Eaton S48D12P02PCU General-Purpose Transformer - UL Listed
Part Number: S48D12P02PCU
Quick Summary
The S48D12P02PCU is a general-purpose encapsulated transformer for 480 V to 120 V control panels. This device helps reduce space and wiring complexity in crowded industrial enclosures, delivering a reliable secondary supply for automation equipment. A key challenge in panel design is protecting transformers from moisture and dust while maintaining quick serviceability; this unit's encapsulation and sturdy enclosure address that need. With UL Listed certification and a NEMA 3R enclosure for indoor-outdoor use, it supports safe operation across harsh environments. By combining robust thermal performance with a compact footprint, it enables tighter panel layouts and faster commissioning, while supporting long-term reliability and consistent voltage delivery for PLCs, relays, and instrumentation.
Product Information
Extended Description
S48D12P02PCU Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 68P, 60 Hz, single-phase, 480 V, 120 V, 2 at +2.5% FCAN, 2 at -2.5% FCBN, 115 °C rise, 2 KVA, indoor-outdoor, 579A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S48D12P02PCU
UPC
786680090950
Product Length/Depth
6.32 in
Product Height
13.78 in
Product Width
6 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
EP
Enclosure
NEMA 3R
Frame
68P
Tap size
2 at +2.5% FCAN, 2 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
579A
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
120 V
Temperature rise
115 °C rise
Volt ampere rating
2 kVA
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application: Epoxy-encapsulated copper windings provide excellent moisture and dust resistance, reducing the risk of degraded performance in dusty or humid factory environments. This translates to lower maintenance costs and fewer unplanned outages in automation cabinets. Application: ideal for rugged control panels in manufacturing lines where reliable power is critical. Feature → Business Impact → Application: NEMA 3R enclosure delivers indoor-outdoor protection, enabling outdoor-mounted transformers without enclosure upgrades. Benefit: extended service life and simplified installation in outdoor switchgear, reducing total installed cost. Application: outdoor machine rooms and protected enclosures in warehousing and process industries. Feature → Business Impact → Application: Tap changes at 2 positions (+2.5% FCAN, -2.5% FCBN) offer voltage regulation to maintain a tight 120 V secondary under fluctuating mains. Benefit: improved voltage stability for sensitive instrumentation and PLCs. Application: automation cabinets near variable power feeds. Feature → Business Impact → Application: 2 kVA, 60 Hz, single-phase design delivers sufficient power for small control loads with predictable performance. Benefit: shorter lead times, reduced footprint, and compatibility with standard 480 V to 120 V step-down applications. Application: motor starters, relays, sensors, and PLC-driven equipment. Feature → Business Impact → Application: Copper windings and EP encapsulation support high-temperature operation and thermal resilience (115 °C rise). Benefit: robust performance in high-ambient environments, lowering risk of thermal derating. Application: high-temperature factory floors and machine centers. Feature → Business Impact → Application: Compact dimensions (6.32 in L × 6 in W × 13.78 in H) and 42 lb weight enable easy mounting and fast installation in crowded panels. Benefit: faster commissioning and reduced labor costs during panel builds. Application: small footprint power supplies in compact automation enclosures.
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FAQs
Begin by verifying panel clearance for a 6.32 in L × 6 in W × 13.78 in H footprint and ensure mounting on a rigid surface. Connect the 480 V primary to the incoming supply with appropriate protective devices, then terminate the 120 V secondary to the load. The unit’s NEMA 3R enclosure supports outdoor or damp locations, but follow local electrical codes and torque specifications for 579A wiring connections.
This transformer is 2 kVA, single-phase, with a 480 V primary and a 120 V secondary, rated for 60 Hz operation. It includes tap changers at two positions: +2.5% FCAN and -2.5% FCBN, enabling voltage regulation to compensate for supply variation. Temperature rise is 115 °C, and the coil is copper with EP encapsulation for reliability.
Yes. The enclosure is NEMA 3R-rated for indoor-outdoor use, and the weathershield design supports exposure to environmental elements. This makes the transformer suitable for outdoor control cabinets, protected equipment rooms, and weather-exposed electrical panels, reducing the need for additional weatherproof enclosures and simplifying installation in harsh environments.
The S48D12P02PCU carries UL Listed certification, confirming conformity with electrical safety standards. It also features a rugged NEMA 3R enclosure and indoor-outdoor capability, which supports compliance in facilities with weather exposure. These features help streamline procurement for regulated environments and reduce risk during audits.
Epoxy-encapsulated copper windings and a robust enclosure reduce moisture ingress and dust-related degradation, lowering maintenance frequency and extending service life. The compact footprint speeds installation and commissioning, decreasing labor costs. With a 2 kVA rating, it serves typical panel loads efficiently, delivering reliable power for PLCs, relays, and instrumentation with predictable, low downtime.