Isolation (Double-Winding) Transformer
- Primary Voltage
- 50V TO 700V
- Secondary Voltage
- 12V TO 700V
- Frequency
- 50/60 Hz
- Insulation Class
- B CLASS / H CLASS
- VA Ratings
- 50VA TO 1KVA
Covered control transformers with lead-wire connections, available in the 50VA–1kVA range described in our product lineup. A cover does not establish an ingress protection rating; confirm environmental requirements separately.
Custom specification guide
Actual appearance may vary with voltage, rating and construction.
Product specifications
| Item | Isolation (Double-Winding) Transformer | Autotransformer |
|---|---|---|
| Primary Voltage | 50V TO 700V | 50V TO 600V |
| Secondary Voltage | 12V TO 700V | 25V TO 300V |
| Frequency | 50/60 Hz | 50/60 Hz |
| Insulation Class | B CLASS / H CLASS | B CLASS / H CLASS |
| VA Ratings | 50VA TO 1KVA | 100VA TO 2KVA |
Autotransformer
- Primary Voltage
- 50V TO 600V
- Secondary Voltage
- 25V TO 300V
- Frequency
- 50/60 Hz
- Insulation Class
- B CLASS / H CLASS
- VA Ratings
- 100VA TO 2KVA
Dimensional drawings
Tap a drawing to view it at full size.
Covered isolation transformer dimensions
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| Rating / (mm) | W | D | H | A | B |
|---|---|---|---|---|---|
| 50VA | 80 | 95 | 75 | 65 | 65 |
| 80VA | 90 | 95 | 85 | 72 | 68 |
| 100VA | 100 | 105 | 95 | 80 | 65 |
| 150VA | 100 | 110 | 95 | 80 | 73 |
| 200VA | 110 | 110 | 100 | 93 | 73 |
| 300VA | 118 | 125 | 115 | 102 | 80 |
| 500VA | 135 | 130 | 125 | 120 | 83 |
| 750VA | 155 | 155 | 150 | 137 | 95 |
| 1000VA | 155 | 165 | 150 | 137 | 105 |
Covered autotransformer dimensions
Swipe sideways to see the full table.
| Rating / (mm) | W | D | H | A | B |
|---|---|---|---|---|---|
| 100VA | 80 | 95 | 75 | 65 | 65 |
| 150VA | 90 | 95 | 85 | 72 | 68 |
| 200VA | 100 | 105 | 95 | 80 | 65 |
| 300VA | 100 | 110 | 95 | 80 | 73 |
| 500VA | 118 | 125 | 115 | 102 | 80 |
| 750VA | 135 | 130 | 125 | 120 | 83 |
| 1000VA | 135 | 130 | 125 | 120 | 83 |
| 2000VA | 155 | 165 | 150 | 137 | 105 |
Frequently asked questions
Can I request a custom specification?
Send the input and output voltages, rating, frequency and mounting requirements for review. Availability is subject to the specific combination of requirements.
Are these dimensions fixed for every configuration?
These are reference dimensions. Voltage, winding type, terminals and construction may change the final size. Confirm dimensions against the approved drawing.
How do I confirm approvals and documents?
State the destination, required approvals and documentation in your inquiry. We will confirm availability and the applicable model and scope.
LET’S TALK ABOUT YOUR SPECIFICATION
Let’s discuss your requirements.
Tell us your application, voltages, rating and quantity for a manufacturing review.