Eaton S12N12E15CU General-Purpose Transformer - UL Listed
Part Number: S12N12E15CU
Quick Summary
Eaton S12N12E15CU general-purpose encapsulated transformer powers 120 V systems in industrial control panels. The design addresses field wiring variability and harsh environments, reducing downtime and maintenance costs. UL Listed with NEMA 3R protection and indoor-outdoor capability, it pairs with copper windings and 180 frame rating. It delivers a 15 kVA volt-ampere rating at 60 Hz single-phase operation with copper windings and 120 V primary and secondary. With a 115 C rise and a robust NEMA 3R enclosure, installation is flexible in indoor and outdoor spaces, supported by UL listing and a 25-000 warranty policy. The unit's 77A wiring connection and 180 frame offer straightforward field connections and compatibility with common Eaton and third-party accessories. This combination supports reliable service in control cabinets, switchgear rooms, and industrial enclosures.
Product Information
Extended Description
S12N12E15CU Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 180, 60 Hz, single-phase, 120 V, 120 V, NONE, 115 °C rise, 15 KVA, indoor-outdoor, 77A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S12N12E15CU
UPC
786680060489
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
236 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
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Frame
180
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
77A
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
120 V
Secondary Voltage
120 V
Temperature rise
115 °C rise
Volt ampere rating
15 kVA
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Feature: The 15 kVA, 60 Hz, single-phase design uses copper windings and a 120 V primary/secondary configuration to deliver clean, stable power to control circuits. Business impact: copper windings reduce resistance losses, improving efficiency and voltage regulation under load transients. Application: ideal for industrial control panels, machine feeders, and automation devices requiring reliable isolation and low audible heat. Feature: NEMA 3R enclosure provides indoor-outdoor protection. Business impact: weather resistance lowers retrofit and maintenance costs and extends service life in challenging environments. Application: outdoor equipment enclosures, rooftop installations, and wet or dusty plant floors. Feature: Electrostatic shielding adds EMI protection and safety. Business impact: reduces interference with nearby drives and sensors, supporting compliant factory floor communications. Application: automation cells and distributed control architectures where EMI margins matter. Feature: 115 °C temperature rise and 180 frame rating enable a compact footprint with predictable thermal performance. Business impact: allows dense cabinet layouts without sacrificing reliability. Application: small footprint installations in tight control rooms and switchgear bays. Feature: UL Listed certification and Eaton warranty policy (one year from installation or 18 months from shipment). Business impact: simplifies procurement, regulatory compliance, and post-sale support. Application: projects requiring formal certification trails and vendor accountability. Feature: 77A wiring connection and copper windings support straightforward field wiring. Business impact: faster install and easier future maintenance, with compatibility to Eaton and third-party accessories. Application: retrofits and new builds in automation and electrical distribution.
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FAQs
The S12N12E15CU is designed with a 120 V primary and 120 V secondary, copper windings, and a 180 frame; its 77A wiring connection simplifies field wiring. It fits typical control cabinet and switchgear retrofits, with mounting options compatible with standard Eaton accessories and third-party panels. Ensure enclosure space, ventilation, and clearance meet local electrical codes.
With a 15 kVA rating at 60 Hz single-phase operation, copper windings minimize I2R losses, improving efficiency and voltage regulation under transient loads. The 115 °C rise rating enables reliable operation in confined spaces, while the UL Listed designation confirms compliance for industrial environments. This combination supports stable control voltage for PLCs, drives, and sensors.
Yes. The S12N12E15CU comes in a NEMA 3R enclosure designed for indoor-outdoor use, providing protection against moisture and dust. Its indoor-outdoor capability, along with electrostatic shielding, helps maintain performance in exposed locations such as outdoor panels and loading docks, reducing the need for separate weatherproof cabinets.
This unit is UL Listed, reflecting adherence to applicable safety standards. Eaton offers a one-year warranty from installation or eighteen months from shipment, whichever occurs first, plus a comprehensive policy referenced as 25-000. This supports procurement confidence, service planning, and ongoing compliance with regulatory expectations.
Copper windings offer low resistance losses and durable performance, contributing to energy efficiency and reduced operating costs over time. The rugged NEMA 3R enclosure and electrostatic shielding minimize downtime due to environmental factors and EMI. Combined with long service life and strong vendor support, this translates to favorable total cost of ownership in automation and power-distribution applications.