Eaton S57G12P16P General-Purpose Encapsulated Transformer - UL Listed
Part Number: S57G12P16P
Quick Summary
S57G12P16P is a general purpose encapsulated transformer for reliable 60 Hz power conversion in industrial facilities. Engineers often struggle with weather exposure, space constraints, and installation complexity across control panels and distribution systems. UL Listed protection and a NEMA 3R enclosure support safe indoor-outdoor operation, backed by an indoor-outdoor Weathershield design. Designed as a 1.5 kVA transformer with 575 V primary to 120 V secondary, it fits compact panels and distribution boards while delivering consistent performance in varying environments. This combination reduces downtime and simplifies procurement for facilities and panel builders alike.
Product Information
Extended Description
S57G12P16P Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 67P, 60 Hz, single-phase, 575 V, 120 V, 2 at -5% FCBN, 115 °C rise, 1.5 KVA, indoor-outdoor, 535AC
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S57G12P16P
UPC
786680094224
Product Length/Depth
6.56 in
Product Height
13.03 in
Product Width
5.53 in
Product Weight
31 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
67P
Tap size
2 at -5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
535AC
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
575 V
Secondary Voltage
120 V
Temperature rise
115 °C rise
Volt ampere rating
1.5 kVA
Weathershield
Indoor-Outdoor
Feature: General-Purpose Encapsulated Design → Business Impact: Protects windings from contaminants and moisture, extending service intervals and lowering maintenance costs. Application: Suitable for indoor-outdoor installations in control panels and power distribution enclosures. Feature: 60 Hz, Single-Phase Operation → Business Impact: Optimized for common facility power infrastructure, reducing voltage sag during startup and improving load response. Application: Industrial machinery and automation panels requiring stable 120 V secondary power. Feature: 575 V Primary / 120 V Secondary → Business Impact: Safe voltage isolation with wide compatibility in plant utilities, enabling seamless integration with existing equipment. Application: Step-down in machine controls and low-voltage distribution points. Feature: 1.5 kVA VA Rating → Business Impact: Balances footprint and capacity, enabling smaller form-factor power conversion without over-sizing. Application: Powering control circuits, relays, and instrumentation in compact enclosures. Feature: Aluminum Coil Material → Business Impact: Lighter weight and corrosion resistance, simplifying handling and installation in diverse environments. Application: Field installs and retrofit projects where weight reduction matters. Feature: Tap Size 2 at -5% FCBN → Business Impact: Voltage regulation capability to compensate for line drop and impedance, improving output stability. Application: Panel boards with variable input conditions and long cable runs. Feature: NEMA 3R Enclosure → Business Impact: Weather-resistant protection that reduces enclosure maintenance and extends outdoor service life. Application: Outdoor equipment rooms, rooftops, or weather-exposed areas. Feature: UL Listed Certification → Business Impact: Meets safety and compliance expectations, facilitating regulatory approvals and supplier audits. Application: Industrial facilities, food & beverage, and critical infrastructure sectors. Feature: Indoor-Outdoor Weathershield → Business Impact: Consistent performance across indoor and outdoor installations, minimizing routing constraints. Application: Mixed environments where equipment moves between controlled spaces and exterior locations.
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FAQs
Install the S57G12P16P in a NEMA 3R rated enclosure and ensure proper clearance for ventilation. Use the 535AC wiring connection and connect primary 575 V to the incoming distribution, with the 120 V secondary feeding control circuits. Verify tap settings at -5% FCBN if voltage regulation is required, and secure the enclosure to a stable surface.
This model is a single-phase transformer rated at 1.5 kVA with a 575 V primary and 120 V secondary, operating at 60 Hz. It features two taps at -5% FCBN for voltage regulation and uses aluminum windings. The enclosure is NEMA 3R suitable for indoor-outdoor use, and it is UL Listed for safety compliance.
Yes. The transformer uses a NEMA 3R enclosure and an indoor-outdoor Weathershield design, providing weather resistance for exterior or semi-exterior installations. Combined with UL Listed safety, it is well-suited for outdoor control panels, equipment rooms, and exposed utility areas.
The unit is UL Listed for safety compliance and features a NEMA 3R enclosure for outdoor protection. Its design, including aluminum windings and weather-resistant enclosure, supports reliability in diverse environments while meeting industry safety standards.
The 1.5 kVA, single-phase design with robust enclosure reduces downtime, simplifies installation, and lowers maintenance costs due to fewer ingress-related issues. Aluminum windings and reliable voltage regulation with -5% FCBN taps help maintain consistent performance, improving panel uptime and overall system reliability.