Cutler Hammer, Div of Eaton Corp General-Purpose Encapsulated Transformers Features and Benefits
Transformers
General-Purpose Encapsulated Transformers
9.4
Type EP 3–25 kVA
Product Description
Note: The following pages
provide listings for most standard
transformer ratings and styles.
For other ratings or styles not
shown, or for special enclosure
types (including stainless steel),
refer to Eaton.
Type EP and EPT
●
Encapsulated design
●
Suitable for indoor or
outdoor applications
●
Totally enclosed, nonventilated enclosures
●
Enclosures are
NEMA 3R rated
●
Mountable in any position
indoors and upright-only
outdoors
●
180ºC insulation system
●
115ºC rise standard;
80°C optional
●
Available in ratings through
37.5 kVA single-phase;
75 kVA three-phase
Application Description
The basic purpose of a
transformer is voltage
transformation as near as
practically possible to the
load for economy and
distribution of power. Typical
loads for dry-type distribution
transformers include lighting,
heating, air conditioners,
fans and machine tools.
Such loads are found in
commercial, institutional,
industrial and residential
structures.
Contents
Description Page
General-Purpose Encapsulated Transformers
Catalog Number Selection. . . . . . . . . . . . . . . . . . . . . . . . 224
Product Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Single-Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Three-Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Technical Data and Specifications . . . . . . . . . . . . . . . . . . 237
Features, Benefits
and Functions
●
60 Hz operation
(50/60 Hz optional)
●
Short-term overload
capability as required
by ANSI
●
Meet NEMA ST-20
sound levels
Standards and
Certifications
●
UL listed
●
CSA certified
Industry Standards
All Eaton dry-type distribution
and control transformers are
built and tested in accordance
with applicable NEMA,
ANSI and IEEE Standards.
All 600 volt class transformers
are UL listed unless otherwise
noted.
Seismically Qualified
Eaton manufactured dry-type
distribution transformers are
seismically qualified and
exceed requirements of
the Uniform Building Code
(UBC), International Building
Code (IBC), and California
Code Title 24.
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Volume 2—Commercial Distribution CA08100003E—December 2010 www.eaton.com 223
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