Eaton QS20N11S16CU Marine-duty transformer - UL Listed
Part Number: QS20N11S16CU
Quick Summary
QS20N11S16CU marine-duty encapsulated transformer provides reliable isolation and voltage transformation for on-board power distribution. Shipboard panels face moisture, vibration, and space constraints that complicate dependable power delivery. UL Listed certification, NEMA 3R enclosure, and copper-wound EPM design underpin durability and regulatory compliance in harsh marine environments. Compact enough to fit tight spaces, the unit also supports 1.5 kVA loads, helping you consolidate transformers and reduce panel complexity while maintaining safe operation in 60 Hz, single-phase systems.
Product Information
Extended Description
QS20N11S16CU Eaton: Eaton Marine duty encapsulated transformer, marine duty encapsulated transformer, EPM, copper, NEMA 3R, 67, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 115 °C rise, 1.5 KVA, indoor-outdoor, 3A16Q
Product Name
Eaton Marine duty encapsulated transformer
Catalog Number
QS20N11S16CU
UPC
786680031816
Product Length/Depth
6.52 in
Product Height
13.41 in
Product Width
6.37 in
Product Weight
42 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
67
Tap size
None
Type
Marine Duty Encapsulated Transformer
Wiring connection
3A16Q
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
1.5 kVA
Weathershield
Indoor-Outdoor
FeatureCopper winding and epoxy encapsulation (EPM) delivers robust thermal performance, reducing copper loss and providing high vibration resistance, which translates to lower maintenance costs and longer service life in demanding marine settings. Business ImpactImproved reliability and reduced downtime in critical power paths. ApplicationInstalled in engine rooms or distribution panels where space is at a premium and vibration is common.FeatureNEMA 3R indoor-outdoor enclosure offers weatherproof protection against moisture and corrosion. Business ImpactExtends service life in exposed deck and wet-damp environments, reducing corrosion-related failures. ApplicationSuitable for outdoor equipment enclosures and shipboard installations exposed to the elements.Feature1.5 kVA rating at 60 Hz with single-phase operation; flexible primary 240 V / 480 V and secondary 120/240 V. Business ImpactSupports common vessel loads and streamlines power routing, potentially reducing the number of transformers in a system. ApplicationIdeal for small-to-mid-size marine power distribution panels.FeatureCopper windings and 60 Hz operation matched with 3A16Q wiring; temperature rise of 115 °C. Business ImpactEnsures efficient heat management and reliable performance under normal and peak loads. ApplicationUsed in standard shipboard power distribution where stable voltage and insulation are critical.FeatureCompact footprint (6.52 in L × 6.37 in W × 13.41 in H), 42 lb weight with versatile indoor-outdoor use. Business ImpactEases installation in tight spaces and retrofit projects, lowering installation time and supporting modular plant layouts. ApplicationFits compact marine enclosures and retrofit upgrades in redeployed vessels.
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FAQs
The QS20N11S16CU supports primary voltages of 240 V and 480 V with a secondary output of 120/240 V. This configuration enables flexible integration into standard vessel electrical systems while maintaining isolation and power quality for sensitive equipment.
It features a NEMA 3R enclosure and is designed for indoor-outdoor applications, providing weatherproof protection against moisture, corrosion, and exposure in marine environments such as deck or engine rooms.
Rated at 1.5 kVA with 60 Hz frequency in a single-phase configuration, it uses copper windings and has a temperature rise of 115 °C, delivering reliable power transformation for shipboard panels.
The transformer is UL Listed and carries a warranty of one year from installation or eighteen months from shipment, whichever occurs first, ensuring regulatory compliance and post-purchase support.
Dimensions are 6.52 in L × 6.37 in W × 13.41 in H with a weight of 42 lb. The 3A16Q wiring connection simplifies panel wiring, making retrofit or new-build installs more straightforward in constrained spaces.