
Main circuit: 630A-20kA (4s), 25kA (3s).
Mechanical life: 5000 operations.
Grounding circuit: 20kA (2s).
Mechanical life: 3000 operations.



No. | ltem | Unit | Data |
1 | Rated frequency | Hz | 50 |
2 | Rated current | A | 630 |
3 | Rated short time withstand current | KA | 20/25 |
4 | Rated peak withstand current | KA | 50 |
5 | Rated short circuit duration | S | 4 |
6 | Rated short circuit making current | KA | 50 |
7 | Theoretical operation | Times | 5000 |






Q1: Are you a factory or trading company
A1: Yes, we are a top-notch manufacturer dedicated to the research, development, and production of a wide range of high-quality transformers. Both our products and prices are very competitive.
Q2: How does your factory do regarding quality control?
A2: All the products will be 100% checked and tested before delivery. All our products comply to strict tests, easy maintenance is guaranteed. We also offer on-line after-sale service in case of any further problems.
Q3: When can I get the price?
A3: Usually we quote within 24 hours after we get your inquiry.
Q4: How could I get a sample?
A4: if you can not buy our product in your local area, we will ship a sample to you. You will be charged a sample price plus all related shipping costs. Express delivery charge depends on the quantity of the samples.
(Does not include large electrical equipment.)
Q5: What is the price of shipping?
A5: Depending upon the port of delivery, the price varies.