Thanks to a HF/RF interference filter, D 9 protects electrical devices, working as a high voltage starter that suppresses peak current. This suppressor circuit works with celerity and protects outputs from overvoltage. D 9 eliminates any noise in the electrical network coming from electric motors, fluorescent or similar sources. It features 8 outputs with external circuit breakers to connect devices with a maximum load of 15 A (voltmeter available via LED bar). The device also has 2 retractable lights (7 W each) and dimmer control for a better visualization of other device´s front panels.