Eaton T20P11S15CUN12 Transformer - UL Listed NEMA 12
Part Number: T20P11S15CUN12
Quick Summary
Eaton Totally enclosed non-ventilated transformer is designed to deliver rugged, isolation-grade power for control panels in demanding industrial environments. Facility teams struggle with heat buildup, dusty atmospheres, and space constraints that undermine uptime and drive maintenance costs. Key certifications include UL Listed status, a NEMA 12 enclosure, and a 150°C insulation rise, ensuring performance in harsh indoor conditions. With a 15 kVA rating and copper windings, this transformer supports reliable power distribution for single-phase systems, while DOE 2016 exempt status helps meet energy-efficiency goals—great for retrofits and new builds alike. Its floor-mount design and 240/480 V primary to 120/240 V secondary make it a versatile choice for machine controls, packaging lines, and process equipment.
Product Information
Extended Description
T20P11S15CUN12 Eaton: EATON TOTALLY ENCLOSED NON-VENTILATED TRANSFORMER, DOE 2016 EXCEMPT, COPPER, 60HZ, 15KVA, SINGLE PHASE, 240X480V, 120/240V, NEMA ST-20, 150°C RISE, NEMA 12, 843ANV, 220°C, 1@+5%, 2@-5% X 2@+2.5%, 4@-2.5%
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
T20P11S15CUN12
UPC
786680249549
Product Length/Depth
30.06 in
Product Height
49.63 in
Product Width
29.5 in
Product Weight
555 lb
Compliances
Not Applicable
Certifications
UL Listed
Coil material
Copper
Enclosure
NEMA 12
Frame
843ANV
Insulation
220°C
Mounting
Floor
Tap size
1@+5%, 2@-5% X 2@+2.5%, 4@-2.5%
Wiring connection
3XA
Efficiency
Exempt
Frequency rating
60 Hz
Kva Rating
15 kVA
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Sound Level
NEMA ST-20
Temperature rise
150 °C rise
Special features
TOTALLY ENCLOSED NON-VENTED NEMA 12 ENCLOSURE
Weathershield
Not required
Feature: Totally enclosed non-ventilated construction with a NEMA 12 enclosure. Business Impact: Protects copper windings from dust, moisture, and incidental contact, dramatically extending service intervals and reducing field maintenance costs. Application: Ideal for indoor industrial environments such as machine rooms and control cabinets where ventilation is limited. Feature: Copper windings with a 15 kVA single-phase rating. Business Impact: Delivers efficient, low-loss power transfer with stable voltage under dynamic loads, minimizing thermal stress and improving reliability. Application: Suitable for machine controls, line feeders, and packaging equipment in manufacturing facilities. Feature: Primary voltage 240/480 V and secondary voltage 120/240 V. Business Impact: Enables flexible integration with existing power distribution, simplifying panel design and wiring diagrams. Application: Retrofit projects or new builds requiring straightforward step-down within a single transformer footprint. Feature: Frequency 60 Hz and insulation rated at 220°C with a 150°C rise. Business Impact: Supports dependable performance in standard US environments while tolerating short-term overloads without insulation breakdown. Application: Continuous operation in demanding production lines. Feature: Floor mounting, 843ANV frame, and NEMA 12 enclosure with 3XA wiring connection. Business Impact: Easy, stable installation and standardized mounting footprint reduce installation time and future maintenance. Application: Floor-mounted transformers in control rooms, utility spaces, and equipment housings. Feature: DOE 2016 exempt and UL Listed certification. Business Impact: Aligns with energy compliance programs and safety standards, lowering procurement risk and accelerating approval cycles. Application: Facilities pursuing energy targets and strict safety compliance in industrial power distribution.
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FAQs
The transformer is a floor-mounted, single-phase unit with 240/480 V primary and 120/240 V secondary, designed for control panels and indoor power distribution. Its 3XA wiring connection and 843ANV frame simplify integration into typical panel designs and support straightforward field wiring.
It is a 15 kVA, single-phase transformer with primary 240/480 V and secondary 120/240 V, rated for 60 Hz. Copper windings and a 150°C insulation rise provide robust performance under load, with a NEMA 12 enclosure for indoor protection.
Yes. The totally enclosed non-ventilated design inside a NEMA 12 enclosure protects windings from dust and moisture, making it well suited for indoor machine rooms, control cabinets, and production floors where ventilation cannot be guaranteed.
It is UL Listed and DOE 2016 exempt, which supports safety compliance and energy efficiency targets. Its NEMA 12 enclosure also provides ingress protection suitable for many indoor industrial settings.
Floor mounting with a stable 843ANV frame simplifies installation and service. The copper windings and solid enclosure reduce maintenance costs and downtime, contributing to a favorable return on investment in control panels and power distribution for manufacturing facilities.