1. Core using by the high quality cold rolled silicon steel belt core coiling of the CD, or USES the high quality cold rolled silicon steel sheet pile with and approved by a special process treatment to reduce no-load current and no-load loss.
2. The coils for class B or class F insulation.
3. The core and coil with epoxy resin casting, firm structure, good heat dissipation, has a good waterproof performance.
4. The cable entry leads through the top of the transformer terminal block wiring conveniently.