Sola/Hevi-Duty: General Purpose Transformers


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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.

High efficiency for low cost operation
Compliant to NEMA TP-1 Standards
Class 220°C insulation system
Single and three phase availability
Fast delivery
10 years + 2 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

Wall mounting brackets (500 lbs maximum)
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

Features

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
Electrostatically shielded for quality power
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 + 2 years warranty

Single Phase Selection Tables

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

UL File:

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	175	1	1	62.5/31.3	125/62.5
25	ES5H25S	WS-15	28	16	16	265	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	425	1	1	208/104	416/208
75	ES5H75S	WS-09	44	23	21	655	1	1	313/156	625/313
100	ES5H100S	WS-09	44	23	21	750	1	1	417/208	833/417
167	ES5H167S	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. *Design Style and Electrical Connections can be found by clicking the link or by selecting the pdf files to the left.

Group 2: 600 Volt Primary, 120/240 Secondary, 60 Hz

UL File:

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	23	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	425	1	4	83.3	416/208
75	ES510H75S	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	ES5H167S	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. *Design Style and Electrical Connections can be found by clicking the link or by selecting the pdf files to the left.

Three Phase Selection Tables

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

UL File:

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	ET2H15S	WS-02	23	18	14	187	1	2	18.1	41.7
30	ET2H30S	WS-14	28	23	16	292	1	2	36.1	83.4
45	ET2H45S	WS-14	28	23	16	376	1	2	54.2	125
75	ET2H75S	WS-30	34	28	22	569	1	2	90.3	208
112.5	ET2H112S	WS-30	34	28	22	768	1	2	135	313
150	ET2H150S	WS-10	44	33	21	933	1	2	181	417
225	ET2H225S	WS-11	46	36	24	1342	1	2	271	625
300	ET2H300S	WS-11	46	36	24	1525	1	2	361	834
500	ET2H500S	WS-12	65	45	35	2460	1	2	602	1390
Weather shields come in a set of two and need to be ordered separately. *Design Style and Electrical Connections can be found by clicking the link or by selecting the pdf files to the left.

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

UL File:

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	ET5H15S	WS-02	23	19	14	189	1	3	18.1	36.1
30	ET5H30S	WS-14	28	23	16	292	1	3	36.1	72.3
45	ET5H45S	WS-14	28	23	16	381	1	3	54.2	108
75	ET5H75S	WS-30	34	28	22	560	1	3	90.3	181
112.5	ET5H112S	WS-30	34	28	22	760	1	3	135	271
150	ET5H150S	WS-10	44	33	21	940	1	3	181	361
225	ET5H225S	WS-11	46	36	24	1342	1	3	271	542
300	ET5H300S	WS-11	46	36	24	1525	1	3	361	723
500	ET5H500S	WS-12	65	45	35	2460	1	3	602	1204
Weather shields come in a set of two and need to be ordered separately. *Design Style and Electrical Connections can be found by clicking the link or by selecting the pdf files to the left.

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

UL File:

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	5	18.1	18.1
30	ET81H30S	WS-14	28	23	16	295	1	5	36.1	36.1
45	ET81H45S	WS-14	28	23	16	380	1	5	54.2	54.2
75	ET81H75S	WS-30	34	28	22	560	1	5	90.3	90.3
112.5	ET81H112S	WS-30	34	28	22	780	1	5	135	135
150	ET81H150S	WS-10	44	33	21	933	1	5	181	181
225	ET81H225S	WS-11	46	36	24	1342	1	5	271	271
300	ET81H300S	WS-11	46	36	24	1525	1	5	361	361
500	ET81H500S	WS-12	65	45	35	2460	1	5	602	602
Weather shields come in a set of two and need to be ordered separately. *Design Style and Electrical Connections can be found by clicking the link or by selecting the pdf files to the left.

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

UL File:

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	7	41.7	18.1
30	ET84H30S	WS-14	28	23	16	295	1	7	83.4	36.1
45	ET84H45S	WS-14	28	23	16	375	1	7	125	54.2
75	ET84H75S	WS-30	34	28	22	570	1	7	208	90.3
112.5	ET84H112S	WS-30	34	28	22	780	1	7	313	135
150	ET84H150S	WS-10	44	33	21	972	1	7	417	181
Weather shields come in a set of two and need to be ordered separately. *Design Style and Electrical Connections can be found by clicking the link or by selecting the pdf files to the left.

Group E: 208 Volt ∆ Primary, 208Y/120 Secondary, 60 Hz

UL File:

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	ET3H15S	WS-02	23	18	14	205	1	6	41.7	41.7
30	ET3H30S	WS-14	28	23	16	385	1	6	83.4	83.4
45	ET3H45S	WS-14	28	23	16	405	1	6	125	125
75	ET3H75S	WS-30	34