Eaton S57N11P01P General Encapsulated Transformer NEMA 3R

Part Number: S57N11P01P
Manufacturer
Eaton
Part number
S57N11P01P

Quick Summary

The Eaton S57N11P01P general encapsulated transformer is designed for rugged control panels, delivering reliable 575 V to 120/240 V power in single‑phase systems. Industry pain points like outdoor exposure, moisture ingress, and complex tap configurations are addressed by its NEMA 3R enclosure, epoxy encapsulation, and No Taps design. This product carries CSA Certified and UL Listed certifications, and its 60 Hz, 115 °C rise, and EP construction align with common industrial and regulatory requirements. By simplifying installation and improving panel reliability, it supports maintenance efficiency, safety compliance, and cost-effective power management in general‑purpose facilities.

Product Information

Extended Description

S57N11P01P Eaton: Eaton General purpose encapsulated transformer, ep, NEMA 3R, 60 Hz, single-phase, 575 V, 120/240 V, No Taps, 115 °C rise, 1
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S57N11P01P
UPC
786680079856
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 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
CSA Certified UL Listed
Enclosure
NEMA 3R
Tap size
No Taps
Type
EP
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
575 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
1
Feature: General purpose encapsulated transformer construction with epoxy encapsulation delivers enhanced insulation integrity, resistance to moisture, and sustained performance in fluctuating ambient conditions. Business Impact: This robust protection translates into lower maintenance, reduced insulation degradation, and longer service life for critical control circuits in demanding facilities. Application: Ideal for electrical control panels, machine enclosures, and distributed power sections in manufacturing plants where reliable voltage transfer and compact footprint are essential. Feature: NEMA 3R enclosure provides dependable protection against rain, dust, and incidental exposure, enabling safer operation in both indoor and outdoor environments. Business Impact: By withstanding harsh conditions, the unit minimizes unplanned downtime and slashes maintenance cycles, delivering predictable performance across seasons. Application: Suitable for service panels, outdoor equipment rooms, and rugged process lines where environmental barriers are necessary. Feature: 60 Hz frequency rating with single‑phase operation, primary 575 V and secondary 120/240 V, supports standard control voltages and straightforward integration with existing power architectures. Business Impact: Facilitates easy wiring, reduces impedance mismatches, and helps engineers achieve stable load transfer with minimal transformer losses. Application: Control panels, PLC power supplies, sensors, and small-motor circuits in manufacturing and building automation projects. Feature: No taps on the secondary winding simplifies routing, eliminates tap-changing hardware, and shortens installation time for panel builders. Business Impact: Cuts labor costs, minimizes commissioning delays, and lowers the risk of incorrect tap configurations that could affect voltage regulation. Application: General-purpose distribution in industrial settings where fixed secondary voltages meet design requirements and standardization is preferred. Feature: Warranty and certifications—CSA Certified and UL Listed—provide regulatory assurance and traceability for procurement teams and quality auditors. Business Impact: Enhances supplier confidence, streamlines compliance documentation, and supports risk management by aligning with recognized safety standards. Application: Industrial installations and panel builds requiring certified components with documented warranty coverage and post‑sale support.

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FAQs

The S57N11P01P is ideal for electrical control panels, machine enclosures, and outdoor or damp locations where rugged environmental protection is required. Its EP epoxy encapsulation and NEMA 3R enclosure support stable operation in industrial facilities, reducing maintenance and downtime while meeting safety standards.
Yes. The device is designed for 575 V primary input and 120/240 V secondary output in a single‑phase, 60 Hz configuration. This makes it well-suited for standard control circuits, PLC power supplies, sensors, and other low‑voltage loads within industrial power architectures.
No. The secondary winding has no taps, providing fixed 120/240 V outputs. This simplifies wiring, reduces installation time, and lowers the risk of incorrect tap settings during panel assembly and commissioning.
The transformer is CSA Certified and UL Listed, which confirms compliance with recognized electrical safety standards. These certifications support regulatory approvals, supplier accountability, and smoother procurement processes for certified panels and equipment.
Expect reduced maintenance due to robust encapsulation and protective enclosure, plus faster installation with no taps. The 1 VA rating, along with UL/CSA certification and a defined warranty, contributes to predictable performance, lower downtime, and improved overall return on investment in controlled environments.