S1516ZZ is a 15 kVA single-phase dry-type transformer with a 240 x 480 V primary and 120/240 V secondary, designed for open-core ventilation. Feature → Business Impact → Application: The open-core ventilated design enhances thermal performance, reducing overheating risk and enabling steadier output under peak loads, which translates to improved equipment uptime in automated lines and panel boards. Application includes control panels and motor control centers where reliability and fast heat dissipation matter for continuous production. Feature → Tap-adjustment flexibility (1 at +5%, 2 at -5%, 2 at +2.5%, 4 at -2.5%) → Business Impact → Application: Precise voltage regulation supports consistent downstream voltages, minimizing equipment chatter and protecting sensitive electronics in varied supply environments; ideal for retrofit projects and legacy systems. Feature → Aluminum coil and CS15G103 frame → Business Impact → Application: Lighter aluminum windings paired with a robust frame improve thermal cycling performance and ease of installation, reducing maintenance downtime in manufacturing facilities. Feature → UL Recognized and NEMA TP-1 compliant → Business Impact → Application: Compliance accelerates procurement and regulatory alignment for critical industrial applications, including energy-efficient, safe power distribution in automation installations. Feature → 150°C rise and 60 Hz, single-phase → Business Impact → Application: High-temperature tolerance and compatibility with standard plant power systems enable reliable operation in dense electrical rooms and machine enclosures, supporting scalable automation deployment.
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FAQs
Install the unit in accordance with Eaton installation guidelines for dry-type transformers. Ensure proper clearance for ventilation, mount on a rigid base within the CS15G103 frame, and connect 240/480V primary and 120/240V secondary conductors with compatible terminals. Verify taps are set to the operating voltage window (+5%, -5%, +2.5%, -2.5%) and perform a temperature rise check after commissioning to confirm airflow cooling in the enclosure.
The transformer supports 240/480 V primary and 120/240 V secondary. Voltage regulation is managed via taps: 1 at +5%, 2 at -5% for FCAN, and 2 at +2.5%, 4 at -2.5% for FCBN. This allows compensation for supply variation, improving downstream voltage stability for sensitive loads and equipment in automation circuits.
Yes. The T20P11S1516ZZ is UL Recognized and NEMA TP-1 compliant, emphasizing safety and efficiency for commercial and industrial power distribution. These certifications simplify procurement, support regulatory compliance, and reassure performance under continuous running conditions typical of manufacturing, processing, and packaging lines.
General specifications indicate a compact footprint and frame CS15G103, with product dimensions listed as 1.1 in length/depth, height, and width, and a weight of 224 lb. Plan for a sturdy mounting surface, appropriate enclosure openings, and ventilation clearance to maintain optimal operating temperatures in an industrial setting.
Best suited for control panels, panel boards, and motor control centers requiring reliable 15 kVA single-phase transformation from 240/480 V to 120/240 V. It’s ideal for high-density electrical rooms, retrofit projects, and automation lines where NEMA TP-1 efficiency, UL recognition, and open-core ventilation contribute to lower energy loss, longer service life, and easier maintenance.