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AC Line Reactors
 Acme Line Reactors prevent equipment failure and costly downtime. They protect your sensitive equipment from harmful line disturbances and adds years to your equipment.

AC Refrigeration & Appliance Transformers
 The transformers in this section are autotransformers
designed to change a wide range of voltages to the standard motor voltages for domestic appliances, air conditioners and related equipment.

Transformer Accessories
 Acme offers a wide array of accessories for your transformers such as lug kits, space parts, standard taps, thermal switch kits, wall mounting brackets and weather shields.

Buck-Boost Transformers
 These transformers provide tremendous capabilities and flexibility in KVA sizes and input/output voltage combinations. Basically, you get 75 different transformers... all in one convenient package.

DC Power Supplies
 Acme, with its new line of DR series, offers you an innovative solution for many of your control applications.  Acme DC power supplies provide you with optimal performance with the least impact on installation time and space.
 

Drive Isolation Transformers
 The Acme Drive Isolation Transformers are specifically designed to accommodate the
special voltages and KVA sizes unique to AC
and DC motor drive applications.

Custom Transformers
When you need a custom transformer, Acme is a clear choice. Our reputation in high-quality, specialized transformers offers the finest product and the  best service in the industry.  

Acme Transformers

 

 

 

 

 

 

We at Acme Transformers are dedicated to providing you with the highest quality products and service. With our experienced staff and engineers, we are committed to providing you with the best.

Buck-Boost Transformers are small single-phase isolation transformers that will reduce (Buck) or raise (Boost) line voltage when connected as an autotransformer. The most common application is boosting 208 to 230v. Additionally, Buck-Boost Transformers are very well suited to motor loads, boosting 240 to 277 for lighter loads and many applications where nominal voltage is above or below 120 volts. Their use should be considered where supply line voltage is found to be consistently above or below desired nominal values of load voltage. Two or three may be banked for three-phase application where the neutral is available from the input.  Buck-Boost Transformers offer an economical solution to the adjustment of line voltages that are slightly above or below normal. 

When a Buck-Boost Transformer is connected as an autotransformer, only a portion of the load KVA is actually transformed. The majority of the load KVA is passed directly through to the source. For this reason, a Buck-Boost Transformer may be used to supply a much larger load KVA than is indicated on the nameplate.

With two-thirds of all electrical loads being A.C. motor loads, maintaining the proper voltage to that motor is very important. When the voltage is not maintained, motor winding current is increased causing reduced motor torque and escalating motor temperature.  This results in the rapid loss of insulation life expectancy. Buck-Boost Transformers are an economical way to correct this potentially very serious problem. Whenever a line voltage change in the 4-20% range is required, a Buck-Boost Transformer should be considered.


To select the proper transformer for Buck-Boost applications, determine:

  • Input Line Voltage - The voltage that you want to buck (decrease) or boost (increase). This can be found by measuring the supply line voltage with a voltmeter.

 

  • Load Voltage - The voltage at which your equipment is designed to operate. This is listed on the nameplate of the load equipment.

 

  • Load KVA or Load Amps - You do not need to know both. One or the other is sufficient for selection purposes. This information usually can be found on the nameplate of the equipment you want to operate.

 

  • Number of Phases - Single or three-phase line and load should match because a transformer is not capable of converting single-phase to three-phase. It is, however, a common application to make a single-phase transformer connection from a three-phase supply by use of one leg of the three-phase supply. This is particularly true in a Buck-Boost application because the supply must provide the load KVA, not just the nameplate rating of the Buck-Boost Transformer.

 

  • Frequency - The supply line frequency must be the same as the frequency of the equipment to be operated, either 50 or 60 cycles.
Buck-Boost Transformer Selection Chart
120 x 240 Volts Primary–12/24 Volts Secondary
 Single Phase BOOSTING BUCKING
Line Voltage (Available)  96 100 105 109 189 208 218 220 125 132 229 245 250 252
Load Voltage (Output)  115 120 116 120 208 229 240 242 114 120 208 223 227 240
Click part # for info Connection
Diagram		 B B A A D D D D A A D D D C
T-1-81047 KVA
Amps		 0.24
2.08		 0.25
2.08		 0.48
4.17		 0.50
4.17		 0.43
2.08		 0.48
2.08		 0.50
2.08		 0.50
2.08		 0.52
4.58		 0.55
4.58		 0.48
2.29		 0.51
2.29		 0.52
2.29		 1.05
4.38
T-1-81048 KVA
Amps		 0.48
4.17		 0.50
4.17		 0.96
8.33		 1.00
8.33		 0.87
4.17		 0.95
4.17		 1.00
4.17		 1.01
4.17		 1.04
9.17		 1.10
9.17		 0.95
4.58		 1.02
4.58		 1.04
4.58		 2.10
8.75
T-1-81049 KVA
Amps		 0.72
6.25		 0.75
6.25		 1.44
12.50		 1.50
12.50		 1.30
6.25		 1.43
6.25		 1.50
6.25		 1.51
6.25		 1.56
13.75		 1.65
13.75		 1.43
6.87		 1.53
6.87		 1.56
6.87		 3.15
13.13
T-1-81050 KVA
Amps		 1.20
10.42		 1.25
10.42		 2.41
20.83		 2.50
20.83		 2.17
10.42		 2.38
10.42		 2.50
10.42		 2.52
10.42		 2.60
22.92		 2.75
22.92		 2.39
11.46		 2.55
11.46		 2.60
11.46		 5.25
21.88
T-1-81051 KVA
Amps		 2.40
20.83		 2.50
20.83		 4.81
41.67		 5.00
41.67		 4.33
20.83		 4.77
20.83		 5.00
20.83		 5.04
20.83		 5.21
45.83		 5.50
45.83		 4.77
22.92		 5.10
22.92		 5.21
22.92		 10.50
43.75
T-1-81052 KVA
Amps		 3.60
31.25		 3.75
31.25		 7.22
62.50		 7.38
62.50		 6.50
31.25		 7.15
31.25		 7.49
31.25		 7.56
31.25		 7.81
68.75		 8.25
68.75		 7.16
34.37		 7.66
34.37		 7.81
34.37		 15.75
65.63
T-1-11683 KVA
Amps		 4.80
41.67		 5.00
41.67		 9.63
83.33		 9.99
83.33		 8.66
41.67		 9.53
41.67		 9.99
41.67		 10.08
41.67		 10.42
91.67		 11.00
91.67		 9.54
45.83		 10.21
45.83		 10.42
45.83		 21.00
87.50
T-1-11684 KVA
Amps		 7.20
62.50		 7.50
62.50		 14.44
125.00		 14.99
125.00		 12.99
62.50		 14.30
62.50		 14.99
62.50		 15.13
62.50		 15.62
137.50		 16.50
137.50		 14.31
68.75		 15.31
68.75		 15.62
68.75		 31.50
131.25
T-1-11685 KVA
Amps		 9.60
83.33		 10.00
83.33		 19.25
166.67		 19.98
166.67		 17.32
83.33		 19.07
83.33		 19.98
83.33		 20.17
83.33		 20.83
183.33		 22.00
183.33		 19.08
91.67		 20.42
91.67		 20.83
91.67		 42.00
175.00
T-1-11686 KVA
Amps		 14.40
125.00		 15.00
125.00		 28.88
250.00		 29.98
250.00		 25.99
125.00		 28.60
125.00		 29.98
125.00		 30.25
125.00		 31.25
275.00		 33.00
275.00		 28.62
137.50		 30.62
137.50		 31.25
137.50		 63.00
262.50
T-1-11687 KVA
Amps		 24.00
208.33		 25.00
208.33		 48.13
416.67		 49.96
416.67		 43.31
208.33		 47.67
208.33		 49.96
208.33		 50.42
208.33		 52.08
458.33		 55.00
458.33		 47.71
229.17		 51.04
229.17		 52.08
229.17		 105.00
437.50
Click part # for info Connection
Diagram		 B B A A D D D D A A D D D C
  Output for lower voltage can be found by:  Rated Output Voltage
Rated Input Voltage		 x  Input Actual Voltage = Output New Voltage.
 
Output KVA available at reduced voltage can be found by:  Actual Input Voltage
Rated Input Voltage		 x  Output KVA = New KVA Rating.
 
Buck-Boost Transformer Selection Chart
120 x 240 Volts Primary–12/24 Volts Secondary
 Three Phase BOOSTING BUCKING
Line Voltage (Available)  189Y
109		 195Y
113		 200Y
115		 208Y
120		 416Y
240		 416Y
240		 189 208 220 218 229 250 255 264
Load Voltage (Output)  208Y
120		 234Y
135		 240Y
139		 229Y
132		 458Y
264		 437Y
252		 208 229 242 208 208 227 232 240
Click part # for info Connection
Diagram		 F E E F J K G G G H G G G G
T-1-81047 KVA
Amps		 1.50
4.17		 0.84
2.08		 0.87
2.08		 1.65
4.17		 1.65
2.08		 3.15
4.17		 0.75
2.08		 0.83
2.08		 0.87
2.08		 1.57
4.38		 0.83
2.29		 0.90
2.29		 0.92
2.29		 0.95
2.29
T-1-81048 KVA
Amps		 3.00
8.33		 1.69
4.17		 1.73
4.17		 3.30
8.33		 3.30
4.17		 6.30
8.33		 1.50
4.17		 1.65
4.17		 1.75
4.17		 3.15
8.75		 1.65
4.58		 1.80
4.58		 1.84
4.58		 1.91
4.58
T-1-81049 KVA
Amps		 4.50
12.50		 2.53
6.25		 2.60
6.25		 4.95
12.50		 4.95
6.25		 9.46
12.50		 2.25
6.25		 2.48
6.25		 2.62
6.25		 4.72
13.13		 2.48
6.87		 2.71
6.87		 2.76
6.88		 2.86
6.88
T-1-81050 KVA
Amps		 7.50
20.83		 4.22
10.42		 4.33
1.42		 8.26
20.83		 8.26
10.42		 15.76
10.42		 3.75
10.42		 4.13
10.42		 4.37
10.42		 7.87
21.88		 4.13
11.46		 4.51
11.46		 4.60
11.46		 4.76
11.46
T-1-81051 KVA
Amps		 15.00
41.67		 8.44
20.83		 8.66
20.83		 16.51
41.67		 16.51
20.83		 31.52
241.67		 7.50
20.83		 8.26
20.83		 8.73
20.83		 15.73
43.75		 8.26
22.92		 9.02
22.92		 9.20
22.92		 9.53
22.92
T-1-81052 KVA
Amps		 22.51
62.50		 12.67
31.25		 12.99
31.25		 24.77
62.50		 24.77
31.25		 47.28
62.50		 11.25
31.25		 12.38
31.25		 13.10
31.25		 23.60
65.63		 12.39
34.37		 13.53
34.37		 13.80
34.37		 14.29
34.38
T-1-11683 KVA
Amps		 30.01
83.33		 16.89
41.67		 17.32
41.67		 33.02
83.33		 33.02
41.67		 63.05
83.33		 15.00
41.67		 16.51
41.67		 17.46
41.67		 31.47
87.50		 16.53
45.83		 18.04
45.83		 18.40
45.83		 19.05
45.83
T-1-11684 KVA
Amps		 45.01
125.00		 25.33
62.50		 25.98
62.50		 49.54
125.00		 49.54
62.50		 94.57
125.00		 22.51
62.50		 24.77
62.50		 26.20
62.50		 47.20
131.25		 24.79
68.75		 27.06
68.75		 27.60
68.75		 28.58
68.75
T-1-11685 KVA
Amps		 60.02
166.67		 33.77
83.33		 34.64
83.33		 66.05
166.67		 66.05
83.33		 126.09
166.67		 30.01
83.33		 33.02
83.33		 34.93
83.33		 62.93
175.00		 33.05
91.67		 36.08
91.67		 36.81
91.67		 38.11
91.67
T-1-11686 KVA
Amps		 90.02
250.00		 50.66
125.00		 51.96
125.00		 99.07
250.00		 99.07
125.00		 189.14
250.00		 45.01
125.00		 49.54
125.00		 52.39
125.00		 94.40
262.50		 49.58
137.50		 54.13
137.50		 55.21
137.50		 57.16
137.50
T-1-11687 KVA
Amps		 150.04
416.67		 84.44
208.33		 86.60
208.33		 165.12
416.67		 165.12
208.33		 315.23
416.67		 75.02
208.33		 82.56
208.33		 87.32
208.33		 157.33
437.50		 82.63
229.17		 90.21
229.17		 92.02
229.17		 95.26
229.17
No. of Transformers 3 3 3 3 3 3 2 2 2 2 2 2 2 2
Catalog Number Connection
Diagram		 F E E F J K G G G H G G G G
  Output for lower voltage can be found by:  Rated Output Voltage
Rated Input Voltage		 x  Input Actual Voltage = Output New Voltage.
 
Output KVA available at reduced voltage can be found by:  Actual Input Voltage
Rated Input Voltage		 x  Output KVA = New KVA Rating.
 
Buck-Boost Transformer Selection Chart
120 x 240 Volts Primary–16/32 Volts Secondary
 Single Phase BOOSTING BUCKING
Line Voltage (Available)  95 100 105 208 215 215 220 225 135 240 240 245 250 255
Load Voltage (Output)  120 113 119 236 244 229 235 240 120 212 225 230 234 239
Click part # for info Connection
Diagram		 B A A D D C C C A D C C C C
T-1-81054 KVA
Amps		 0.19
1.56		 0.35
3.13		 0.37
3.13		 0.37
1.56		 0.38
1.56		 0.72
3.12		 0.73
3.13		 0.75
3.12		 0.42
3.54		 0.38
1.77		 0.75
3.33		 0.77
3.33		 0.78
3.33		 0.80
3.33
T-1-81055 KVA
Amps		 0.38
3.13		 0.71
6.25		 0.74
6.25		 0.74
3.13		 0.76
3.13		 1.43
6.25		 1.47
6.25		 1.50
6.25		 0.84
7.08		 0.75
3.54		 1.50
6.67		 1.53
6.67		 1.56
6.67		 1.59
6.67
T-1-81056 KVA
Amps		 0.56
4.69		 1.06
9.38		 1.12
9.38		 1.11
4.69		 1.14
4.69		 2.15
9.37		 2.20
9.37		 2.25
9.37		 1.27
10.63		 1.13
5.31		 2.25
10.00		 2.30
10.00		 2.34
10.00		 2.39
10.00
T-1-81057 KVA
Amps		 0.94
7.81		 1.77
15.63		 1.86
15.63		 1.84
7.81		 1.90
7.81		 3.58
15.62		 3.67
15.62		 3.75
15.62		 2.11
17.71		 1.88
8.85		 3.75
16.67		 3.83
16.67		 3.91
16.67		 3.98
16.67
T-1-81058 KVA
Amps		 1.88
15.63		 3.54
31.25		 3.72
31.25		 3.68
15.63		 3.81
15.63		 7.17
31.25		 7.33
31.25		 7.50
31.25		 4.22
35.42		 3.75
17.71		 7.50
33.33		 7.66
33.33		 7.81
33.33		 7.97
33.33
T-1-81059 KVA
Amps		 2.82
23.44		 5.31
46.88		 5.58
46.88		 5.53
23.44		 5.71
23.44		 10.75
46.87		 11.00
46.87		 11.25
46.87		 6.33
53.13		 5.63
26.56		 11.25
50.00		 11.48
50.00		 11.72
50.00		 11.95
50.00
T-1-13073 KVA
Amps		 3.76
31.25		 7.08
62.50		 7.44
62.50		 7.37
31.25		 7.61
31.25		 14.33
62.50		 14.67
62.50		 15.00
62.50		 8.44
70.83		 7.50
35.42		 15.00
66.67		 15.31
66.67		 15.62
66.67		 15.94
66.67
T-1-13074 KVA
Amps		 5.64
46.88		 10.63
93.75		 11.16
93.75		 11.05
46.88		 11.42
46.88		 21.50
93.75		 22.00
93.75		 22.50
93.75		 12.66
106.25		 11.25
53.13		 22.50
100.00		 22.97
100.00		 23.44
100.00		 23.91
100.00
T-1-13075 KVA
Amps		 7.52
62.50		 14.71
125.00		 14.88
125.00		 14.73
62.50		 15.23
62.50		 28.67
125.00		 29.33
125.00		 30.00
125.00		 16.88
141.67		 15.00
70.83		 30.00
133.33		 30.62
133.33		 31.25
133.33		 31.87
133.33
T-1-13076 KVA
Amps		 11.28
93.75		 21.25
187.50		 22.31
187.50		 22.10
93.75		 22.84
93.75		 43.00
187.50		 44.00
187.50		 45.00
187.50		 25.31
212.50		 22.50
106.25		 45.00
200.00		 45.94
200.00		 46.87
200.00		 47.81
200.00
T-1-13077 KVA
Amps		 18.80
156.25		 35.42
312.50		 37.19
312.50		 36.83
156.25		 38.07
156.25		 71.67
312.50		 73.33
312.50		 75.00
312.50		 42.19
354.17		 37.50
177.08		 75.00
333.33		 76.56
333.33		 78.12
333.33		 79.69
333.33
Catalog Number Connection
Diagram		 B A A D D C C C A D C C C C
  Output for lower voltage can be found by:  Rated Output Voltage
Rated Input Voltage		 x  Input Actual Voltage = Output New Voltage.
 
Output KVA available at reduced voltage can be found by:  Actual Input Voltage
Rated Input Voltage		 x  Output KVA = New KVA Rating.
 
Buck-Boost Transformer Selection Chart
120 x 240 Volts Primary–16/32 Volts Secondary
 Three Phase BOOSTING BUCKING
Line Voltage (Available)  183Y
106		 208Y
120		 195 208 225 240 245 250 256 265 272
Load Voltage (Available)  208Y
120		 236Y
136		 208 236 240 208 230 234 240 234 240
Click part # for info Connection
Diagram		 F F H G H L H H H G G
T-1-81054 KVA
Amps		 1.12
3.13		 1.28
3.13		 1.13
3.12		 0.64
1.56		 1.30
3.12		 0.56
1.56		 1.33
3.33		 1.35
3.33		 1.39
3.33		 0.72
1.77		 0.74
1.77
T-1-81055 KVA
Amps		 2.25
6.25		 2.55
6.25		 2.25
6.25		 1.28
3.13		 2.60
6.25		 1.13
3.13		 2.65
6.67		 2.71
6.67		 2.77
6.67		 1.43
3.54		 1.47
3.54
T-1-81056 KVA
Amps		 3.37
9.38		 3.83
9.38		 3.38
9.37		 1.91
4.69		 3.90
9.37		 1.69
4.69		 3.98
10.00		 4.06
10.00		 4.16
10.00		 2.15
5.31		 2.21
5.31
T-1-81057 KVA
Amps		 5.61
15.63		 6.38
15.62		 5.63
15.62		 3.19
7.81		 6.50
15.62		 2.81
7.81		 6.63
16.67		 6.77
16.67		 6.93
16.67		 3.59
8.85		 3.68
8.85
T-1-81058 KVA
Amps		 11.23
31.25		 12.76
31.25		 11.26
31.25		 6.38
15.63		 12.99
31.25		 5.63
15.63		 13.26
33.33		 13.53
33.33		 13.86
33.33		 7.17
17.71		 7.36
17.71
T-1-81059 KVA
Amps		 16.84
46.88		 19.14
46.88		 16.89
46.87		 9.58
23.44		 19.49
46.87		 8.44
23.44		 19.89
50.00		 20.30
50.00		 20.78
50.00		 10.76
26.56		 11.04
26.56
T-1-13073 KVA
Amps		 22.45
62.50		 25.52
62.50		 22.52
62.50		 12.76
31.25		 25.98
62.50		 11.26
31.25		 26.52
66.67		 27.06
66.67		 27.71
66.67		 14.34
35.42		 14.72
35.42
T-1-13074 KVA
Amps		 33.68
93.75		 38.28
93.75		 33.77
93.75		 19.14
46.88		 38.97
93.75		 16.89
46.88		 39.78
100.00		 40.59
100.00		 41.57
100.00		 21.52
53.13		 22.08
53.13
T-1-13075 KVA
Amps		 44.90
125.00		 51.04
125.00		 45.03
125.00		 25.52
62.50		 51.96
125.00		 22.52
62.50		 53.04
133.33		 54.13
133.33		 55.43
133.33		 28.69
70.83		 29.44
70.83
T-1-13076 KVA
Amps		 67.36
187.50		 76.56
187.50		 67.55
187.50		 38.28
93.75		 77.94
187.50		 33.77
93.75		 79.57
200.00		 81.19
200.00		 83.14
200.00		 43.03
106.25		 44.17
106.25
T-1-13077 KVA
Amps		 112.26
312.50		 127.59
312.50		 112.58
312.50		 63.80
156.25		 129.90
312.50		 56.29
156.25		 132.61
333.33		 135.32
333.33		 138.56
333.33		 71.72
177.08		 73.61
177.08
No. of Transformers 3 3 2 2 2 2 2 2 2 2 2
Catalog Number Connection
Diagram		 F F H G H L H H H G G
  Output for lower voltage can be found by:  Rated Output Voltage
Rated Input Voltage		 x  Input Actual Voltage = Output New Voltage.
 
Output KVA available at reduced voltage can be found by:  Actual Input Voltage
Rated Input Voltage		 x  Output KVA = New KVA Rating.
 
Buck-Boost Transformer Selection Chart
240 x 480 Volts Primary–24/48 Volts Secondary
 Single Phase BOOSTING BUCKING
Line Voltage (Available)  230 380 416 425 430 435 440 450 465 132 277 480 480 504
Load Voltage (Output)  276 418 458 468 473 457 462 495 483 126 231 436 457 480
Click part # for info Connection
Diagram		 B D D D D C C D C C B D C C
T-1-81061 KVA
Amps		 0.29
1.04		 0.44
1.04		 0.48
1.04		 0.49
1.04		 0.49
1.04		 0.95
2.08		 0.96
2.08		 0.52
1.04		 1.01
2.08		 0.28
2.19		 0.29
1.25		 0.50
1.15		 1.02
2.19		 1.05
2.19
T-1-81062 KVA
Amps		 0.58
2.08		 0.87
2.08		 0.95
2.08		 0.97
2.08		 0.99
2.08		 1.90
4.17		 1.93
4.17		 1.03
2.08		 2.01
4.17		 0.55
4.38		 0.58
2.50		 1.00
2.29		 2.00
4.38		 2.10
4.38
T-1-81063 KVA
Amps		 0.86
3.13		 1.31
3.13		 1.43
3.13		 1.46
3.13		 1.48
3.13		 2.85
6.25		 2.89
6.25		 1.55
3.13		 3.02
6.25		 0.83
6.56		 0.87
3.75		 1.50
3.44		 3.00
6.56		 3.15
6.56
T-1-81064 KVA
Amps		 1.44
5.21		 2.18
5.21		 2.38
5.21		 2.43
5.21		 2.46
5.21		 4.76
10.42		 4.81
10.42		 2.58
5.21		 5.03
10.42		 1.38
10.94		 1.44
6.25		 2.50
5.73		 5.00
10.94		 5.25
10.94
T-1-81065 KVA
Amps		 2.88
10.42		 4.35
10.42		 4.77
10.42		 4.87
10.42		 4.93
10.42		 9.52
20.83		 9.63
20.83		 5.16
10.42		 10.06
20.83		 2.75
21.88		 2.89
12.50		 5.00
11.46		 10.00
21.88		 10.50
21.88
T-1-81066 KVA
Amps		 4.31
15.63		 6.53
15.63		 7.15
15.62		 7.30
15.63		 7.39
15.63		 14.27
31.25		 14.44
31.25		 7.73
15.63		 15.09
31.25		 4.13
32.81		 4.33
18.75		 7.50
17.91		 15.00
32.81		 15.75
17.19
T-1-37920 KVA
Amps		 5.75
20.83		 8.71
20.83		 9.53
20.83		 9.74
20.83		 9.85
20.83		 19.03
41.67		 19.25
41.67		 10.31
20.83		 20.13
41.67		 5.50
43.75		 5.77
25.00		 10.00
22.92		 20.00
43.75		 21.00
43.75
T-1-37921 KVA
Amps		 8.63
31.25		 13.06
31.25		 14.30
31.25		 14.61
31.25		 14.78
31.25		 28.55
62.50		 28.88
62.50		 15.47
31.25		 30.19
62.50		 8.25
65.63		 8.66
37.50		 15.00
34.37		 30.00
65.63		 31.50
65.63
T-1-37922 KVA
Amps		 11.50
41.67		 17.42
41.67		 19.07
41.67		 19.48
41.67		 19.71
41.67		 38.06
83.33		 38.50
83.33		 20.63
41.67		 40.25
83.33		 11.00
87.50		 11.54
50.00		 20.00
45.83		 40.00
87.50		 42.00
87.50
T-1-37923 KVA
Amps		 17.25
62.50		 26.13
62.50		 28.60
62.50		 29.22
62.50		 29.56
62.50		 57.09
125.00		 57.75
125.00		 30.94
62.50		 60.38
125.00		 16.50
131.25		 17.31
75.00		 30.00
68.75		 60.00
131.25		 63.00
131.25
T-1-37924 KVA
Amps		 28.75
104.17		 43.54
104.17		 47.67
104.17		 48.70
104.17		 49.27
104.17		 95.16
208.33		 96.25
208.33		 51.56
104.17		 100.63
208.33		 27.50
218.75		 28.85
125.00		 50.00
114.58		 100.00
218.75		 105.00
218.75
Catalog Number Connection
Diagram		 B D D D D C C D C C B D C C
  Output for lower voltage can be found by:  Rated Output Voltage
Rated Input Voltage		 x  Input Actual Voltage = Output New Voltage.
 
Output KVA available at reduced voltage can be found by:  Actual Input Voltage
Rated Input Voltage		 x  Output KVA = New KVA Rating.
 
Buck-Boost Transformer Selection Chart
240 x 480 Volts Primary–24/48 Volts Secondary
 Three Phase BOOSTING BUCKING
Line Voltage (Available)  399Y
230		 380 430 440 460 460 480 480 440 440 460 460 460 480 500 500
Load Voltage (Available)  480Y
277		 418 473 462 506 483 528 504 400 419 438 418 457 436 455 476
Click part # for info Connection
Diagram		 E G G H G H G H G H H G H G G H
T-1-81061 KVA
Amps		 0.86
1.04		 0.75
1.04		 0.85
1.04		 1.67
2.08		 0.91
1.04		 1.74
2.08		 0.95
1.04		 1.82
2.08		 0.79
1.15		 1.59
2.19		 1.66
2.19		 0.83
1.15		 1.73
2.19		 0.87
1.15		 0.90
1.15		 1.80
2.19
T-1-81062 KVA
Amps		 1.73
2.08		 1.51
2.08		 1.71
2.08		 3.33
4.17		 1.83
2.08		 3.49
4.17		 1.91
2.08		 3.64
4.17		 1.59
2.29		 3.18
4.38		 3.32
4.38		 1.66
2.29		 3.46
4.38		 1.73
2.29		 1.80
2.29		 3.61
4.38
T-1-81063 KVA
Amps		 2.59
3.13		 2.26
3.13		 2.56
3.13		 5.00
6.25		 2.74
3.13		 5.23
6.25		 2.86
3.13		 5.46
6.25		 2.38
3.44		 4.76
6.56		 4.98
6.56		 2.49
3.44		 5.20
6.56		 2.60
3.44		 2.71
3.44		 5.41
6.56
T-1-81064 KVA
Amps		 4.32
5.21		 3.77
5.21		 4.27
5.21		 8.34
10.42		 4.56
5.21		 8.71
10.42		 4.76
5.21		 9.09
10.42		 3.97
5.73		 7.94
10.94		 8.30
10.94		 4.15
5.73		 8.66
10.94		 4.33
5.73		 4.51
5.73		 9.02
10.94
T-1-81065 KVA
Amps		 8.64
10.42		 7.54
10.42		 8.53
10.42		 16.67
20.83		 9.13
10.42		 17.43
20.83		 9.53
10.42		 18.19
20.83		 7.94
11.46		 15.88
21.88		 16.60
21.88		 8.30
11.46		 17.32
21.88		 8.66
11.46		 9.02
11.46		 18.04
21.88
T-1-81066 KVA
Amps		 12.96
15.62		 11.31
15.63		 12.80
15.63		 25.01
31.25		 13.69
15.63		 26.14
31.25		 14.29
15.63		 27.28
31.25		 11.91
17.19		 23.82
32.81		 24.90
32.81		 12.45
17.19		 25.98
32.81		 12.99
17.19		 13.53
17.19		 27.06
32.81
T-1-37920 KVA
Amps		 17.28
20.83		 15.08
20.83		 17.07
20.83		 33.34
41.67		 18.26
20.83		 34.86
41.67		 19.05
20.83		 36.37
41.67		 15.88
22.92		 31.75
43.75		 33.20
43.75		 16.60
22.92		 34.64
43.75		 17.32
22.92		 18.04
22.92		 36.08
43.75
T-1-37921 KVA
Amps		 25.92
31.25		 22.62
31.25		 25.60
31.25		 50.01
62.50		 27.39
31.25		 52.29
62.50		 28.58
31.25		 54.66
62.50		 23.82
34.38		 47.63
65.63		 49.80
65.63		 24.90
34.38		 51.96
65.63		 25.98
34.37		 27.06
34.37		 54.13
65.63
T-1-37922 KVA
Amps		 34.55
41.67		 30.17
41.67		 34.14
41.67		 66.68
83.33		 36.52
41.67		 69.72
83.33		 38.11
41.67		 72.75
83.33		 31.75
45.83		 63.51
87.50		 66.40
87.50		 33.20
45.83		 69.28
87.50		 34.64
45.83		 36.08
45.83		 72.17
87.50
T-1-37923 KVA
Amps		 51.83
62.50		 45.25
62.50		 51.20
62.50		 100.03
125.00		 54.78
62.50		 104.57
125.00		 57.16
62.50		 109.12
125.00		 47.63
68.75		 95.26
131.25		 99.59
131.25		 49.80
68.75		 103.92
131.25		 51.96
68.75		 54.13
68.75		 108.25
131.25
T-1-37924 KVA
Amps		 86.39
104.17		 75.42
104.17		 85.34
104.17		 166.71
208.33		 91.29
104.17		 174.29
208.33		 95.26
104.17		 181.87
208.33		 79.39
114.58		 158.77
218.75		 165.99
218.75		 82.99
114.58		 173.21
218.75		 86.60
114.58		 90.21
114.58		 180.42
218.75
No. of Transformers 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
Catalog Number Connection
Diagram		 E G G H G H G H G H H G H G G H
  Output for lower voltage can be found by:  Rated Output Voltage
Rated Input Voltage		 x  Input Actual Voltage = Output New Voltage.
 
Output KVA available at reduced voltage can be found by:  Actual Input Voltage
Rated Input Voltage		 x  Output KVA = New KVA Rating.
 


 

Worldwide Shipping worldwide shipping
We can ship transformers from our regional warehouses to speed up the shipping time frame. We also offer fast turnaround on custom built transformers, built to your needs.
 

Large Inventory Acme Transformers large Inventory
Because we both manufacture  transformers and carry all the brands, you can rely on us as your one-stop source for high quality transformers at wholesale prices. Because of this, we offer one of the largest inventories of transformers. What other companies have to custom build, we probably keep in stock. Call to order today!
 

AC Line Reactors, AC Refrigeration & Appliance Transformers, Transformer Accessories, Buck-Boost Transformers, DC Power Supplies, Drive Isolation Transformers, Industrial Control Transformers, Low Voltage Lighting Transformers, Panel-Tran Zone Power Centers, Power Conditioning,

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How to select an Acme Transformer

ACME TRANSFORMER TYPES

Dry-Type Distribution Transformers
Acme offers a wide selection of Dry-Type Transformers from single-phase to commercial grade three-phase and low-noise transformers.

Industrial Control Transformers
The Acme Industrial Control Transformers offer the most advanced and versatile design concepts available to the marketplace today. They are designed to meet Acme’s rigid standards for mechanical durability as well as surpass agency and industrial
electrical standards.

Low Voltage Lighting Transformers & Power Supplies
Acme’s Low Voltage Lighting products provide a safe, long lasting, highly reliable power source.  These products are a perfect selection for landscape applications as well as interior use.  Low voltage lighting is a creative medium with unlimited application
possibilities.

Non-Linear Load Isolation
Transformers are
available in sizes ranging from 30 through 225 KVA with copper windings and a variety of other design options and accessories. Acme harmonic mitigating transformers offer you reduced transformer heat, reduced voltage distortion due to third order harmonics and higher efficiency.

Panel-Tran Zone Power Centers
are a pre-wired combination
of a primary breaker disconnect, dry-type shielded transformer,
secondary breaker disconnect and a secondary power panel all in one convenient package. By not having to assemble, mount and wire these components, you save money, space and time. All you have to do is add the breakers, and you are ready to go.

Power Conditioning
Acme True-Power Products consist of specially designed ferroresonant
transformers. Although ferroresonant transformers have been an economical solution to power problems for many years, it took the skills of Acme’s highly regarded engineering
staff to refine it to meet today’s exacting requirements.

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