General Purpose Dry Type (Stocked)
Reliable and Efficient Power
MGM Transformers’ General Purpose Dry-Type Low Voltage transformers deliver dependable power solutions for a variety of commercial and industrial applications. Stocked in 20 major cities across the continental United States, these transformers are readily available to meet your project timelines with efficient and reliable performance.
Designed to supply power loads from electrical distribution systems, MGM Transformers’ are rated for 600V and equipped with industry-leading features to ensure safety, efficiency, and durability.
Looking for a custom option? Click Here
Looking for a medium voltage option? Click Here
Standard Features of Stocked Units:
- 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.
- Temperature Rise: 150°C for reliable operation in demanding conditions.
- Flexible Materials: Available with aluminum or copper windings to suit your needs.
- 60 Hz Frequency: Standard for U.S. applications.
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
480 – 208/120 | 60 HZ, 150ºC, 3 PHASE, ALUMINUM
|
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
|
480 – 240/120ct | 60 HZ, 150ºC, 3 PHASE, ALUMINUM
|
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
|
240 – 208/120 | 60 Hz, 150ºC, 3 PHASE, ALUMINUM
|
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+
|
240X480 – 120/240 | 60 Hz, 150ºC, 1 PHASE, ALUMINUM
|
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
|
480V DELTA PRIMARY-480y/277, 60 Hz, 150°C, 3 PHASE, ALUMINUM
|
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
|
208V DELTA PRIMARY-480y/277, 60 Hz, 150°C, 3 PHASE, ALUMINUM
|
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
|
240V DELTA PRIMARY-480y/277, 60 Hz, 150°C, 3 PHASE, ALUMINUM
|
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
|
208V DELTA PRIMARY – 120/208, 60 Hz, 150°C, 3 PHASE, ALUMINUM
|
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
|
480 – 208/120 | 60 HZ, 150ºC, 3 PHASE, COPPER
|
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
|
480 – 240/120 | 60 HZ, 150ºC, 3 PHASE, COPPER
|
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
|
PRODUCT LITERATURE
INSTRUCTION SHEETS & MANUALS
TECHNICAL SPECIFICATIONS
- MGM gp-dry guide spec
-
Stock Unit Nameplates
- Three Phase 240 – 208Y/120
- Three Phase 480 – 240/120 CT
- Three Phase 480 – 208Y/120
- Single Phase 240×480 – 120/240
-
Case Diagrams
- Case A
- Case B
- Case B plus
- Case C
- Case C plus
- Case D
- Case E
- Case F
Contact Us
Bull Rush
Emergencies happen and we’re here to respond. We will work 24/7 till the emergency transformer is done or your money back!