Eaton Open Core-Coil Transformer T27M23S10ZZ - UL Recognized
Part Number: T27M23S10ZZ
Quick Summary
Eaton Open Core-Coil Transformer delivers reliable 10 kVA power distribution for industrial panels. Panel builds often face voltage drift, limited ventilation, and misaligned specifications that cause overheating and unplanned downtime. UL Recognized safety certification, open-core ventilation, and the DS-3 design support safer, standards-compliant installations in harsh environments. With primary 277 V and secondary 230 V, selectable taps (+2.5% FCAN and -2.5% FCBN) improve voltage regulation across mixed loads, reducing nuisance trips and equipment wear. Coupled with a 143 lb aluminum-wound transformer in a compact 815C frame, the unit simplifies installation, reduces field labor, and lowers total cost of ownership for facilities and automation projects.
Product Information
Extended Description
T27M23S10ZZ Eaton: General-Purpose Transformer, Ventilated, Dry Type Distribution, DS-3, Single-phase, PV: 277V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 230V, 150°C, 10 kVA, Al windings, Frame: 815C
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
T27M23S10ZZ
UPC
786680060359
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
143 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 Recognized
Catalog Notes
Open type core and coil assembly
Coil material
Aluminum
Design
DS-3
Frame
815C
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
Dry Type Distribution Transformer
Frequency rating
60 Hz
Kva Rating
10 kVA
Phase
Single-phase
Primary voltage
277 V
Secondary Voltage
230 V
Temperature rise
150 °C rise
Feature: 10 kVA single-phase design provides compact, predictable power for control panels and machine centers. Impact: minimizes footprint while delivering stable energy for automation controllers and drives, improving line uptime. Application: factory automation, machine tool integrations, packaging lines. Feature: Open core-coil ventilated construction enhances air flow and cooling. Impact: lowers thermal stress on insulation and extends service life, reducing maintenance windows. Application: harsh factory floors and continuous-process lines where heat is a concern. Feature: Tap adjustments with 2 x +2.5% and 4 x -2.5% options. Impact: precise voltage regulation for sites with fluctuating supply, protecting sensitive electronics and reducing nuisance trips. Application: systems with variable utility voltage and mixed-load panels. Feature: Aluminum windings and frame 815C. Impact: robust, corrosion-resistant construction with good heat dissipation, supporting long service life in demanding environments. Application: industrial control panels and distribution blocks exposed to ambient stress. Feature: UL Recognized certification and open-type core-and-coil assembly. Impact: simplifies compliance, procurement, and maintenance planning, while aligning with standard Eaton components. Application: utility-adjacent facilities, OEM builds, and retrofit projects needing reliable safety certification. Feature: 60 Hz operation and 277 V to 230 V secondary. Impact: compatibility with common North American electrical systems, ease of integration with existing equipment, and streamlined installation in panel boards. Application: manufacturing lines, process equipment, and automation racks.
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FAQs
The T27M23S10ZZ is a dry-type, open-core, single-phase transformer designed for 60 Hz systems with a 277 V primary and 230 V secondary. It fits standard industrial panels and distribution boards, supports DS-3 design, and pairs well with Eaton component ecosystems for straightforward field retrofits and OEM builds.
Key specs include 10 kVA rating, single-phase, 60 Hz frequency, primary voltage 277 V, secondary voltage 230 V, aluminum windings, 815C frame, and a temperature rise of 150 °C. The unit offers taps of +2.5% FCAN and -2.5% FCBN to improve voltage regulation under variations in supply voltage.
Yes, the T27M23S10ZZ is UL Recognized. Documentation is available via Eaton’s catalogs and datasheets, including the Commercial Distribution transformers Volume 2 tab and the Eaton Specification Sheet for T27M23S10ZZ. Access to these assets helps verify compliance and supports safe installation in your control panels.
The open core-coil, ventilated construction facilitates better air flow and cooling, reducing insulation stress and extending service life in hot industrial environments. This design also simplifies inspection and maintenance, enabling quicker part access and easier future upgrades or repairs in OEM and retrofit projects.
The transformer carries Eaton’s standard warranty (one year from installation or 18 months from shipment, whichever occurs first). Regular maintenance should focus on cleaning ventilation paths, inspecting aluminum windings for signs of corrosion, and verifying tap connections to maintain voltage accuracy under load.