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     In Stock Standard Design Toroidal Isolation Transformers

Bridgeport Magnetics offers both a standard series and custom designed isolation transformers for industrial, commercial, and medical applications.

Our standard design isolation transformers are available up to 5,000VA with dual or quad primaries and customer specified secondaries.

Safety Standards:
For industrial and commercial applications, our transformers are certified to  Safety Standards: UL506, CSA C22.2 No.66-1988, EN 61558-1, IEC61558-1, IEC742 and come with CE marking. Intertek File:  3051384

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    Standard Design 120V/60 Hz Toroidal Isolation Transformers
    for Industrial and Commercial Applications
    Single Primary Voltage 120V
     Power Rating VA
     P/N
    # Dimensions* Weight* Mounting Hardware
    Secondaries  OD. x HT      in.  mm  lbs.    kg
    50 TD050-1120 1 x 120V 3.2 x 1.5 81 x 38 1.7 0.8 Washer/ pad size: 2
    50 TD050-2120 2 x 120V 3.2 x 1.5 81 x 38 1.7 0.8 Washer/ pad size: 2
    100 TD100-1120 1 x 120V 3.9 x 1.6 99 x 41 2.4 1.1 Washer/ pad size: 3
    100 TD100-2120 2 x 120V 3.9 x 1.6 99 x 41 2.4 1.1 Washer/ pad size: 3
    300 TD300-1120 1 x 120V 5.2 x 2.3 132 x 58 6.2 2.8 Washer/ pad size:  4
    300 TD300-2120 2 x 120V 5.2 x 2.3 132 x 58 6.2 2.8 Washer/ pad size:  4
    350 TD350-1120 1 x 120V 5.0 x 2.3 127 x 59 6.2 2.8 Washer/ pad size:  4
    350 TD350-2120 2 x 120V 5.0 x 2.3 127 x 59 6.2 2.8 Washer/ pad size:  4
    400 TD400-1120 1 x 120V 5.2 x 2.5 132 x 64 7.4 3.4 Washer/ pad size:  4
    400 TD400-2120 2 x 120V 5.2 x 2.5 132 x 64 7.4 3.4 Washer/ pad size:  4
    500 TD500-1120 1 x 120V 5.2 x 2.9 140 x 64 9.5 4.3 Washer/ pad size:  5
    500 TD500-2120 2 x 120V 5.2 x 2.9 140 x 64 9.5 4.3 Washer/ pad size:  5
    600 TD600-1120 1 x 120V 5.7 x 2.9 145 x 74 10.3 4.7 Epoxy potted center
    w/ 1/4" hole
    600 TD600-2120 2 x 120V 5.7 x 2.9 145 x 74 10.3 4.7 Epoxy potted center
    w/ 1/4" hole
    650 TD650-1120 1 x 120V 6.2 x 3.2 158 x 80 11.2 5.1 Epoxy potted center
    w/ 1/4" hole
    650 TD650-2120 2 x 120V 6.2 x 3.2 158 x 80 11.2 5.1 Epoxy potted center
    w/ 1/4" hole
    800 TD800-1120 1 x 120V 6.6 x 2.9 160 x 74 13.4 6.1 Epoxy potted center
    w/ 1/4" hole
    800 TD800-2120 2 x 120V 6.6 x 2.9 160 x 74 13.4 6.1 Epoxy potted center
    w/ 1/4" hole
    1000 TD1000-1120 1 x 120V 6.6 x 3.0 168 x 76 18.0 8.2 Epoxy potted center
    w/ 1/4" hole
    1000 TD1000-2120 2 x 120V 6.6 x 3.0 168 x 76 18.0 8.2 Epoxy potted center
    w/ 1/4" hole
    1200 TD1200-1120 1 x 120V 7.2 x 3.2 183 x 82 22.0 10.0 Epoxy potted center
    w/ 1/4" hole
    1200 TD1200-2120 2 x 120V 7.2 x 3.2 183 x 82 22.0 10.0 Epoxy potted center
    w/ 1/4" hole
    1500 TD1500-1120 1 x 120V 7.8 x 3.5 198 x 89 26.0 11.8 Epoxy potted center
    w/ 1/4" hole
    1500 TD1500-2120 2 x 120V 7.8 x 3.5 198 x 89 26.0 11.8 Epoxy potted center
    w/ 1/4" hole
    1800 TD1800-1120 1 x 120V 8.1 x 3.7 205 x 94 30.0 13.6 Epoxy potted center
    w/ 1/4" hole
    1800 TD1800-2120 2 x 120V 8.1 x 3.7 205 x 94 30.0 13.6 Epoxy potted center
    w/ 1/4" hole
    2000 TD2000-1120 1 x 120V 8.4 x 3.9 213 x 99 34.0 15.5 Epoxy potted center
    w/ 1/4" hole
    2000 TD2000-2120 2 x 120V 8.4 x 3.9 213 x 99 34.0 15.5 Epoxy potted center
    w/ 1/4" hole
    2500 TD2500-1120 1 x 120V 8.4 x 3.9 213 x 99 34.0 15.5 Epoxy potted center
    w/ 1/4" hole
    2500 TD2500-2120 2 x 120V         Epoxy potted center
    w/ 1/4" hole
    3000 TD3000-1120 1 x 120V         Epoxy potted center
    w/ 1/4" hole
    3000 TD3000-2120 2 x 120V         Epoxy potted center
    w/ 1/4" hole
    5000 TD5000-1120 1 x 120V         Epoxy potted center
    w/ 1/4" hole
    5000 TD5000-2120 2 x 120V         Epoxy potted center
    w/ 1/4" hole

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* Please call for final dimensions and weight.

 

         

Standard Design International 120/240V 50-60Hz Toroidal Isolation Transformers
for Industrial and Commerical Applications
Dual Primaries: 2 X 120V, 50/60 Hz    (Optional  Quad Primaries: 100/120/220/240V )
Power Rating VA
P/N
# Dimensions* Weight* Mounting Hardware
Secondaries  OD. x HT      in.  mm  lbs.    kg
50 TN050-1120 1 x 120V 3.2 x 1.5 81 x 38 1.7 0.8 Washer/ pad size: 2
50 TN050-2120 2 x 120V 3.2 x 1.5 81 x 38 1.7 0.8 Washer/ pad size: 2
100 TN100-1120 1 x 120V 3.9 x 1.6 99 x 41 2.4 1.1 Washer/ pad size: 3
100 TN100-2120 2 x 120V 3.9 x 1.6 99 x 41 2.4 1.1 Washer/ pad size: 3
300 TN300-1120 1 x 120V 5.2 x 2.3 132 x 58 6.2 2.8 Washer/ pad size:  4
300 TN300-2120 2 x 120V 5.2 x 2.3 132 x 58 6.2 2.8 Washer/ pad size:  4
350 TN350-1120 1 x 120V 5.0 x 2.3 127 x 59 6.2 2.8 Washer/ pad size:  4
350 TN350-2120 2 x 120V 5.0 x 2.3 127 x 59 6.2 2.8 Washer/ pad size:  4
400 TN400-1120 1 x 120V 5.2 x 2.5 132 x 64 7.4 3.4 Washer/ pad size:  4
400 TN400-2120 2 x 120V 5.2 x 2.5 132 x 64 7.4 3.4 Washer/ pad size:  4
500 TN500-1120 1 x 120V 5.2 x 2.9 140 x 64 9.5 4.3 Washer/ pad size:  5
500 TN500-2120 2 x 120V 5.2 x 2.9 140 x 64 9.5 4.3 Washer/ pad size:  5
600 TN600-1120 1 x 120V 5.7 x 2.9 145 x 74 10.3 4.7 Epoxy potted center
w/ 1/4" hole
600 TN600-2120 2 x 120V 5.7 x 2.9 145 x 74 10.3 4.7 Epoxy potted center
w/ 1/4" hole
650 TN650-1120 1 x 120V 6.2 x 3.2 158 x 80 11.2 5.1 Epoxy potted center
w/ 1/4" hole
650 TN650-2120 2 x 120V 6.2 x 3.2 158 x 80 11.2 5.1 Epoxy potted center
w/ 1/4" hole
800 TN800-1120 1 x 120V 6.6 x 2.9 160 x 74 13.4 6.1 Epoxy potted center
w/ 1/4" hole
800 TN800-2120 2 x 120V 6.6 x 2.9 160 x 74 13.4 6.1 Epoxy potted center
w/ 1/4" hole
1000 TN1000-3120 1 x 120V 6.6 x 3.0 168 x 76 18.0 8.2 Epoxy potted center
w/ 1/4" hole
1000 TN1000-4120 2 x 120V 6.6 x 3.0 168 x 76 18.0 8.2 Epoxy potted center
w/ 1/4" hole
1200 TN1200-1120 1 x 120V 7.2 x 3.2 183 x 82 22.0 10.0 Epoxy potted center
w/ 1/4" hole
1200 TN1200-2120 2 x 120V 7.2 x 3.2 183 x 82 22.0 10.0 Epoxy potted center
w/ 1/4" hole
1500 TN1500-1120 1 x 120V 7.8 x 3.5 198 x 89 26.0 11.8 Epoxy potted center
w/ 1/4" hole
1500 TN1500-2120 2 x 120V 7.8 x 3.5 198 x 89 26.0 11.8 Epoxy potted center
w/ 1/4" hole
1800 TN1800-1120 1 x 120V 8.1 x 3.7 205 x 94 30.0 13.6 Epoxy potted center
w/ 1/4" hole
1800 TN1800-2120 2 x 120V 8.1 x 3.7 205 x 94 30.0 13.6 Epoxy potted center
w/ 1/4" hole
2000 TN2000-1120 1 x 120V 8.4 x 3.9 213 x 99 34.0 15.5 Epoxy potted center
w/ 1/4" hole
2000 TN2000-2120 2 x 120V 8.4 x 3.9 213 x 99 34.0 15.5 Epoxy potted center
w/ 1/4" hole
2500 TN2500-1120 1 x 120V 8.4 x 3.9 213 x 99 34.0 15.5 Epoxy potted center
w/ 1/4" hole
2500 TN2500-2120 2 x 120V         Epoxy potted center
w/ 1/4" hole
3000 TN3000-1120 1 x 120V         Epoxy potted center
w/ 1/4" hole
3000 TN3000-2120 2 x 120V         Epoxy potted center
w/ 1/4" hole
5000 TN5000-1120 1 x 120V         Epoxy potted center
w/ 1/4" hole
5000 TN5000-2120 2 x 120V         Epoxy potted center
w/ 1/4" hole

* Please call for final dimensions and weight.

 

 

Custom Designed toroidal isolation transformer information

   Click here for information on our medical grade isolation transformers.

Click here for information on 400 Hz applications

 

ISOLATION TRANSFORMER OPTIONS:
Standard options include auto-resettable thermal protection, static shield or magnetic shield around the circumference to minimize magnetic strayfield emission.

  • All transformers are available with single or dual secondary windings.
  • Automatic resettable thermal protector (See Figure 1)
  • Single secondary (See Figure 2)
  • Dual secondaries (See Figure 3 )
      Figure 1
     Figure 2
     Figure 3

Standard Mounting Methods

A metal washer and rubber pads provide the most economical way of mounting the transformer horizontally and is adequate for transformers under 600 VA, provided the transformer is not installed in a product that receives rough handling.  Above 600 VA, epoxy potted center is standard mounting method.  Prices include mounting hardware, either a steel washer and two rubber pads or as shown for larger sizes, an epoxy potted center with one or two drilled mounting holes.

  • Optional Potted Center

For a nominal cost you can order smaller transformers with epoxy potting, either with drilled hole or threaded inserts. The potting has a recessed top to accommodate screw head. Flat bottom is a standard feature.

  • The L-Bracket
    An L-shaped steel bracket is an economical solution for vertical mounting. A metal washer and two rubber pads are furnished with each L-bracket. Larger transformers will have an epoxy potted center.

Standard Sizes of Steel Washers

Dimensions in Inches

Size

A

B

C

T

D

1

2.00

.75

.188

.04

.18

2

2.38

.88

.188

.05

.22

3

2.75

1.13

.25

.06

.26

4

3.50

1.25

.25

.06

.28

5

4.38

1.38

.31

.08

.33

6

5.70

1.75

.31

.08

.50

Standard Washers


Optional Epoxy Mounting is Available
Epoxy potted center with thru-hole        
Epoxy potted center with threaded insert

Other Options:
Quad primaries: 100/120/220/240V       
Electrostatic shield                               
Automatic resettable thermal protecto

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