Eaton S20M11E25CUSS4X Transformer - NEMA 4X, 25 kVA
Part Number: S20M11E25CUSS4X
Quick Summary
Eaton S20M11E25CUSS4X general purpose encapsulated transformer delivers reliable power isolation for industrial control and distribution. In practice, engineers struggle with environmental exposure, moisture ingress, and inconsistent loading that impact uptime. This model leverages a copper-wound, encapsulated design housed in a NEMA 4X enclosure for indoor-outdoor use, while operating at 60 Hz with a 25 kVA rating and dual primary voltages. Typical certifications for this class often include Europe CE documentation and North American safety listings, alongside rugged enclosure protection standards. By combining robust protection with flexible tap settings and weather-resilient construction, it supports safer installations, easier maintenance, and longer service life in demanding facilities—reducing spare-part costs and downtime while improving overall system reliability.
Product Information
Extended Description
S20M11E25CUSS4X Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 4X, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, 2 at +2.5% FCAN 4 at -2.5% FCBN, 150 °C rise, 25 KVA, indoor-outdoor
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20M11E25CUSS4X
UPC
786680082047
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 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
NEMA 4X Grade 304 stainless steel enclosure.
Coil material
Copper
Design
EP
Enclosure
NEMA 4X
Tap size
2 at +2.5% FCAN 4 at -2.5% FCBN
Type
General-purpose encapsulated transformer
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
Volt ampere rating
25 kVA
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application: Encapsulated copper-wound coil provides high thermal efficiency and low leakage inductance, improving transformer longevity and reducing energy losses in variable ambient conditions; Application: Ideal for machine control panels and cross-connect substations where environmental exposure is a concern. Feature → Business Impact → Application: NEMA 4X enclosure with Grade 304 stainless steel construction offers superior corrosion and washdown resistance, enabling outdoor and harsh indoor environments without corrosion risk; Application: Outdoor equipment rooms, coastal facilities, and food/ beverage facilities requiring hygiene. Feature → Business Impact → Application: 25 kVA rating with 240/480 V primary and 120/240 V secondary supports scalable load distribution and compatibility with common distribution schemes; Application: Building automation, panel boards, and control systems. Feature → Business Impact → Application: Tap settings 2 at +2.5% FCAN and 4 at -2.5% FCBN enable voltage compensation for supply fluctuations, improving equipment performance and reducing miscoordination risk; Application: Systems sensitive to voltage drops or surges. Feature → Business Impact → Application: 60 Hz single-phase operation simplifies integration with standard industrial controls and reduces design complexity; Application: Control panels and process lines requiring straightforward interfacing. Feature → Business Impact → Application: Electrostatic shielding feature minimizes EMI, enhancing signal integrity for nearby communications and instrumentation; Application: Plant-wide automation networks and instrumentation-heavy environments.
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FAQs
Plan for a level mounting surface and adequate clearance for the NEMA 4X enclosure. Ensure safe access to the primary and secondary terminations, and verify ambient conditions stay within the transformer’s design limits for 60 Hz operation. Use chassis grounds and follow applicable local electrical codes during installation.
Primary voltage options are 240 V and 480 V, with a secondary of 120/240 V. Tap settings include 2 taps at +2.5% FCAN and 4 taps at -2.5% FCBN to accommodate voltage variations in the supply without losing regulation performance.
Yes. It features a NEMA 4X enclosure with Grade 304 stainless steel construction, designed for indoor-outdoor service and resistance to corrosion and washdown environments, enabling reliable operation in challenging facilities.
Eaton offers a standard warranty policy of one year from installation or eighteen months from shipment, whichever occurs first. Manufacturer-backed technical support is available to assist with installation, maintenance, and performance optimization.
Encapsulation protects windings from moisture and contaminants, reduces noise and vibration, and improves reliability in variable temperatures. Combined with copper windings and an electrostatically shielded design, it delivers stable voltage transformation and EMI resilience for sensitive control circuits.