Eaton QS20N11S51CU Encapsulated Transformer - UL Listed

Manufacturer
Eaton
Part number
QS20N11S51CU

Quick Summary

Eaton QS20N11S51CU encapsulated transformer is a compact power conversion device for rugged marine and outdoor electrical systems. Engineers struggle with moisture, vibration, and space constraints in harsh environments, risking downtime and costly maintenance. UL Listed safety certification and a NEMA 3R enclosure rating deliver reliable protection in exposed locations, while copper windings support efficient power transfer. Its 0.5 kVA rating, 60 Hz single-phase performance, and 120/240 V secondary enable flexible, install-friendly power delivery for marine panels and instrumentation.

Product Information

Extended Description

QS20N11S51CU Eaton: Eaton Marine duty encapsulated transformer, marine duty encapsulated transformer, EPM, copper, NEMA 3R, 57, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 115 °C rise, 0.5 KVA, indoor-outdoor, 3A500Q
Product Name
Eaton Marine duty encapsulated transformer
Catalog Number
QS20N11S51CU
UPC
786680031786
Product Length/Depth
4.91 in
Product Height
8.97 in
Product Width
4.87 in
Product Weight
16 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
57
Tap size
None
Type
Marine Duty Encapsulated Transformer
Wiring connection
3A500Q
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
0.5 kVA
Weathershield
Indoor-Outdoor
Feature: Marine-duty encapsulated design with a NEMA 3R enclosure and copper windings. Business Impact: This combination delivers robust moisture, dust, and corrosion protection while maintaining efficient heat management in exposed locations. Application: Ideal for ships, docks, and outdoor equipment where weather exposure and space constraints demand reliable, long-life power transfer. Feature: Copper coil windings and EPM construction. Business Impact: Copper windings minimize resistance losses and improve heat dissipation, boosting overall efficiency and lowering operating costs over the life of the unit. Application: Suitable for critical control panels and instrumentation requiring stable voltage in demanding environments. Feature: 0.5 kVA rating with primary 240/480 V and secondary 120/240 V. Business Impact: Flexible voltage options support a wide range of loads, reducing the need for multiple transformers and simplifying panel design. Application: Shipboard power distribution and outdoor facilities with mixed-voltage equipment. Feature: 60 Hz single-phase operation. Business Impact: Aligns with common North American electrical standards, easing procurement and compatibility checks. Application: Marine and outdoor systems powering pumps, sensors, and auxiliary equipment. Feature: Weathershield Indoor-Outdoor with UL Listed. Business Impact: Streamlines compliance, testing, and maintenance planning while supporting outdoor installation. Application: Installations across indoor and outdoor spaces, including exposed marine and dockside environments. Feature: Compact dimensions and weight (4.91 in L x 4.87 in W x 8.97 in H, 16 lb). Business Impact: Facilitates easy mounting in space-constrained panels and compact enclosures. Application: Panel-mounted solutions on vessels, barges, and dockside equipment where footprint matters.

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FAQs

The unit provides a 120/240 V secondary from a 240/480 V primary, operating at 60 Hz single-phase, making it suitable for shipboard control panels and instrumentation.
It uses a NEMA 3R enclosure suitable for indoor-outdoor installations, protecting windings from weather, dust, and moisture.
Wiring connection is 3A500Q; dimensions are 4.91 in length, 4.87 in width, 8.97 in height, and weight is 16 lb, enabling flexible panel mounting in constrained spaces.
0.5 kVA rating, copper coil, 60 Hz, 120/240 V secondary, 240/480 V primary, temperature rise of 115 °C, and UL Listed safety certification support reliability.
UL Listed safety certification applies, with Eaton warranty policy 25-000 offering one year from installation or 18 months from shipment, whichever occurs first.