Eaton S48N29B26 Encapsulated Transformer - UL Listed
Part Number: S48N29B26
Quick Summary
Encapsulated transformer enables reliable power isolation for control panels in industrial environments. Engineers often contend with moisture, dust, vibration, and space constraints that erode reliability and drive downtime. This Eaton S48N29B26 unit offers UL Listed protection with a NEMA 3R enclosure, designed for indoor-outdoor service in challenging facilities. Its 0.25 kVA, single-phase rating and 60 Hz operation support common automation loads while reducing cabinet size and wiring complexity. The aluminum coil provides durability against corrosion, while the encapsulated construction minimizes moisture ingress and heat paths. By combining a compact footprint with robust protection, it delivers consistent performance, simpler installation, and a faster return on investment for panel builders and maintenance teams.
Product Information
Extended Description
S48N29B26 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 56, 60 Hz, single-phase, 480 V, 208 V, NONE, 80 °C rise, 0.25 KVA, indoor-outdoor, 536B
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S48N29B26
UPC
786680094262
Product Length/Depth
4.06 in
Product Height
8.97 in
Product Width
4.87 in
Product Weight
12 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
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
56
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
536B
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
208 V
Temperature rise
80 °C rise
Volt ampere rating
0.25 kVA
Weathershield
Indoor-Outdoor
Feature: Encapsulated construction with aluminum windings shields the core and windings from moisture and contaminants. This protection translates into higher reliability and significantly lower maintenance in damp, dusty, or vibrating environments. Application: perfect for machine control panels, outdoor-rated enclosures, and harsh factory corners where uptime matters. Feature: 0.25 kVA, single-phase design with 60 Hz operation and a 480 V to 208 V secondary. Business Impact: supports common automation loads without over-sizing, reducing panel footprint and wiring complexity. Application: directly replaces older transformers in control circuits, enabling smoother integration with standard automation components. Feature: NEMA 3R enclosure and indoor-outdoor rating provide weather-resistant performance. Impact: ensures safe operation across seasonal changes and rooftop or factory floor installations, cutting climate-related downtime. Application: suitable for indoor spaces adjacent to outdoor equipment, as well as exposed indoor locations. Feature: UL Listed certification simplifies procurement and regulatory compliance. Impact: accelerates approval cycles for equipment builds and reduces risk during audits. Application: ideal for panel assemblies in regulated industries where safety certifications are mandatory. Feature: Compact footprint (4.06 in length, 4.87 in width, 8.97 in height) and 12 lb weight enable easy mounting in tight panels. Impact: lower cabinet size, easier retrofits, and reduced installation labor. Application: retrofit projects and new installations with limited space. Feature: Wiring connection 536B and no tap size simplify installation in standard electrical cabinets. Impact: faster wiring and fewer mistake-prone steps. Application: compatible with common control wiring harnesses and industry-standard connections.
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FAQs
The S48N29B26 uses a fixed 536B wiring connection, eliminating tap settings and simplifying wiring harness routing. Ensure the enclosure has adequate clearance for the 4.06 x 4.87 x 8.97 inch footprint and observe clearances for heat dissipation. Use appropriate lugs or connectors rated for 480 V primary and 208 V secondary circuits. Verify UL Listed installation guidelines and panel standards prior to final mounting.
Key specs include 0.25 kVA VA rating, single-phase, 60 Hz, primary voltage 480 V, secondary voltage 208 V, and aluminum windings. The device is UL Listed and designed with a NEMA 3R enclosure for indoor-outdoor use. Temperature rise is listed at 80 °C, and the unit weighs about 12 lb with compact dimensions suitable for tight panel spaces.
Yes. The transformer features a NEMA 3R enclosure and indoor-outdoor capability, making it appropriate for outdoor-rated control panels, sheltered exterior locations, and demanding factory floors. Its encapsulated design further protects windings from moisture and contaminants, reducing the risk of corrosion and ampacity drift in harsh climates.
This unit is UL Listed, confirming safety compliance for electrical components used in industrial systems. The NEMA 3R enclosure supports environmental protection for indoor-outdoor installations. Together, these certifications streamline procurement, support regulatory audits, and reduce risk when integrating into compliance-driven control panels and automation schematics.
Encapsulation and aluminum windings reduce moisture-related degradation and corrosion, lowering maintenance needs and extending service life. Its compact footprint, light weight, and straightforward 536B wiring simplify installation, cutting labor and panel space costs. The combination of UL Listed safety, rugged enclosure, and a modest 0.25 kVA rating contributes to faster ROI through reduced downtime and easier retrofits.