Eaton S29D11S07 Transformer - UL Listed 7.5 kVA
Part Number: S29D11S07
Quick Summary
S29D11S07 transformer is a general-purpose encapsulated transformer used to step down 208 V to 120/240 V for control panels. Installers often struggle with space constraints and corrosion exposure in harsh environments. UL Listed safety, a NEMA 3R enclosure for indoor-outdoor use, and 60 Hz operation ensure reliable field performance. Tap options include 2 at +2.5% FCAN and 2 at -2.5% FCBN, enabling tighter voltage regulation on sensitive loads. Its indoor-outdoor capability, compact footprint, and 7.5 kVA rating support reliable power distribution in controls and automation panels. Designed for 60 Hz operation and UL-listed safety, it also meets the rugged demands of mounted transformer installations in service areas. By offering reliable voltage conversion and robust enclosure, it helps reduce downtime, simplify maintenance, and improve panel performance.
Product Information
Extended Description
S29D11S07 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 178, 60 Hz, single-phase, 208 V, 120/240 V, 2 at +2.5% FCAN, 2 at -2.5% FCBN, 115 °C rise, 7.5 KVA, indoor-outdoor, 19E
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S29D11S07
UPC
786680071584
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
130 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
178
Tap size
2 at +2.5% FCAN, 2 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
19E
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
208 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
7.5 kVA
Weathershield
Indoor-Outdoor
7.5 kVA single-phase capacity paired with a 208 V primary and 120/240 V secondary sets a robust foundation for control panels and automation cabinets. The aluminum coil reduces weight and material cost while maintaining excellent thermal performance, and the EP encapsulation provides moisture and dust resistance in demanding environments. The 60 Hz frequency and UL Listed certification meet typical U.S. industrial standards, while the 178 frame and compact 9.89-inch depth support easier installation in crowded panels. This combination translates to consistent voltage transformation with predictable regulation for sensitive loads. Internal tap settings further strengthen reliable operation. The S29D11S07 offers two taps at +2.5% FCAN and two taps at -2.5% FCBN, enabling tighter voltage regulation on critical loads without swapping windings. The enclosure is designed for indoor-outdoor use with a weather-resilient NEMA 3R rating, making it suitable for basements, outdoors, and harsh factory floors. The 7.5 kVA rating supports modest to heavy control-power needs while preserving energy efficiency and thermal stability under continuous operation. From a maintenance perspective, the aluminum winding and encapsulated construction reduce corrosion pathways and simplify inspection routines. With UL Listed certification and Eaton warranty, you gain auditable safety compliance and predictable service windows. The unit’s 178 frame and 9.89 x 10.38 x 16 inch footprint help technicians plan mounting and cable routing in limited spaces. Designed for reliability, the S29D11S07 supports long service life in demanding industrial environments. Compatibility and installation advantages are reinforced by the 19E wiring connection note, which supports standard Eaton wiring practices and simplifies panel wiring changes. The epoxy encapsulation protects windings from moisture and dust, minimizing maintenance outages in damp factory floors or outdoor pads. For retrofit projects, the S29D11S07's footprint and 178 frame align with common transformer busways and mounting rails, while the UL Listing aids risk assessments and procurement decisions in regulated facilities.
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FAQs
Plan for enclosure clearance and mounting using the 178 frame with a footprint of 9.89 in by 10.38 in and a height of 16 in. The unit weighs about 130 lb and uses a 19E wiring connection. Ensure adequate ventilation and access to the 208 V primary and 120/240 V secondary terminals, while respecting clearance for taps and termination hardware.
The 7.5 kVA single-phase rating accommodates typical control-panel power needs, including PLC power supplies, relay modules, and modest servo drives. It maintains voltage regulation at 60 Hz under standard panel loads. For high-inrush or peak-demand machines, distribute power across feeds or consider a larger transformer to avoid saturation and voltage drop.
The transformer provides two +2.5% FCAN taps and two -2.5% FCBN taps, allowing operators to compensate upstream fluctuations and maintain tighter output voltage under varying load or supply conditions. Proper tap selection reduces voltage deviation on critical circuits, improving equipment performance and reducing nuisance trips in sensitive controls.
Yes. The S29D11S07 is housed in a NEMA 3R indoor-outdoor enclosure and carries UL Listing, making it appropriate for basements, outdoor pads, and exposed factory floors. Its Weathershield capability supports weather resistance, while the EP encapsulation and aluminum windings provide protection against moisture and dust for reliable operation.
The transformer carries Eaton’s warranty of one year from installation or eighteen months from shipment, whichever occurs first. UL Listing confirms safety compliance. For ongoing support, consult the Eaton specification sheet and distributor resources; routine maintenance should include inspecting enclosure seals, checking tap connections, and monitoring temperature rise to ensure continued reliability.