Eaton QS20N11S82CU Marine Transformer - UL Listed
Part Number: QS20N11S82CU
Quick Summary
Eaton QS20N11S82CU Marine transformer provides rugged, compact power isolation for on-board electrical systems. Engineers often grapple with moisture ingress, limited space, and the need to match outputs in remote marine environments. This model is UL Listed, housed in a NEMA 3R enclosure, with copper windings to withstand washdowns and coastal humidity. Its 0.1 kVA rating at 60 Hz delivers efficient, reliable power for control panels and auxiliary circuits, while installation remains straightforward for retrofit projects. Choosing this encapsulated transformer supports compliance, reduces maintenance, and enhances overall system availability in demanding settings.
Product Information
Extended Description
QS20N11S82CU Eaton: Eaton Marine duty encapsulated transformer, marine duty encapsulated transformer, EPM, copper, NEMA 3R, 54, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 115 °C rise, 0.1 KVA, indoor-outdoor, 3A100Q
Product Name
Eaton Marine duty encapsulated transformer
Catalog Number
QS20N11S82CU
UPC
786680031755
Product Length/Depth
4 in
Product Height
8.91 in
Product Width
4.11 in
Product Weight
7 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
EPM
Enclosure
NEMA 3R
Frame
54
Tap size
None
Type
Marine Duty Encapsulated Transformer
Wiring connection
3A100Q
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
0.1 kVA
Weathershield
Indoor-Outdoor
Feature: Marine duty encapsulated transformer design (EPM) with copper windings → Business Impact: Robust thermal performance and moisture resistance for harsh environments → Application: On-board engines, offshore controls, and exposed panels. The copper windings offer improved conductivity and longevity in vibration-prone installations. Feature: NEMA 3R enclosure with indoor-outdoor capability → Business Impact: Weatherproof protection reduces corrosion risk and enables exterior panel siting → Application: Dockside electrical boxes and exposed vessel enclosures. Feature: Single-phase 60 Hz operation with 240/480 V primary and 120/240 V secondary → Business Impact: Flexible integration with common shipboard distribution systems → Application: Control circuits and auxiliary loads across mixed-voltage panels. Feature: 0.1 kVA rating in a compact footprint (4 in x 4.11 in x 8.91 in) → Business Impact: Space-efficient installation lowers cabinet footprint and simplifies retrofits → Application: Lightweight, modular power sources for compact marine controls. Feature: Weathershield Indoor-Outdoor and 3A100Q wiring → Business Impact: Easy mounting and wiring compatibility reduces install time and wiring errors → Application: Shore-to-vessel power distribution and remote instrumentation. Feature: UL Listed with warranty and Eaton support → Business Impact: Regulatory compliance and reduced risk during commissioning; predictable maintenance lifecycle → Application: Procurement and compliance tasks for marine projects.
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FAQs
The QS20N11S82CU is a marine-duty encapsulated transformer designed for on-board and offshore use. It provides 0.1 kVA of single-phase power at 60 Hz, with a 240/480 V primary and 120/240 V secondary, in a NEMA 3R enclosure for indoor-outdoor installation. Its UL Listing and copper windings support reliable operation in wet, salty environments and retrofit projects in compact control panels.
Key specs include 0.1 kVA rating, single-phase, 60 Hz frequency, primary voltage 240 V and 480 V, secondary voltage 120/240 V, copper windings, 115 °C rise, and a NEMA 3R enclosure suitable for indoor-outdoor use. The wiring connection is labeled 3A100Q, and the unit weighs about 7 lb with dimensions around 4 in by 4.11 in by 8.91 in.
Yes. The transformer uses a NEMA 3R enclosure and Weathershield capability for indoor-outdoor use, making it suitable for exterior panels on vessels or dockside installations. Copper windings and a compact form factor support reliable operation in vibration-prone, damp, and corrosive marine environments.
The QS20N11S82CU is UL Listed and features a NEMA 3R enclosure, providing assurance of electrical safety and weather-resistant performance. These certifications matter for regulatory compliance, safer commissioning, and reduced risk in marine and coastal installations.
Encapsulation and copper windings deliver durable performance with reduced moisture ingress risk, leading to lower maintenance needs. The unit’s small footprint simplifies installation, while the UL Listing and Eaton support offer predictable warranty coverage (one year from installation or 18 months from shipment), contributing to lower total cost of ownership in marine projects.