Eaton S20K11S05CUS64X Transformer - NEMA 4X enclosure
Part Number: S20K11S05CUS64X
Quick Summary
Eaton S20K11S05CUS64X encapsulated transformer provides reliable power conversion for industrial control panels and automation equipment. In many facilities, moisture, dust, and harsh conditions threaten uptime; this unit’s rugged enclosure helps minimize unplanned downtime. Certifications and protection features include a NEMA 4X-grade enclosure with a 316 stainless steel option, indoor-outdoor suitability, and copper windings designed for long life in demanding environments. The design supports efficient, safe operation in standard 60 Hz industrial networks while aligning with maintenance and installation best practices. For engineering leaders, this transformer combines robust protection with proven performance—a solid fit for control logic power, energy management, and compact panel designs. It also complements broader Eaton power management and distribution solutions for improved system reliability and total cost of ownership.
Product Information
Extended Description
S20K11S05CUS64X Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, 240 x 480v 1 at -10% fcbn x 2 at -5% fcbn, 120/240v, 150°c, 5 kva, copper windings, 177 9a, indoor-outdoor ,60 hz, nema 4x
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11S05CUS64X
UPC
786680116513
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 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 316 stainless steel enclosure.
Coil material
Copper
Design
EP
Enclosure
NEMA 4X
Frame
177
Tap size
1 at -10% FCBN x 2 at -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
5 kVA
Weathershield
Indoor-Outdoor
Feature to benefit mapping drives the value here. The general-purpose encapsulated design uses copper windings to improve efficiency and thermal performance, which translates to lower losses and cooler operation in continuous-duty control panels. Business impact: reduced energy waste and longer component life, enabling more predictable maintenance schedules and lower operating costs. Application: ideal for automation cabinets, motor control centers, and distributed control systems where space and protection are critical. Feature: single-phase 60 Hz operation with 5 kVA rating and dual primary voltages of 240 V and 480 V. Business impact: flexible sourcing and easier integration with existing plant power layouts, reducing design complexity and stocking needs. Application: feeder power to PLCs, relays, and small drives in manufacturing lines. Feature: copper windings and EP encapsulation combined with a NEMA 4X enclosure. Business impact: rugged, moisture-resistant performance that supports indoor-outdoor installation and corrosion resistance, lowering corrosion-related maintenance. Application: environments with wash-down requirements or outdoor installations. Feature: secondary voltage 120/240 V and tap settings (1 at -10% FCBN x 2 at -5% FCBN). Business impact: precise voltage matching at critical loads, minimizing risk of equipment damage and trip events. Application: instrumentation, sensing circuits, and control loops needing stable low-voltage power. Feature: compact footprint with specified dimensions and weight. Business impact: easier panel mounting and space optimization in crowded automation cabinets. Application: retrofits and new builds where space is at a premium. This combination of performance specifications and enclosure protection supports faster installation, higher reliability, and improved total cost of ownership in industrial environments with variable voltages and harsh conditions.
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FAQs
Plan for a secure wall or chassis mount, ensure clear air clearance for cooling, and account for its NEMA 4X enclosure to protect against moisture and dust. Verify panel grounding and proper wiring to the 240/480 V primary and 120/240 V secondary lines, and accommodate the 60 Hz operation with appropriate circuit protection.
It is a single-phase transformer rated at 5 kVA with dual primary voltages of 240 V and 480 V and a secondary of 120/240 V, operating at 60 Hz. The device uses copper windings and provides a 150 °C rise rating, suitable for standard industrial power distribution.
Yes. The unit features an indoor-outdoor capable enclosure described as NEMA 4X, with a 316 stainless steel option noted in catalog notes, making it appropriate for environments requiring robust moisture and abrasion protection.
The warranty follows Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. For technical assistance, consult Eaton’s specification sheets and contact support if field issues arise during installation.
Typical uses include powering control panels, PLCs, relays, sensors, and small drives in automation lines. Its 5 kVA capacity, 240/480 V primary, 120/240 V secondary, and rugged enclosure make it suitable for panel upgrades, retrofits, and new equipment needing reliable, isolated low-voltage power within harsh plant environments.