Terasaki Electric Co., Ltd. is engages in the manufacture and sale of motor control systems, circuit breakers, and electronic devices. It operates through the following divisions: Marine Systems, Industrial Systems, Circuit Breakers, Medical Devices, and Engineering and Lifecycle Services. The Marine Systems division deals with power and distribution control systems, engine monitoring and control systems, and energy-saving and environment-friendly systems. The Industrial Systems division includes industrial power distribution control systems and cogeneration systems. The Circuit Breakers division develops and sells circuit breakers, multi-protection relays, and earth leakage relays. The Medical Devices division offers medical devices used in research and development to clinical care. The Engineering and Lifecycle Services division delivers solutions for the stable safe use of electric energy. The company was founded by Yasutaro Terasaki on October 1, 1923 and is headquartered in Osaka, Japan.