Eaton S29N27S16 Transformer - UL Listed, NEMA 3R
Part Number: S29N27S16
Quick Summary
The Eaton S29N27S16 transformer provides reliable single-phase power isolation and 208/277 V step-down for control panels. Engineers often grapple with limited mounting space and weather exposure when selecting transformers for harsh environments. UL Listed certification ensures electrical safety compliance, while the NEMA 3R enclosure supports indoor-outdoor use across a wide temperature range. Designed for low-voltage distribution in industrial power systems, it delivers 1.5 kVA from a compact footprint, enabling easier panel layouts and reduced installation time. This makes it a practical choice for OEMs and service teams seeking durable performance without sacrificing facility space or uptime.
Product Information
Extended Description
S29N27S16 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 67, 60 Hz, single-phase, 208 V, 277 V, NONE, 115 °C rise, 1.5 KVA, indoor-outdoor, 519H
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S29N27S16
UPC
786680050749
Product Length/Depth
6.52 in
Product Height
13.41 in
Product Width
6.37 in
Product Weight
41.5 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
67
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
519H
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
208 V
Secondary Voltage
277 V
Temperature rise
115 °C rise
Volt ampere rating
1.5 kVA
Weathershield
Indoor-Outdoor
Feature: 1.5 kVA rating with a 208 V primary and 277 V secondary at 60 Hz. Business impact: Enables reliable power for modest loads in control panels without oversizing equipment, reducing upfront cost, heat, and energy waste. Application: Ideal for OEMs and panel builders needing efficient voltage conversion for 277 V lighting circuits, small motors, and automation controllers within compact enclosures. Feature: Encapsulated EP construction with aluminum windings and a NEMA 3R enclosure. Business impact: Delivers rugged moisture resistance and long-term reliability in mixed indoor-outdoor environments, easing installation in damp factories or outdoor spaces and lowering maintenance costs. Application: Outdoor-rated panels, equipment rooms, and harsh production lines where weather exposure or temperature variation is a concern. Feature: 115 °C rise rating and 60 Hz operation. Business impact: Supports robust thermal performance for continuous operation, minimizing derating, downtime, and cooling requirements. Application: High-load control panels in manufacturing lines, conveyors, and robotics cells where ambient conditions vary and dependable voltage regulation is critical. Feature: Wiring connection 519H and single-phase configuration. Business impact: Simplifies field termination and reduces installation time with standardized connections. Application: Panel assemblies in automation systems, where consistent terminations speed up commissioning. Feature: UL Listed and indoor-outdoor readiness with a durable enclosure. Business impact: Provides compliance confidence and installation flexibility, shortening validation cycles for audits and customer approvals. Application: Any industry requiring safe, approved transformer installations inside control panels or outdoor enclosures.
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FAQs
The S29N27S16 uses a 519H wiring connection and is housed in a NEMA 3R enclosure suitable for both indoor and outdoor installations. This combination supports straightforward field terminations, weather resistance, and flexible mounting in compact control panels. The design aligns with 60 Hz, 208 V to 277 V circuits, simplifying panel layouts and reducing wiring complexity.
It is a single-phase transformer rated at 1.5 kVA with a 208 V primary and 277 V secondary, operating at 60 Hz. The 115 °C rise rating indicates robust thermal performance under continuous duty, while aluminum windings offer a cost- and weight-conscious solution without sacrificing reliability for typical industrial loads.
Yes. The 277 V secondary makes it compatible with commercial lighting and related control circuits designed for 277 V. Ensure the total load does not exceed 1.5 kVA and that feeders and breakers in the panel are sized to match. This transformer helps consolidate lighting and control loads within a single, compact power source.
The S29N27S16 is UL Listed and housed in a NEMA 3R enclosure. UL Listing confirms adherence to electrical safety standards for industrial environments, while NEMA 3R provides weather resistance for indoor-outdoor installations. These certifications support regulatory compliance, streamline audits, and expand installation options across facilities.
Encapsulation and aluminum windings reduce moisture ingress and maintenance needs, extending service life in challenging environments. With a compact 1.5 kVA rating and indoor-outdoor capability, you gain space efficiency and uptime. The warranty terms and Eaton support further stabilize total cost of ownership for OEMs and maintenance teams.