Buck Boost Transformers

 To Buy Acme Buck Boost Transformers Call TEMCo for the Guaranteed Lowest Price  -  1-800-613-2290
Link: Acme Buck Boost Transformer

Acme Buck Boost Transformers

◙ Buck Boost Transformer Installation  ◙ Three Phase Buck Boost Transformers  ◙ Low Voltage Applications  ◙ AC Line Reactors 
◙ Acme Buck Boost Transformers  ◙ Hammond Buck Boost Transformers 
◙ Jefferson Buck Boost Transformers  ◙ Other Popular Voltage Transformers  ◙ TEMCo Buck Boost Transformers

Acme carries a ful line of transformers including Buck Boost Transformers.

Buck Boost Transformer Home
Links, Information & Listings
for types of Buck Boost Transformers. Access to wholesale pricing!

Buck Boost Transformer Installation
Details and further information regarding installation and basic configurations.

Three Phase Buck Boost Transformers
Fundamental data with links to listings of transformers used in 3 phase applications.

Low Voltage Applications
 A basic description and links to transformers recommended for low voltage applications.

AC Line Reactors
Adjust, block or otherwise handle unwanted power characteristics often generated during normal use of power in an area. Not to be confused with the need for a Buck Boost or other type Transformer.

Acme Buck Boost Transformers
A reliable leading American transformer distributing company.

Hammond Buck Boost Transformers
Originated as a family -owned and run company and is now a nation-wide distributor!

Jefferson Buck Boost Transformers
In business over 93 years; supplying a diverse selection of products to an equally diverse clientele.

Other Popular Voltage Transformers
 Power transmission and distribution requires voltage and line characteristics to be altered and adjusted in several ways. Read up on what is generally available.

TEMCo Buck Boost Transformers
 The fast-growing company that has taken a top niche in providing you with quality electrical transformers and power products.

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transformer guide
Small kVA 3 Phase Transformers

ACME BUCK BOOST TRANSFORMERS

RESOURCE LINKS, MODELS & DESCRIPTIONS

Acme Buck Boost Transformers

 

Acme Buck Boost Transformers are categorized into three groups. They are all single phase, and the groups are separated by primary and secondary voltages. Each model listed below is rated for a specific KVA load range.

Remember, it is also important to get a transformer that matches the frequency of the service you are using. Most will be 60HZ, but there are locations that have 50HZ services. The Acme Buck Boost Transformers listed on this and on resources linked are 60HZ, but other frequencies and voltages can be custom ordered.

 Click on a model number on for a link to Acme Buck Boost Transformers pricing.

Acme Buck Boost Transformers
 GROUP I Single Phase (60Hz):
 Primary Voltage 120 X 240/Secondary Voltage 12/24

Models:

  0.05 KVA  T-1-81047      0.10 KVA  T-1-81048      0.15 KVA  T-1-81049 

  0.25 KVA  T-1-81050      0.50 KVA  T-1-81051      0.75 KVA  T-1-81052 

  1.00 KVA  T-1-11683      1.50 KVA  T-1-11684      2.00 KVA  T-1-11685

  3.00 KVA  T-1-11686      5.00 KVA  T-1-11687      7.50 KVA  T-1-11688   

10.00 KVA  T-1-11689

 

Acme Buck Boost Transformers
 GROUP II Single Phase (60Hz):
 Primary Voltage 120 X 240/Secondary Voltage 16/32

Models:

  0.05 KVA  T-1-81054      0.10 KVA  T-1-81055      0.15 KVA  T-1-81056 

  0.25 KVA  T-1-81057      0.50 KVA  T-1-81058      0.75 KVA  T-1-81059 

  1.00 KVA  T-1-13073      1.50 KVA  T-1-13074      2.00 KVA  T-1-13075

  3.00 KVA  T-1-13076      5.00 KVA  T-1-13077      7.50 KVA  T-1-13078  

10.00 KVA  T-1-13079

 

Acme Buck Boost Transformers
 GROUP III Single Phase (60Hz):
 Primary Voltage 240 X 480/Secondary Voltage 24/48

Models:

  0.05 KVA  T-1-81061      0.10 KVA  T-1-81062      0.15 KVA  T-1-81063 

  0.25 KVA  T-1-81064      0.50 KVA  T-1-81065      0.75 KVA  T-1-81066 

  1.00 KVA  T-1-37920      1.50 KVA  T-1-37921      2.00 KVA  T-1-37922

  3.00 KVA  T-1-37923      5.00 KVA  T-1-37924      7.50 KVA  T-1-43570

10.00 KVA  T-1-43571

Contact TEMCo for your Acme Buck Boost Transformer needs. TEMCo carries most major brands and offers competitive pricing with quick delivery. Custom-made products are also available.

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.
 

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