General Purpose Low Voltage Transformers
Reliable and Efficient Power
MGM Transformers’ Low Voltage (600V Class) Dry-Type General Purpose Transformers deliver dependable, efficient power for a wide range of commercial and industrial applications. Stocked in over 20 major cities across the continental U.S., these units are readily available to support fast-moving project timelines with proven reliability and performance.
In addition to our stocked offering, MGM specializes in custom-engineered solutions tailored to unique application requirements. Whether you need non-standard voltage combinations, specialized tap arrangements, unique winding configurations, or custom enclosures, our team of 50+ engineers can design and build transformers to align precisely with your operational needs.
All units are built with industry-leading features to ensure safety, durability, and efficiency, backed by our vertically integrated manufacturing process and stringent quality controls.
Looking for a medium voltage option? Click Here
KEY Features:
- DOE 2016 Efficiency Compliant: Designed to meet modern energy standards for lower operating costs.
- Certified for Safety and Durability: UL 506 and UL 1561 Listed, with seismic certification per ASCE/SEI 7-05 and OSHPD OSP Pre Approval.
- Voltage Configurations: Any voltage combination to suit your system requirements.
- Winding: Available with aluminum or copper windings to suit your needs.
- Frequency: Available with 50, 60 or 50/60 Hz
- Enclosure Types: Options include NEMA 1, 3R, 4, 4X, and more to match environmental conditions.
- Special Applications: Designs for low-noise environments, marine duty, solar duty, totally enclosed non-ventilated (TENV) settings, autotransformers, and OSHPD-certified enclosures.
Why Choose MGM Transformers?
- Nationwide Availability: Stocked in 20 major cities for fast delivery.
- Reliable Performance: Engineered to provide consistent power for critical loads.
- Durable and Certified: Built to meet seismic and safety standards.
- Energy Efficient: Designed to reduce energy losses and comply with DOE standards.
STANDARD FEATURES
- DOE 2016 Efficiency Compliant
- UL 506, UL 1561 Listed
- Aluminum or Copper Windings
- 60 Hz
- Electrostatic Shield
- 150°C Temperature Rise
- Seismically Certified per ASCE/SEI 7-05
- OSHPD OSP Pre Approval
SOUND LEVELS
600 Volt class general purpose dry type transformers designed to meet NEMA ST-20 sound levels.
ACCESSORIES
- Seismic Kits
- Wall Brackets
- Rodent Screens
- Weathershield Kits
TESTING AND QUALITY ASSURANCE
As part of MGM Transformers’ quality assurance process, all 600 Volt transformers go through a rigorous IEEE test plan to ensure optimum performance. These tests include:
- Winding resistance test
- Turns ratio test
- Polarity and phase relation test
- No load losses and exciting current test
- Impedance and load loss test
- Applied potential test
ENCLOSURES
Ventilated transformers utilize a NEMA 2 rated drip proof metal enclosure with natural draft ventilation. MGM Transformers’ dual rated enclosures are suitable for indoor or outdoor applications and are standard on all models except the 225, 300, and 500 kVA transformers (optional Weather-shield Kits are available for these units).
VOLTAGE TAPS
Taps will compensate for the high or low line voltages. MGM Transformers’ 600 Volt class transformers are provided with 6 primary taps:
- 2 taps @ 2-1/2% FCAN
- 4 taps @ 2-1/2% FCBN
|
CAT #
|
ALT #
|
RATING
|
H (in)
|
W (in)
|
D (in)
|
WEIGHT (lbs)
|
DIMS DWG
|
|---|---|---|---|---|---|---|---|
|
HT15A3B2-D16
|
15YS*D16
|
15 KVA
|
28
|
21
|
14
|
235
|
A
|
|
HT30A3B2-D16
|
30YS*D16
|
30 KVA
|
32
|
26.5
|
17
|
355
|
B
|
|
HT45A3B2-D16
|
45YS*D16
|
45 KVA
|
32
|
26.5
|
17
|
425
|
B
|
|
HT75A3B2-D16
|
75YS*D16
|
75 KVA
|
38.5
|
28.5
|
20
|
595
|
B+
|
|
HT112A3B2-D16
|
112YS*D16
|
112.5 KVA
|
40.5
|
31.5
|
21.75
|
795
|
C
|
|
HT150A3B2-D16
|
150YS*D16
|
150 KVA
|
40.5
|
36.5
|
21.75
|
1,020
|
C+
|
|
HT225A3B2-D16
|
225YS*D16
|
225 KVA
|
51.5
|
40.5
|
26.5
|
1,580
|
D
|
|
HT300A3B2-D16
|
300YS*D16
|
300 KVA
|
51.5
|
40.5
|
26.5
|
1,875
|
D
|
|
HT500A3B2-D16
|
500YS*D16
|
500 KVA
|
66
|
50.5
|
32
|
3,295
|
E
|
|
HT750A3B2-D16
|
750YS*D16
|
750 KVA
|
80.25
|
64
|
50
|
3,850
|
F
|
|
CAT #
|
ALT #
|
RATING
|
H (in)
|
W (in)
|
D (in)
|
WEIGHT (lbs)
|
DIMS DWG
|
|---|---|---|---|---|---|---|---|
|
HT15A3K2-D16
|
15DS*D16
|
15 KVA
|
28
|
21
|
14
|
240
|
A
|
|
HT30A3K2-D16
|
30DS*D16
|
30 KVA
|
32
|
26.5
|
17
|
355
|
B
|
|
HT45A3K2-D16
|
45DS*D16
|
45 KVA
|
32
|
26.5
|
17
|
425
|
B
|
|
HT75A3K2-D16
|
75DS*D16
|
75 KVA
|
38.5
|
28.5
|
20
|
590
|
B+
|
|
HT112A3K2-D16
|
112DS*D16
|
112.5 KVA
|
40.5
|
31.5
|
21.75
|
790
|
C
|
|
HT150A3K2-D16
|
150DS*D16
|
150 KVA
|
40.5
|
36.5
|
21.75
|
1,015
|
C+
|
|
HT225A3K2-D16
|
225DS*D16
|
225 KVA
|
51.5
|
40.5
|
26.5
|
1,570
|
D
|
|
HT300A3K2-D16
|
300DS*D16
|
300 KVA
|
51.5
|
40.5
|
26.5
|
1,865
|
D
|
|
HT500A3K2-D16
|
500DS*D16
|
500 KVA
|
66
|
50.5
|
32
|
3,215
|
E
|
|
CAT #
|
ALT #
|
RATING
|
H (in)
|
W (in)
|
D (in)
|
WEIGHT (lbs)
|
DIMS DWG
|
|---|---|---|---|---|---|---|---|
|
HT15C3B2-D16
|
15CS*D16
|
15 KVA
|
28
|
21
|
14
|
235
|
A
|
|
HT30C3B2-D16
|
30CS*D16
|
30 KVA
|
32
|
26.5
|
17
|
355
|
B
|
|
HT45C3B2-D16
|
45CS*D16
|
45 KVA
|
32
|
26.5
|
17
|
425
|
B
|
|
HT75C3B2-D16
|
75CS*D16
|
75 KVA
|
38.5
|
28.5
|
20
|
595
|
B+
|
|
HT112C3B2-D16
|
112CS*D16
|
112.5 KVA
|
40.5
|
31.5
|
21.75
|
795
|
C
|
|
HT150C3B2-D16
|
150CS*D16
|
150 KVA
|
40.5
|
36.5
|
21.75
|
1,010
|
C+
|
|
CAT #
|
ALT #
|
RATING
|
H (in)
|
W (in)
|
D (in)
|
WEIGHT (lbs)
|
DIMS DWG
|
|---|---|---|---|---|---|---|---|
|
HS10C3B2-D16
|
10SS*D16
|
10 KVA
|
28
|
21
|
14
|
175
|
A
|
|
HS15C3B2-D16
|
15SS*D16
|
15 KVA
|
28
|
21
|
14
|
205
|
A
|
|
HS25C3B2-D16
|
25SS*D16
|
25 KVA
|
32
|
26.5
|
17
|
270
|
B
|
|
HS37C3B2-D16
|
37SS*D16
|
37.5 KVA
|
32
|
26.5
|
17
|
345
|
B
|
|
HS50C3B2-D16
|
50SS*D16
|
50 KVA
|
32
|
26.5
|
17
|
385
|
B
|
|
HS75C3B2-D16
|
75SS*D16
|
75 KVA
|
38.5
|
28.5
|
20
|
530
|
B+
|
|
HS100C3B2-D16
|
100SS*D16
|
100KVA
|
40.5
|
31.5
|
21.75
|
620
|
C
|
|
CAT #
|
Alt #
|
Rating
|
H (in)
|
W (in)
|
D (in)
|
WEIGHT (lbs)
|
DIMS DWG
|
|---|---|---|---|---|---|---|---|
|
HT15A3D2-D16
|
15AD*D16
|
15 KVA
|
28
|
21
|
14
|
240
|
A
|
|
HT30A3D2-D16
|
30AD*D16
|
30 KVA
|
32
|
26.5
|
17
|
355
|
B
|
|
HT45A3D2-D16
|
45AD*D16
|
45 KVA
|
32
|
26.5
|
17
|
425
|
B
|
|
HT75A3D2-D16
|
75AD*D16
|
75 KVA
|
38.5
|
28.5
|
20
|
590
|
B+
|
|
HT112A3D2-D16
|
112AD*D16
|
112.5 KVA
|
40.5
|
31.5
|
21.75
|
790
|
C
|
|
HT150A3D2-D16
|
150AD*D16
|
150 KVA
|
40.5
|
36.5
|
21.75
|
1015
|
C+
|
|
HT225A3D2-D16
|
225AD*D16
|
225 KVA
|
51.5
|
40.5
|
26.5
|
1570
|
D
|
|
HT300A3D2-D16
|
300AD*D16
|
300 KVA
|
51.5
|
40.5
|
26.5
|
1865
|
D
|
|
HT500A3D2-D16
|
500AD*D16
|
500 KVA
|
66.0
|
50.5
|
32.0
|
3215
|
E
|
|
CAT #
|
Alt #
|
Rating
|
H (in)
|
W (in)
|
D (in)
|
Weight (lbs)
|
DIMS DWG
|
|---|---|---|---|---|---|---|---|
|
HT15G3D2-D16
|
15GD*D16
|
15 KVA
|
28
|
21
|
14
|
240
|
A
|
|
HT30G3D2-D16
|
30GD*D16
|
30 KVA
|
32
|
26.5
|
17
|
355
|
B
|
|
HT45G3D2-D16
|
45GD*D16
|
45 KVA
|
32
|
26.5
|
17
|
425
|
B
|
|
HT75G3D2-D16
|
75GD*D16
|
75 KVA
|
38.5
|
28.5
|
20
|
590
|
B+
|
|
HT112G3D2-D16
|
112GD*D16
|
112.5 KVA
|
40.5
|
31.5
|
21.75
|
790
|
C
|
|
HT150G3D2-D16
|
150GD*D16
|
150 KVA
|
40.5
|
36.5
|
21.75
|
1015
|
C+
|
|
HT225G3D2-D16
|
225GD*D16
|
225 KVA
|
51.5
|
40.5
|
26.5
|
1570
|
D
|
|
HT300G3D2-D16
|
300GD*D16
|
300 KVA
|
51.5
|
40.5
|
26.5
|
1865
|
D
|
|
HT500G3D2-D16
|
500GD*D16
|
500 KVA
|
66.0
|
50.5
|
32.0
|
3215
|
E
|
|
CAT #
|
Alt #
|
Rating
|
H (in)
|
W (in)
|
D (in)
|
Weight (lbs)
|
DIMS DWG
|
|---|---|---|---|---|---|---|---|
|
HT15C3D2-D16
|
15CD*D16
|
15 KVA
|
28
|
21
|
14
|
240
|
A
|
|
HT30C3D2-D16
|
30CD*D16
|
30 KVA
|
32
|
26.5
|
17
|
355
|
B
|
|
HT45C3D2-D16
|
45CD*D16
|
45 KVA
|
32
|
26.5
|
17
|
425
|
B
|
|
HT75C3D2-D16
|
75CD*D16
|
75 KVA
|
38.5
|
28.5
|
20
|
590
|
B+
|
|
HT112C3D2-D16
|
112CD*D16
|
112.5 KVA
|
40.5
|
31.5
|
21.75
|
790
|
C
|
|
HT150C3D2-D16
|
150CD*D16
|
150 KVA
|
40.5
|
36.5
|
21.75
|
1015
|
C+
|
|
HT225C3D2-D16
|
225CD*D16
|
225 KVA
|
51.5
|
40.5
|
26.5
|
1570
|
D
|
|
HT300C3D2-D16
|
300CD*D16
|
300 KVA
|
51.5
|
40.5
|
26.5
|
1865
|
D
|
|
HT500C3D2-D16
|
500CD*D16
|
500 KVA
|
66.0
|
50.5
|
32.0
|
3215
|
E
|
|
CAT #
|
Alt #
|
Rating
|
H (in)
|
W (in)
|
D (in)
|
Weight (lbs)
|
DIMS DWG
|
|---|---|---|---|---|---|---|---|
|
HT15G3B2-D16
|
15GB*D16
|
15 KVA
|
28
|
21
|
14
|
240
|
A
|
|
HT30G3B2-D16
|
30GB*D16
|
30 KVA
|
32
|
26.5
|
17
|
355
|
B
|
|
HT45G3B2-D16
|
45GB*D16
|
45 KVA
|
32
|
26.5
|
17
|
425
|
B
|
|
HT75G3B2-D16
|
75GB*D16
|
75 KVA
|
38.5
|
28.5
|
20
|
590
|
B+
|
|
HT112G3B2-D16
|
112GB*D16
|
112.5 KVA
|
40.5
|
31.5
|
21.75
|
790
|
C
|
|
HT150G3B2-D16
|
150GB*D16
|
150 KVA
|
40.5
|
36.5
|
21.75
|
1015
|
C+
|
|
HT225G3B2-D16
|
225GB*D16
|
225 KVA
|
51.5
|
40.5
|
26.5
|
1570
|
D
|
|
HT300G3B2-D16
|
300GB*D16
|
300 KVA
|
51.5
|
40.5
|
26.5
|
1865
|
D
|
|
HT500G3B2-D16
|
500GB*D16
|
500 KVA
|
66.0
|
50.5
|
32.0
|
3215
|
E
|
|
CAT #
|
ALT #
|
RATING
|
H (in)
|
W (in)
|
D (in)
|
WEIGHT (lbs)
|
DIMS DWG
|
|---|---|---|---|---|---|---|---|
|
HT15A3B1-D16
|
15YSC*D16
|
15 KVA
|
28
|
21
|
14
|
231
|
A
|
|
HT30A3B1-D16
|
30YSC*D16
|
30 KVA
|
32
|
26.5
|
17
|
340
|
B
|
|
HT45A3B1-D16
|
45YSC*D16
|
45 KVA
|
32
|
26.5
|
17
|
418
|
B
|
|
HT75A3B1-D16
|
75YSC*D16
|
75 KVA
|
38.5
|
28.5
|
20
|
599
|
B+
|
|
HT112A3B1-D16
|
112YSC*D16
|
112.5 KVA
|
40.5
|
31.5
|
21.75
|
806
|
C
|
|
HT150A3B1-D16
|
150YSC*D16
|
150 KVA
|
40.5
|
36.5
|
21.75
|
942
|
C+
|
|
HT225A3B1-D16
|
225YSC*D16
|
225 KVA
|
51.5
|
40.5
|
26.5
|
1,755
|
D
|
|
HT300A3B1-D16
|
300YSC*D16
|
300 KVA
|
51.5
|
40.5
|
26.5
|
2,068
|
D
|
|
HT500A3B1-D16
|
500YSC*D16
|
500 KVA
|
66
|
50.5
|
32
|
3,382
|
E
|
|
CAT #
|
Alt #
|
Rating
|
H (in)
|
W (in)
|
D (in)
|
Weight (lbs)
|
Case
|
|---|---|---|---|---|---|---|---|
|
HT15A3K1-D16
|
15DSC*D16
|
15 KVA
|
28
|
21
|
14
|
250
|
A
|
|
HT30A3K1-D16
|
30DSC*D16
|
30 KVA
|
32
|
26.5
|
17
|
370
|
B
|
|
HT45A3K1-D16
|
45DSC*D16
|
45 KVA
|
32
|
26.5
|
17
|
455
|
B
|
|
HT75A3K1-D16
|
75DSC*D16
|
75 KVA
|
38.5
|
28.5
|
20
|
645
|
B+
|
|
HT112A3K1-D16
|
112DSC*D16
|
112 KVA
|
40.5
|
31.5
|
22
|
840
|
C
|
|
HT150A3K1-D16
|
150DSC*D16
|
150 KVA
|
40.5
|
36.5
|
21.75
|
1045
|
C+
|
|
HT225A3K1-D16
|
225DSC*D16
|
225 KVA
|
51.5
|
40.5
|
26.5
|
1720
|
D
|
|
HT300A3K1-D16
|
300DSC*D16
|
300 KVA
|
51.5
|
40.5
|
26.5
|
1940
|
D
|
|
HT500A3K1-D16
|
500DSC*D16
|
500 KVA
|
66
|
50.5
|
32
|
3425
|
E
|
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