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Home > Products > Transformers > General Purpose

General Purpose Transformers

Energy efficient dry-type transformers 600 Volt Class, isolation type, single and three phase, 15 kVA through 500 kVA. Indoor and outdoor models available.

  • UL-3R ventilated outdoor enclosures when used with optional weather shields (order separately)
  • UL Class 220°C insulation system, 150°C temperature rise under full load
  • Terminal board connections and spacious wiring compartment
  • Panel enclosure design reduces labor time. Wiring diagram on inside front cover
  • High efficiency for low cost operation
  • Compliant to NEMA TP-1 Standards
  • Single and three phase availability
  • Fast delivery
  • 10 year warranty

On this page: Accessories and Optional Design Styles, Features, Single Phase Selection Tables, Three Phase Selection Tables

Printable versions of the following sections are available by selecting one of the pdf files to the left.


Accessories and Optional Design Styles Top
  • Electrostatic shield for quality power
  • Wall mounting brackets (500 lbs maximum) (Item WB1C)
  • Weather Shields (UL-3R)*
  • Stainless Steel Enclosures
  • Totally enclosed non-ventilated designs (TENV) (Non UL)
  • Open core and coil designs
  • Copper Wound designs
  • Low temperature designs

*Weather shields (set of two) must be ordered separately

 Single Phase Selection Tables Top

Group 1: 240 x 480 Volt Primary, 120/240 Secondary, 60 Hz

UL File:

Top

kVA

Catalog
Number
NEMA 3R Weather Shield* Height
(inch)
Width
(inch)
Depth
(inch)
Ship Weight
Approx.
(lbs)
Design
Style
Elec
Conn
Prim.
Amps
Sec.
Amps
15
 ES5H15S
WS-15 23 16 16 210 1 1 62.5/31.3 125/62.5
25
 ES5H25S
WS-15 28 16 16 245 1 1 104/52.1 208/104
37.5
 ES5H37S
WS-17 31 18 18 340 1 1 156/78 313/156
50
 ES5H50S
WS-17 31 18 18 415 1 1 208/104 416/208
75
 ES5H75S
WS-09 44 23 21 610 1 1 313/156 625/313
100
 ES5H100S
WS-09 44 23 21 705 1 1 417/208 833/417
167
 ES50H167S
WS-16 46 26 24 980 1 1 695/348 1392/695

*Weather shields come in a set of two and need to be ordered separately.


Group 2: 120/208/240/277 Volt Primary, 120/240 Secondary, 60 Hz

UL File:

Top

kVA

Catalog
Number
NEMA 3R Weather Shield* Height
(inch)
Width
(inch)
Depth
(inch)
Ship Weight
Approx.
(lbs)
Design
Style
Elec
Conn
Prim.
Amps
Sec.
Amps
15
 ES12H15S
WS-15 28 16 16 215 1 2 54.2 125/62.5
25
 ES12H25S
WS-15 28 16 16 250 1 2 90.3 208/104

*Weather shields come in a set of two and need to be ordered separately.


Group 3: 600 Volt Primary, 120/240 Secondary, 60 Hz

UL File:

Top

kVA

Catalog
Number

NEMA 3R
Weather Shield*

Height
(inch)
Width
(inch)
Depth
(inch)
Ship Weight
Approx.
(lbs)
Design
Style
Elec
Conn
Prim.
Amps
Sec.
Amps
15
 ES10H15S
WS-15 28 16 16 175 1 4 25 125/62.5
25
 ES10H25S
WS-15 28 16 16 265 1 4 41.7 208/104
37.5
 ES10H37S
WS-17 31 18 18 340 1 4 62.5 313/156
50
 ES10H50S
WS-17 31 18 18 410 1 4 83.3 416/208
75
 ES10H75S
WS-09 44 23 21 655 1 4 125 625/313
100
 ES10H100S
WS-09 44 23 21 750 1 4 167 833/417
167
 ES10H167S
WS-16 46 26 24 980 1 4 278 1392/695

*Weather shields come in a set of two and need to be ordered separately.


Group 4:
  Export 190/200/208/220/380/400/415/440 Volt Primary, 110/220 Secondary, 50/60 Hz
  Export 200/208/-/230/400/415/-/460 Volt Primary, 115/230 Secondary, 50/60 Hz
  Export 208/-/-/240/415/-/-/480 Volt Primary, 120/240 Secondary, 60 Hz only

UL File:

Top

kVA

Catalog
Number
NEMA 3R
Weather Shield*
Height
inches (mm)
Width
inches (mm)
Depth
inches (mm)
Ship Weight
Approx.
lbs (kg)
Design
Style
Elec
Conn
Prim. Amps
(@ 220/440 V)
Sec.
Amps
15
 ES14H15S
WS-15 28 (711.2) 16 (406.4) 16 (406.4) 210 (95.25) 1 3 68.2/34.1 136/68.2
25
 ES14H25S
WS-15 28 (711.2) 16 (406.4) 16 (406.4) 265 (120.2) 1 3 113.6/56.8 227.3/113.6

*Weather shields come in a set of two and need to be ordered separately.


 Three Phase Selection Tables

Top


Group A: 480 Volt Primary, 208/120 Secondary, 60 Hz

UL File:

Top

kVA

Catalog
Number
NEMA 3R
Weather Shield*
Height
(inch)
Width
(inch)
Depth
(inch)
Ship Weight
Approx.
(lbs)
Design
Style
Elec
Conn
Prim.
Amps
Sec.
Amps
15  ET2H15** WS-02 23 18 14 187 1 5 18.1 41.7
 ET2H15S
30  ET2H30** WS-14 28 23 16 292 1 5 36.1 83.4
 ET2H30S
45  ET2H45** WS-14 28 23 16 376 1 5 54.2 125.0
 ET2H45S
75  ET2H75** WS-30 34 28 22 569 1 5 90.3 208.0
 ET2H75S
112.5
 ET2H112S
WS-30 34 28 22 768 1 5 135 313.0
150
 ET2H150S
WS-10 44 33 21 933 1 5 181 417.0
225
 ET2H225S
WS-11 46 36 24 1342 1 5 271 625.0
300
 ET2H300S
WS-11 46 36 24 1525 1 5 361 834.0

*Weather shields come in a set of two and need to be ordered separately.
**Unshielded model.


Group B: 480 Volt Primary, 240 Volt , Secondary with reduced capacity center tap, 60 Hz

UL File:

Top

kVA

Catalog
Number
NEMA 3R
Weather Shield*
Height
(inch)
Width
(inch)
Depth
(inch)
Ship
Weight
Approx.
(lbs)
Design
Style
Elec
Conn
Prim.
Amps
Sec.
Amps
15  ET5H15** WS-02 23 19 14 189 1 6 18.1 36.1
 ET5H15S
30  ET5H30** WS-14 28 23 16 292 1 6 36.1 72.3
 ET5H30S
45  ET5H45** WS-14 28 23 16 381 1 6 54.2 108.0
 ET5H45S
75  ET5H75** WS-30 34 28 22 560 1 6 90.3 181.0
 ET5H75S
112.5
 ET5H112S
WS-30 34 28 22 760 1 6 135 271.0
150
 ET5H150S
WS-10 44 33 21 940 1 6 181 361.0
225
 ET5H225S
WS-11 46 36 24 1342 1 6 271 542.0
300
 ET5H300S
WS-11 46 36 24 1525 1 6 361 723.0
500
 ET5H500S
WS-12 65 45 35 2460 1 6 602 1204.0

*Weather shields come in a set of two and need to be ordered separately.
**Unshielded model.


Group C: 480 Volt Primary, 480Y/277 Secondary, 60 Hz

UL File:

Top

kVA

Catalog
Number

NEMA 3R
Weather Shield*

Height
(inch)
Width
(inch)
Depth
(inch)
Ship Weight
Approx.
(lbs)
Design
Style
Elec
Conn
Prim.
Amps
Sec.
Amps
15
 ET81H15S
WS-02 23 18 14 189 1 8 18.1 18.1
30
 ET81H30S
WS-14 28 23 16 295 1 8 36.1 36.1
45
 ET81H45S
WS-14 28 23 16 380 1 8 54.2 54.2
75
 ET81H75S
WS-30 34 28 22 560 1 8 90.3 90.3
112.5
 ET81H112S
WS-30 34 28 22 780 1 8 135 135
150
 ET81H150S
WS-10 44 33 21 933 1 8 181 181
225
 ET81H225S
WS-11 46 36 24 1342 1 8 271 271
300
 ET81H300S
WS-11 46 36 24 1525 1 8 361 361
500
 ET81H500S
WS-12 65 45 35 2460 1 8 602 602

*Weather shields come in a set of two and need to be ordered separately.


Group D: 208 Volt Primary, 480Y/277 Secondary, 60 Hz

UL File:

Top

kVA

Catalog
Number
NEMA 3R
Weather Shield*
Height
(inch)
Width
(inch)
Depth
(inch)
Ship Weight
Approx.
(lbs)
Design
Style
Elec
Conn
Prim.
Amps
Sec.
Amps
15
 ET84H15S
WS-02 23 18 14 195 1 10 41.7 18.1
30
 ET84H30S
WS-14 28 23 16 295 1 10 83.4 36.1
45
 ET84H45S
WS-14 28 23 16 375 1 10 125 54.2
75
 ET84H75S
WS-30 34 28 22 570 1 10 208 90.3
112.5
 ET84H112S
WS-30 34 28 22 780