Breaker(ACB), Automatic Transfer Switch(ATS), Control Panels and Switchgears since its foundation in 1986.
Through continuing products development with technological innovation and accumulated experiences, The below listed O-Sung products are supplied to domestic and overseas markets with good reputation

- Air Circuit Breaker (630A~6300A)
- Automatic Transfer Switch (100A~6300A)
- Automatic Transfer Circuit Breaker (630A~3200A)
- Auto Control Panel and By-Pass ATS Panel

With the combination of its high standard design, reliable quality assurance and high productivity, O-Sung's quality system meets the requirements of ISO 9001. Further, O-Sung' products carry the certifications of world leading testing labs.
In addition to continuing development of highly advanced products, O-Sung is committed to supply the superior products with complete customer satisfaction.