Isolation (Double-Winding) Transformer
- Primary Voltage
- 220V TO 480V
- Secondary Voltage
- 110V TO 480V
- Frequency
- 50/60 Hz
- Insulation Class
- B CLASS /
- VA Ratings
- 5KVA TO 150KVA
Cased three-phase transformers for factory and industrial equipment. Specify the electrical configuration, installation environment and enclosure requirements before confirming the design.
Custom specification guide
Actual appearance may vary with voltage, rating and construction.
Product specifications
| Item | Isolation (Double-Winding) Transformer | Autotransformer |
|---|---|---|
| Primary Voltage | 220V TO 480V | 220V TO 440V |
| Secondary Voltage | 110V TO 480V | 110V TO 440V |
| Frequency | 50/60 Hz | 50/60 Hz |
| Insulation Class | B CLASS / | B CLASS / |
| VA Ratings | 5KVA TO 150KVA | 5KVA TO 300KVA |
Autotransformer
- Primary Voltage
- 220V TO 440V
- Secondary Voltage
- 110V TO 440V
- Frequency
- 50/60 Hz
- Insulation Class
- B CLASS /
- VA Ratings
- 5KVA TO 300KVA
Cased transformer dimensions
Swipe sideways to see the full table.
| Type | Rating | W (mm) | D (mm) | H (mm) |
|---|---|---|---|---|
| Air-cooled | 5KVA | 320 | 300 | 366 |
| Air-cooled | 7KVA | 340 | 320 | 463 |
| Air-cooled | 10KVA | 380 | 350 | 510 |
| Air-cooled | 15KVA | 435 | 360 | 600 |
| Air-cooled | 20KVA | 435 | 360 | 600 |
| Air-cooled | 25KVA | 435 | 360 | 600 |
| Air-cooled | 30KVA | 450 | 400 | 690 |
| Air-cooled | 40KVA | 450 | 400 | 690 |
| Air-cooled | 50KVA | 450 | 400 | 710 |
| Oil-cooled | 30KVA | 640 | 560 | 730 |
| Oil-cooled | 40KVA | 640 | 560 | 730 |
| Oil-cooled | 50KVA | 690 | 620 | 780 |
| Oil-cooled | 60KVA | 690 | 620 | 780 |
| Oil-cooled | 70KVA | 690 | 620 | 780 |
| Oil-cooled | 80KVA | 740 | 640 | 840 |
| Oil-cooled | 100KVA | 740 | 640 | 840 |
| Oil-cooled | 150KVA | 790 | 760 | 900 |
| Oil-cooled | 200KVA | 750 | 680 | 900 |
| Oil-cooled | 250KVA | 800 | 700 | 930 |
| Oil-cooled | 300KVA | 860 | 710 | 960 |
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.