Cut Sheet

V7-T7-26 Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—July 2015 www.eaton.com
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7.1
Industrial Control Transformers
Trans for mers
Catalog Number Selection
Please refer to Page V7-T7-3.
Product Selection
Additional Product Selection information is available in Volume 2, CA08100003E.
240/480 Volts to 120/240 Volts, 60 Hz
Technical Data and Specifications
Overload Capability
Short-term overload is
designed into transformers
as required by ANSI. Dry-type
distribution transformers will
deliver 200% nameplate load
for one-half hour, 150% load
for one hour and 125% load
for four hours without being
damaged, provided that a
constant 50% load precedes
and follows the overload.
See ANSI C57.96-01.250
for additional limitations.
Continuous overload capacity
is not deliberately designed
into a transformer because
the design objective is to be
within the allowed winding
temperature rise with
nameplate loading.
Insulation System and
Temperature Rise
Industry standards classify
insulation systems and rise as
shown below:
Insulation System
Classification
The design life of transformers
having different insulation
systems is the same—the
lower-temperature systems
are designed for the same life
as the higher-temperature
systems.
Sound Levels
All Eaton 600 volt class
general-purpose dry-type
distribution transformers are
designed to meet NEMA
ST-20 levels.
Winding Terminations
Eaton recommends external
cables be rated 90ºC
(sized at 75°C ampacity) for
encapsulated designs.
Series-Multiple Windings
Series-multiple windings
consist of two similar coils in
each winding that can be
connected in series or parallel
(multiple). Transformers with
series-multiple windings are
designated with an “x” or
“/” between the voltage
ratings, such as voltages of
“120/240” or “240 x 480.”
If the series-multiple winding
is designated by an “x,” the
winding can be connected
only for a series or parallel.
With the “/” designation,
a mid-point also becomes
available in addition to the
series or parallel connection.
As an example, a 120 x 240
winding can be connected
for either 120 (parallel) or
240 (series), but a 120/240
winding can be connected for
120 (parallel), 240 (series) or
240 with a 120 mid-point.
For additional information,
please refer to Volume 2,
CA08100003E.
Note: For additional information,
refer to Eaton’s Industrial Control
Transformer Binder B1228A.
For other ratings or styles not
shown, or for special enclosure
types (including stainless steel),
refer to Eaton.
Note
1
See Page V7-T7-22 for wiring diagrams.
kVA Mounting Frame
Wiring
Diagram
1
Weight
Lbs (kg)
Style
Number
3 Bottom FR133 5 65 (29.5) C0003P7GB
5 Bottom FR99 5 104 (47.2) C0005P7GB
7.5 Bottom FR100 5 129 (58.6) C0007P7GB
10 Bottom FR101 5 148 (67.2) C0010P7GB
15 Bottom FR134 5 197 (89.4) C0015P7GB
3 Side/Wall FR292 5 65 (29.5) C0003P7GS
5 Side/Wall FR256 5 104 (47.2) C0005P7GS
7.5 Side/Wall FR257 5 129 (58.6) C0007P7GS
10 Side/Wall FR258 5 148 (67.2) C0010P7GS
15 Side/Wall FR259 5 197 (89.4) C0015P7GS
Ambient
+
Winding
Rise
+
Hot
Spot
=
Temp.
Class
40°C 55°C 10°C 105°C
40°C 80°C 30°C 150°C
25°C 135°C 20°C 180°C
40°C 115°C 30°C 185°C
40°C 150°C 30°C 220°C