Eaton S48N12E01CULS42 Encapsulated Transformer - UL Listed
Part Number: S48N12E01CULS42
Quick Summary
The Eaton S48N12E01CULS42 encapsulated transformer delivers reliable control power for motor starters, PLCs, and control panels in industrial environments. When space is at a premium or harsh environments threaten equipment reliability, traditional open transformers can suffer moisture ingress and dust contamination. This general-purpose encapsulated transformer uses copper windings and an EP encapsulated design to resist moisture, dust, and vibration, while a NEMA 3R enclosure supports indoor-outdoor installation. UL Listed certification provides electrical safety assurances, and the 1 kVA rating aligns with common control-power loads in automation panels. With a low 42 dB sound rating and 60 Hz single-phase operation, it minimizes noise and heat in crowded electrical rooms, delivering predictable performance for OEMs and integrators.
Product Information
Extended Description
S48N12E01CULS42 Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 59A, 60 Hz, low sound 42 dB, single-phase, 480 V, 120 V, NONE, 115 °C rise, 1 KVA, indoor-outdoor, 77J
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S48N12E01CULS42
UPC
786680090912
Product Length/Depth
5.75 in
Product Height
11.28 in
Product Width
5.99 in
Product Weight
27 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
Catalog Notes
Low sound equal to 42 dB
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Frame
59A
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
77J
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
120 V
Temperature rise
115 °C rise
Volt ampere rating
1 kVA
Modification 1
Low sound 42 dB
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Feature: Copper windings and EP encapsulation provide robust insulation and moisture resistance. Benefit: Enhances reliability in challenging environments, reducing maintenance intervals and extending service life in automation panels. Application: Suitable for motor controls and PLC power supplies in production lines where dust, humidity, and vibration are concerns. Feature: NEMA 3R enclosure with indoor-outdoor capability. Benefit: Enables safe operation in both indoor cabinets and exterior enclosures without additional housings, saving space and cost. Application: Ideal for outdoor switchgear or exposed panels in manufacturing facilities. Feature: 1 kVA, single-phase, 480 V to 120 V, 60 Hz. Benefit: Delivers dependable control power for common automation loads with straightforward wiring and compatibility with standard control circuits. Application: Powering relays, contactors, and small drives in machine centers. Feature: Low sound 42 dB and electrostatically shielded construction. Benefit: Reduces acoustical impact in noise-sensitive areas and improves EMI resilience, aiding compliance with plant noise policies. Application: Environments requiring quiet operation near operator stations or offices. Feature: Weathershield indoor-outdoor capability and 77J wiring connection. Benefit: Simplifies installation planning and wiring, enabling flexible mounting and connection to existing panel layouts. Application: OEMs integrating transformers into compact control panels or field-installed starters. Feature: 60 Hz, UL Listed, 115 °C rise, 1 KVA rating, copper coil. Benefit: Ensures regulatory compliance, safe operation under standard temperature rises, and efficiency for continuous-duty use. Application: Industrial automation, material handling, and process control systems requiring dependable auxiliary power.
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FAQs
Yes. The transformer provides 480 V primary input and 120 V secondary output at 60 Hz, making it a straightforward fit for typical control circuits in standard automation panels. Its encapsulated EP design helps ensure reliability in varying environments.
The NEMA 3R enclosure supports indoor-outdoor installation, protecting windings from moisture, dust, and weather exposure. This simplifies site planning for outdoor equipment and reduces the need for additional protective housings, saving space and cost.
Key specs include a 1 kVA rating, single-phase design, 60 Hz frequency, copper windings, and a 115 °C rise rating. These values support reliable control-power for relays, contactors, and PLCs while maintaining efficient operation and safe heat dissipation.
Yes. The unit is UL Listed, which provides established safety compliance for electrical components in many industrial environments. Its encapsulated construction also contributes to safer operation in panels and restricted spaces.
The transformer is backed by Eaton’s warranty policy and designed for long life with copper windings and robust encapsulation. Routine checks for enclosure integrity and electrical connections are recommended, but the rugged design helps minimize maintenance needs in typical panel environments.