Eaton T20P11S15NV Transformer - DS-3 Dry Type
Part Number: T20P11S15NV
Quick Summary
The Eaton T20P11S15NV transformer provides reliable power distribution for indoor general-purpose electrical loads. Engineers often battle voltage drift, bulky enclosures, and maintenance-heavy designs that slow projects and raise costs. Regulatory certifications are provided by Eaton upon request; consult the datasheet for CE, IP ratings, or SIL conformance where applicable. This DS-3 dry-type, 15 kVA, single-phase unit with aluminum windings delivers efficient, low-maintenance power suitable for commercial and light industrial applications, aligning with DS-3 standards while simplifying installation and future upgrades. With adjustable taps and a robust enclosure, it accommodates voltage fluctuations and helps protect sensitive equipment, delivering predictable performance and lower lifecycle costs.
Product Information
Extended Description
T20P11S15NV Eaton: General-Purpose Transformer, Ventilated, Dry Type Distribution, DS-3, Single-phase, PV: 240 X 480V, Taps: 1 at +5% FCAN, 2 at -5% FCBN X 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 120/240V, 150°C, 15 kVA, Al windings, Frame: 817N
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
T20P11S15NV
UPC
786680052071
Product Length/Depth
19.5 in
Product Height
37.53 in
Product Width
22.59 in
Product Weight
328 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
Contact Manufacturer
Catalog Notes
Totally enclosed non-ventilated DS-3 or DT-3
Coil material
Aluminum
Design
DS-3
Frame
817N
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
Kva Rating
15 kVA
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
Feature: Totally enclosed non-ventilated DS-3 dry-type transformer with aluminum windings and a 15 kVA rating. Benefit: Provides reliable indoor power distribution with reduced dust ingress and maintenance needs, supporting longer equipment life in commercial and light industrial settings. Application: Ideal for indoor distribution panels where space and protection are critical. Feature: Tap settings including 1 at +5% FCAN, 2 at -5% FCBN, and 2 at +2.5% FCAN, plus 4 at -2.5% FCBN. Benefit: Enables precise voltage regulation to compensate for supply variation, protecting sensitive loads and reducing downtime. Application: Plants, warehouses, and facilities with variable power feeds.Feature: 150°C temperature rise rating. Benefit: Sustains reliable operation under peak loading conditions, minimizing thermal stress and improving uptime. Application: High-demand applications and startup surges within general-purpose distributions.Feature: Frame 817N and 328 lb weight. Benefit: Heavy-duty construction provides rugged support and durable installation in demanding environments, reducing vibration and movement. Application: Floor or wall-mounted indoor installations in production or process spaces.Feature: Primary 240/480V and secondary 120/240V with 60 Hz rating. Benefit: Flexible input/output options that match common building voltages, simplifying integration and reducing the need for extra hardware. Application: Indoor electrical rooms serving mixed-load systems with tight space constraints.Feature: Warranty and service terms (one year from installation or 18 months from shipment). Benefit: Clear risk management and predictable maintenance planning, lowering total cost of ownership. Application: Procurement and ongoing service planning for facility programs.
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FAQs
Plan for indoor installation with DS-3 enclosure. The unit weighs 328 lb and has dimensions of approximately 19.5 in L, 37.53 in H, and 22.59 in W. Provide a solid, level mounting surface, adequate ventilation-free clearance, and proper cable routing to accommodate the 15 kVA single-phase rating and 60 Hz operation.
Primary voltage options are 240 V or 480 V, with a secondary of 120/240 V. The taps include 1 at +5% FCAN, 2 at -5% FCBN, 2 at +2.5% FCAN, and 4 at -2.5% FCBN, enabling voltage regulation to compensate for supply drift and load change, which protects connected equipment and improves performance in variable conditions.
Yes, it is a totally enclosed non-ventilated dry-type transformer designed for indoor distribution, providing enclosure protection that minimizes dust ingress. For outdoor or harsh environments, consult Eaton for specific ratings and recommendations. Certifications are available upon request from the manufacturer.
Certifications for the T20P11S15NV are listed as ‘Contact Manufacturer’ in the product data. For regulatory approvals such as CE, IP ratings, or SIL conformance, refer to Eaton’s official datasheets and request the relevant certification documentation from Eaton directly.
The unit carries Eaton's warranty of one year from installation or eighteen months from shipment, whichever occurs first. Routine maintenance is typically minimal due to the dry-type DS-3 construction and aluminum windings. Plan for periodic inspection of enclosure integrity, taps, and terminations to sustain reliability and optimize lifecycle cost.