Eaton S52D15B03CU Encapsulated Transformer - UL Listed
Part Number: S52D15B03CU
Quick Summary
Eaton S52D15B03CU encapsulated transformer provides reliable power isolation and step-down for control panels and industrial equipment. But selecting a unit that remains reliable in harsh environments and maintains precise voltage regulation is challenging. It is UL Listed for safety compliance and features a NEMA 3R enclosure, enabling indoor-outdoor service. Designed for industrial automation and factory controls, this 3 kVA, copper-wound transformer supports 460 V primary to 115 V secondary operation with 60 Hz performance, while offering easy integration with switchgear and panel boards. The unit’s rugged construction, clear tap settings, and Eaton warranty support lower total cost of ownership and improve uptime across demanding applications.
Product Information
Extended Description
S52D15B03CU Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 177, 60 Hz, single-phase, 460 V, 115 V, 2 at +2.5% FCAN, 2 at -2.5% FCBN, 80 °C rise, 3 KVA, indoor-outdoor, 517V
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S52D15B03CU
UPC
786680060588
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
122 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
EP
Enclosure
NEMA 3R
Frame
177
Tap size
2 at +2.5% FCAN, 2 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
517V
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
460 V
Secondary Voltage
115 V
Temperature rise
80 °C rise
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Copper windings and the encapsulated EP design deliver high efficiency and robust protection against moisture, dust, and vibration. This combination reduces stray losses and improves transformer life in demanding automation environments. For panel builders and machine integrators, the result is a transformer that starts quickly, runs cooler under load, and requires fewer service interventions. 3 kVA rating with 60 Hz single-phase operation supports typical control circuits and small motor loads without overloading. This tightens voltage regulation and reduces voltage drop across feeders, translating to reliable PLC inputs and fewer nuisance trips in busy lines. It is ideal for control cabinets and subpanels in manufacturing environments where uptime matters. Primary 460 V and secondary 115 V provide straightforward integration with standard plant power systems and equipment. Copper windings offer low impedance and long-term stability, minimizing heat and ensuring consistent performance during peak demand in automation modules and switchgear interfaces. NEMA 3R indoor-outdoor enclosure with indoor-outdoor Weathershield designation enables flexible installation across varied environments, reducing the need for extra enclosures. At 122 lb and a compact footprint (9.89 in L × 16 in H × 10.38 in W), it fits behind panels and on equipment racks, simplifying field deployment and service. Two taps at +2.5% and two at -2.5% provide precise voltage compensation to accommodate supply fluctuations without external components. This feature speeds commissioning and reduces wiring errors while supporting robust performance in fluctuating electrical networks. UL Listing and a one-year warranty (or 18 months from shipment) underpin predictable maintenance and cost of ownership for industrial users.
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FAQs
When installing the S52D15B03CU, plan for its NEMA 3R indoor-outdoor enclosure and 122 lb weight. Allocate space for the 9.89 in L × 16 in H × 10.38 in W footprint and ensure proper clearances for heat dissipation. Mounting should accommodate vibration and service access, with the taps set to the required +2.5% or -2.5% as needed during commissioning.
This unit is a 3 kVA, single-phase transformer rated for 60 Hz operation with a 460 V primary and 115 V secondary. Copper windings improve efficiency, and an 80 °C rise rating indicates suitable performance under typical load and ambient conditions. Tap changes include two at +2.5% FCAN and two at -2.5% FCBN for regulation under fluctuating input voltages.
Yes. The transformer’s 3 kVA rating, copper windings, and robust NEMA 3R enclosure make it ideal for factory automation, control cabinets, and small switchgear outputs. Its compact dimensions and weight facilitate panel mounting, while the voltage conversion from 460 V to 115 V supports common automation components and PLC inputs reliably.
UL Listed certification ensures electrical safety compliance, a critical requirement for most industrial facilities. The NEMA 3R enclosure supports indoor-outdoor installation, expanding placement options and reducing the need for additional protective enclosures. Together, these features help meet regulatory safety standards and simplify audits and maintenance planning.
Eaton provides a warranty per policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This coverage supports replacement or repair due to manufacturing defects and aligns with typical OEM service agreements for industrial transformers, helping protect uptime and budgeting for maintenance.