Courtesy of Steven Engineering, Inc. Ÿ 230 Ryan Way, South San Francisco, CA, 94080-6370 Ÿ Main Office: (650) 588-9200 Ÿ Outside Local Area: (800) 258-9200 Ÿ www.stevenengineering.com
®
JEFFERSON
Cabinet Style Transformers
Single-Phase
25 to 500 KVA
TYPICAL APPLICATIONS
■ All general loads,
indoors or outdoors,
including lighting,
industrial & commercial
•
•
•
•
•
•
Schools
Hospitals
Factories
Office buildings
Housing complexes
Amusement parks
For the name of your local
representative, or for technical
assistance, call
1-800-892-3755
®
Jefferson
Electric
Courtesy of Steven Engineering, Inc. Ÿ 230 Ryan Way, South San Francisco, CA, 94080-6370 Ÿ Main Office: (650) 588-9200 Ÿ Outside Local Area: (800) 258-9200 Ÿ www.stevenengineering.com
Single-Phase Cabinet Style
features & benefits
■ Type NEMA 3R enclosures for indoor/outdoor applications to protect against
rain, sleet or ice.
■ Taps provided on primary to compensate for voltage variations.
■ Heavy sheet metal enclosures for better durability in severe
industrial applications.
■ Large connection compartment for ease of wiring and installation.
■ Electrostatic-shield to reduce electrical noise.
■ Heat applied ASA-61 Gray Powder Coat Finish to resist corrosion in
industrial environments.
■ Quiet operation for more flexibility in choice of mounting locations.
■ Cores made from high quality electrical steel for increased efficiency
and lower operating costs.
■ Built in accordance with ANSI C57.12.
■ Wall mount brackets are available for 100 KVA and smaller.
■ 220°C insulation system standard with 150°C temperature rise for longer,
more reliable life. Low temperature 115°C and 80°C rise units also available.
■ Meets or exceeds all applicable NEMA, ANSI, OSHA,
UL and CSA requirements.
■ Made in U.S.A.
18
®
Jefferson
Electric
1-800-892-3755
Courtesy of Steven Engineering, Inc. Ÿ 230 Ryan Way, South San Francisco, CA, 94080-6370 Ÿ Main Office: (650) 588-9200 Ÿ Outside Local Area: (800) 258-9200 Ÿ www.stevenengineering.com
SINGLE-PHASE CABINET STYLE
General Purpose
Single-Phase • 600 V Class • Standard Application Voltages • Cabinet Style • Electrostatic Shielded
Catalog
Number
KVA
Shielded
Taps
Temp.
Rise
°C
Dimensions (Inches)
Figure
Height
A
Width
B
Wiring
Diagram
Depth
C
Approx.
Ship Wt.
(lbs)
240x480 Volts – 120/240 Volts – Electrostatic Shielded
25*
221-3185-055
3
30.56
15.69
16.81
37.5*
221-3205-055
3
33.69
15.69
18 .38
280
50*
221-3225-055
3
33.69
15.69
18 .38
320
75*
221-3235-055
3
40.5
17 .19
19.81
100*
221-3245-055
167
221-3275-055
Yes
2 - 2.5%
FCAN
4 - 2.5%
FCBN
150
240
15A
500
3
40.5
17 .19
19.81
640
4
51.88
23.75
30.88
865
* Wall brackets available for units 25 KVA through 100 KVA – Cat. No. 223-0008-075.
NOTE: Housing dimensions subject to
change without notice.
Contact factory where dimensions are critical.
Wiring Diagram 15A
PRIMARY: 240 X 480
SECONDARY: 120/240
TAPS: 2, 2.5% FCAN; 4, 2.5% FCBN
Primary
Volts
InterConnect
Jumpers Between Taps
Left Coil
Right Coil
Connect
Primary
Lines To
216
H1 to H3
H2 to H4
2 and 4
2 and 4
H1- H4
228
H1 to H3
H2 to H4
1 and 4
1 and 4
H1- H4
240
H1 to H3
H2 to H4
2 and 3
2 and 3
H1- H4
252
H1 to H3
H2 to H4
1 and 3
1 and 3
H1- H4
432
H2 to H3
2 and 4
2 and 4
H1- H4
444
H2 to H3
1 and 4
2 and 4
H1- H4
456
H2 to H3
1 and 4
1 and 4
H1- H4
468
H2 to H3
2 and 3
1 and 4
H1- H4
480
H2 to H3
2 and 3
2 and 3
H1- H4
492
H2 to H3
1 and 3
2 and 3
H1- H4
504
H2 to H3
1 and 3
1 and 3
H1- H4
Secondary
Volts
InterConnect
Connect
Secondary
Lines To
240
X2 to X3
X1-X4
120/240
X2 to X3
X1-X2-X4
120
X1 to X3
X2 to X4
X1-X4
1-800-892-3755
®
Jefferson
Electric
19
Courtesy of Steven Engineering, Inc. Ÿ 230 Ryan Way, South San Francisco, CA, 94080-6370 Ÿ Main Office: (650) 588-9200 Ÿ Outside Local Area: (800) 258-9200 Ÿ www.stevenengineering.com
SINGLE-PHASE CABINET STYLE
General Purpose
Single-Phase • 600 V Class • Standard Application Voltages • Cabinet Style • Electrostatic Shielded
Catalog
Number
KVA
Shielded
Taps
Temp.
Rise
°C
Dimensions (Inches)
Wiring
Diagram
Approx.
Ship Wt.
(lbs)
Figure
Height
A
Width
B
Depth
C
3
30.56
15.69
16.81
240
3
33.69
15.69
18 .38
280
3
33.69
15.69
18 .38
3
40.50
17 .19
19.81
600 Volts – 120/240 Volts – Electrostatic Shielded
25*
221-3188-055
37.5*
221-3208-055
50*
221-3228-055
75*
221-3238-055
100*
221-3248-055
3
40.50
17 .19
19.81
640
167
221-3278-055
4
51.88
23.75
30.88
865
Yes
4 - 2.5%
FCBN
150
* Wall brackets available for units 25 KVA through 100 KVA – Cat. No. 223-0008-075.
320
500
NOTE: Housing dimensions subject to
change without notice.
Contact factory where dimensions are critical.
Figure 3
Wiring Diagram 16A
PRIMARY: 600
SECONDARY: 120/240
16A
TAPS: 4, 2.5% FCBN
Primary
Volts
Jumper Between
Taps
Connect Primary
Lines To
600
2 and 3
H1- H2
585
3 and 4
H1- H2
570
4 and 5
H1- H2
555
3 and 6
H1- H2
540
5 and 6
H1- H2
Volts
InterConnect
Connect Secondary
Lines To
240
X2 to X3
X1-X4
120/240
X2 to X3
X1-X2-X4
120
X1 to X3
X2 to X4
X1-X4
Figure 4
Secondary
See additional wiring diagrams in the “Three-Phase
Encapsulated Transformer” section, pages 00 – 00.
20
®
Jefferson
Electric
1-800-892-3755
®